Emerson (Vilter) · Refrigeration controller
Vission 20/20 micro-controller Modbus register map
Default configuration
- Protocol
- Modbus TCP
- Port
- 502
- Unit ID
- 1
- Addressing
- 1-based
- Byte order
- Big endian
- Word order
- High word first
Register map
| Address | Count | Name | Type | Unit | Scale | Access |
|---|---|---|---|---|---|---|
| 1 | 1 | Compressor Interlock | Int16 | - | 1 | R |
| 2 | 1 | High Level Shutdown | Int16 | - | 1 | R |
| 3 | 1 | Oil Level Switch #1 | Int16 | - | 1 | R |
| 4 | 1 | Oil Level Switch #2 | Int16 | - | 1 | R |
| 5 | 1 | Remote Select #1/#2 | Int16 | - | 1 | R |
| 6 | 1 | Remote Start | Int16 | - | 1 | R |
| 7 | 1 | Remote Increase | Int16 | - | 1 | R |
| 8 | 1 | Remote Decrease | Int16 | - | 1 | R |
| 9 | 1 | Auxiliary 1 | Int16 | - | 1 | R |
| 10 | 1 | Auxiliary 2 | Int16 | - | 1 | R |
| 11 | 1 | Auxiliary 3 | Int16 | - | 1 | R |
| 12 | 1 | Auxiliary 4 | Int16 | - | 1 | R |
| 13 | 1 | Auxiliary 5 | Int16 | - | 1 | R |
| 14 | 1 | Auxiliary 6 | Int16 | - | 1 | R |
| 15 | 1 | Auxiliary 7 | Int16 | - | 1 | R |
| 16 | 1 | Auxiliary 8 | Int16 | - | 1 | R |
| 51 | 1 | Compressor Start | Int16 | - | 1 | R |
| 52 | 1 | Oil Pump | Int16 | - | 1 | R |
| 53 | 1 | Capacity Increase | Int16 | - | 1 | R |
| 54 | 1 | Capacity Decrease | Int16 | - | 1 | R |
| 55 | 1 | Volume Increase | Int16 | - | 1 | R |
| 56 | 1 | Volume Decrease | Int16 | - | 1 | R |
| 57 | 1 | Oil Separator Heater | Int16 | - | 1 | R |
| 58 | 1 | Trip | Int16 | - | 1 | R |
| 59 | 1 | Slide Valve Setpoint #1 | Int16 | - | 1 | R |
| 60 | 1 | Slide Valve Setpoint #2 | Int16 | - | 1 | R |
| 61 | 1 | Alarm | Int16 | - | 1 | R |
| 62 | 1 | Economizer Port #2 | Int16 | - | 1 | R |
| 63 | 1 | Liquid Injection Solenoid #1 | Int16 | - | 1 | R |
| 64 | 1 | Liquid Injection Solenoid #2 | Int16 | - | 1 | R |
| 65 | 1 | Remote Enabled | Int16 | - | 1 | R |
| 66 | 1 | Emergency Output | Int16 | - | 1 | R |
| 67 | 1 | Condenser Step #1 | Int16 | - | 1 | R |
| 68 | 1 | Condenser Step #2 | Int16 | - | 1 | R |
| 69 | 1 | Condenser Step #3 | Int16 | - | 1 | R |
| 70 | 1 | Condenser Step #4 | Int16 | - | 1 | R |
| 71 | 1 | Auxiliary Output #1 | Int16 | - | 1 | R |
| 72 | 1 | Auxiliary Output #2 | Int16 | - | 1 | R |
| 73 | 1 | Auxiliary Output #3 | Int16 | - | 1 | R |
| 74 | 1 | Auxiliary Output #4 Analog | Int16 | - | 1 | R |
| 100 | 1 | Motor Amps Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 101 | 1 | Suction Pressure Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 102 | 1 | Discharge Pressure Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 103 | 1 | Oil Filter Inlet Pressure Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 104 | 1 | Oil Manifold Pressure Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 105 | 1 | Economizer Pressure Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 106 | 1 | Capacity Slide % Value is transmitted as ten times the engineering value (F-INT). | Int16 | % | 0.1 | R |
| 107 | 1 | Volume Slide % Value is transmitted as ten times the engineering value (F-INT). | Int16 | % | 0.1 | R |
| 108 | 1 | Suction Temperature Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 109 | 1 | Discharge Temperature Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 110 | 1 | Oil Separator Temperature Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 111 | 1 | Oil Manifold Temperature Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 112 | 1 | Process Control Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 113 | 1 | Chiller Inlet Temperature Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 114 | 1 | Condenser Pressure Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 115 | 1 | Remote Setpoint Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 116 | 1 | Auxiliary 1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 117 | 1 | Auxiliary 2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 118 | 1 | Auxiliary 3 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 119 | 1 | Auxiliary 4 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 120 | 1 | Auxiliary 5 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 121 | 1 | Auxiliary 6 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 122 | 1 | Auxiliary 7 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 123 | 1 | Auxiliary 8 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 124 | 1 | Auxiliary 9 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 125 | 1 | Auxiliary 10 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 126 | 1 | Auxiliary 11 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 127 | 1 | Auxiliary 12 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 128 | 1 | Auxiliary 13 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 129 | 1 | Auxiliary 14 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 130 | 1 | Auxiliary 15 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 131 | 1 | Auxiliary 16 Analog Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 200 | 1 | Compressor VFD (mA) Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 201 | 1 | Condenser VFD Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 202 | 1 | Slide Valve Output Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 203 | 1 | Liquid Injection Motorized Valve Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 204 | 1 | Auxiliary Output #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 205 | 1 | Auxiliary Output #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 206 | 1 | Auxiliary Output #3 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 207 | 1 | Auxiliary Output #4 Calculated Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 250 | 1 | Filter Differential Pressure Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 251 | 1 | Start Oil Pressure Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 252 | 1 | Run Oil Pressure Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 253 | 1 | Pressure Ratio Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 254 | 1 | Volume Ratio Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 255 | 1 | Superheat Discharge Temp Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 256 | 1 | Superheat Suction Temp Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 257 | 1 | Superheat Oil Sep. Temp Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 258 | 1 | Compressor VFD RPM | Int16 | - | 1 | R |
| 259 | 1 | Compressor Run Capacity % | Int16 | % | 1 | R |
| 260 | 1 | Liquid Pressure Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 261 | 1 | Switch Pressure Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 262 | 1 | Orifice Loss Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 400 | 1 | Anti-Recycle Time (Minutes) | Int16 | - | 1 | R |
| 401 | 1 | Compressor Status Enumerated: 0 = Stop. | Int16 | - | 1 | R |
| 410 | 1 | Current Run Mode Enumerated: 0 = Idle. | Int16 | - | 1 | R |
| 412 | 1 | Oil Pump Status | Int16 | - | 1 | R |
| 413 | 1 | Oil Pump Operation Enumerated: 0 = No Pump. | Int16 | - | 1 | R |
| 414 | 1 | Compressor Model Enumerated: 0 = VSR. | Int16 | - | 1 | R |
| 415 | 1 | Refrigerant Enumerated: 0 = R12. | Int16 | - | 1 | R |
| 416 | 1 | Runtime Hours (x1000) | Int16 | - | 1 | R |
| 417 | 1 | Runtime Hours (1-999) | Int16 | - | 1 | R |
| 418 | 1 | Remote Lock Mode | Int16 | - | 1 | R |
| 500 | 1 | Alarm Reset | Int16 | - | 1 | RW |
| 501 | 1 | Active Remote Control Enumerated: 0 = None (Local). | Int16 | - | 1 | RW |
| 502 | 1 | Remote Capacity Control Select Enumerated: 0 = Auto Capacity. | Int16 | - | 1 | RW |
| 503 | 1 | Auto Capacity Control Type Enumerated: 0 = Suction Pressure. | Int16 | - | 1 | RW |
| 504 | 1 | Remote Pulse Load Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 505 | 1 | Remote Pulse Unload Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 506 | 1 | Capacity Hold % | Int16 | % | 1 | RW |
| 507 | 1 | Active Setpoint Enumerated: 1 = Setpoint 1. | Int16 | - | 1 | RW |
| 508 | 1 | Start Command | Int16 | - | 1 | RW |
| 509 | 1 | Stop Command | Int16 | - | 1 | RW |
| 510 | 1 | Auto-Cycle Enable/Disable | Int16 | - | 1 | RW |
| 511 | 1 | Pumpdown Enable/Disable | Int16 | - | 1 | RW |
| 512 | 1 | Pulldown Enable/Disable | Int16 | - | 1 | RW |
| 513 | 1 | Force to local control | Int16 | - | 1 | RW |
| 550 | 1 | Setpoint #1 (Suct. Press, Proc Control, Disch. Press) Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 551 | 1 | Cap Inc Time Interval Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 552 | 1 | Cap Inc Proportional Band Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 553 | 1 | Cap Dec Time Interval Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 554 | 1 | Cap Dec Proportional Band Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 555 | 1 | Setpoint #2 (Suct. Press, Proc Control, Disch. Press) Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 556 | 1 | Cap Inc Time Interval Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 557 | 1 | Cap Inc Proportional Band Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 558 | 1 | Cap Dec Time Interval Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 559 | 1 | Cap Dec Proportional Band Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 560 | 1 | Cap Inc Pulse Time Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 561 | 1 | Cap Inc Dead Band Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 562 | 1 | Cap Dec Pulse Time Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 563 | 1 | Cap Dec Dead Band Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 564 | 1 | Cap Inc Pulse Time Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 565 | 1 | Cap Inc Dead Band Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 566 | 1 | Cap Dec Pulse Time Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 567 | 1 | Cap Dec Dead Band Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 570 | 1 | Start(Suct. Press/Proc Control/Disch. Press) Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 571 | 1 | Start Delay Time Setpoint #1 | Int16 | - | 1 | RW |
| 572 | 1 | Stop(Suct. Press/Proc Control/Disch. Press) Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 573 | 1 | Stop Delay Time Setpoint #1 | Int16 | - | 1 | RW |
| 574 | 1 | Minimum Slide Position Setpoint #1 | Int16 | - | 1 | RW |
| 575 | 1 | Start(Suct. Press/Proc Control/Disch. Press) Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 576 | 1 | Start Delay Time Setpoint #2 | Int16 | - | 1 | RW |
| 577 | 1 | Stop(Suct. Press/Proc Control/Disch. Press) Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 578 | 1 | Stop Delay Time Setpoint #2 | Int16 | - | 1 | RW |
| 579 | 1 | Minimum Slide Position | Int16 | - | 1 | RW |
| 590 | 1 | Stop Pressure Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 591 | 1 | Stop Delay Time Setpoint #1 (seconds) | Int16 | - | 1 | RW |
| 592 | 1 | Minimum Slide Position Setpoint #1 | Int16 | - | 1 | RW |
| 593 | 1 | Stop Pressure Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 594 | 1 | Stop Delay Time Setpoint #2 (seconds) | Int16 | - | 1 | RW |
| 595 | 1 | Minimum Slide Position Setpoint #2 | Int16 | - | 1 | RW |
| 596 | 1 | Pumpdown Operation | Int16 | - | 1 | RW |
| 600 | 1 | Step Pressure Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 601 | 1 | Delay Per Step (hours) Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 602 | 1 | Stop Pressure Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 603 | 1 | Auto Cycle Differential Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | RW |
| 604 | 1 | Initiate Pulldown at Next Start | Int16 | - | 1 | RW |
| 605 | 1 | Initiate Pulldown at Every Start Stop Load & Force | Int16 | - | 1 | RW |
| 610 | 1 | High Motor Amps Stop Load Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 611 | 1 | High Motor Amps Force Unload Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 612 | 1 | High Disch Press Stop Load Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 613 | 1 | High Disch Press Force Unload Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 614 | 1 | Low Suct Press Stop Load Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 615 | 1 | Low Suct Press Force Unload Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 616 | 1 | High Motor Amps Stop Load Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 617 | 1 | High Motor Amps Force Unload Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 618 | 1 | High Disch Press Stop Load Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 619 | 1 | High Disch Press Force Unload Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 620 | 1 | Low Suct Press Stop Load Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 621 | 1 | Low Suct Press Force Unload Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 622 | 1 | Liquid Inj. Setpoint Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 623 | 1 | Dual Liquid Inj. Enabled | Int16 | - | 1 | R |
| 624 | 1 | Liquid Inj. Open % Value is transmitted as ten times the engineering value (F-INT). | Int16 | % | 0.1 | R |
| 625 | 1 | Liquid Inj. Oil Sep. Temp. Override Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 626 | 1 | Liquid Inj. Motorized Valve Gain (P) Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 627 | 1 | Liquid Inj. Motorized Valve Reset (I) Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 628 | 1 | Liquid Inj. Motorized Valve Rate (D) Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 629 | 1 | Minimum Valve Open Enabled | Int16 | - | 1 | R |
| 630 | 1 | Avg. With Oil Manifold Temperature | Int16 | - | 1 | R |
| 631 | 1 | High Discharge Superheat Stop Load Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 632 | 1 | High Discharge Superheat Force Unload Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 633 | 1 | High Discharge Superheat Stop Load Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 634 | 1 | High Discharge Superheat Force Unload Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 635 | 1 | Dual Liquid Inj. Slide % Value is transmitted as ten times the engineering value (F-INT). | Int16 | % | 0.1 | R |
| 636 | 1 | Dual Liquid Inj. Valve Loss Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 637 | 1 | Dual Liquid Inj. Safety Loss Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 638 | 1 | Dual Liquid Inj. Port Selection Enumerated: 0 = Low-Medium. | Int16 | - | 1 | R |
| 640 | 1 | Slide Valve Setpoint #1 | Int16 | - | 1 | R |
| 641 | 1 | Slide Valve Setpoint #2 | Int16 | - | 1 | R |
| 642 | 1 | Slide Valve Setpoint #1 Enabled | Int16 | - | 1 | R |
| 643 | 1 | Slide Valve Setpoint #2 Enabled | Int16 | - | 1 | R |
| 644 | 1 | Oil Pump Press. Restart Ratio SP 1 (ON) Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 645 | 1 | Oil Pump Press. Restart Ratio SP 1 (OFF) Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 646 | 1 | Oil Sep. Heater Temp Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 647 | 1 | Volume Slide Adjustment % | Int16 | % | 1 | R |
| 648 | 1 | Soft Load % | Int16 | % | 1 | R |
| 649 | 1 | Capacity Range Min % Value is transmitted as ten times the engineering value (F-INT). | Int16 | % | 0.1 | R |
| 650 | 1 | Capacity Range Max % Value is transmitted as ten times the engineering value (F-INT). | Int16 | % | 0.1 | R |
| 651 | 1 | Rate Deadband Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 652 | 1 | Enable Load Anticipating Algorithm | Int16 | - | 1 | R |
| 653 | 1 | Economizer Port 2 Setpoint | Int16 | - | 1 | R |
| 654 | 1 | Oil Injection Temperature Override Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 655 | 1 | Slide Valve Setpoint #1 State Below Setpoint | Int16 | - | 1 | R |
| 656 | 1 | Slide Valve Setpoint #2 State Below Setpoint | Int16 | - | 1 | R |
| 657 | 1 | No Oil Pump Pressure Ratio Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 658 | 1 | No Oil Pump Load Limit % Value is transmitted as ten times the engineering value (F-INT). | Int16 | % | 0.1 | R |
| 659 | 1 | Oil Pump Press. Restart Ratio SP 2 (ON) Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 660 | 1 | Oil Pump Press. Restart Ratio SP 2 (OFF) Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 661 | 1 | Filter In and Filter Out Average | Int16 | - | 1 | R |
| 670 | 1 | VFD Gain (P) Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 671 | 1 | VFD Reset (I) Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 672 | 1 | VFD Rate (D) Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 673 | 1 | Step 1 VFD Minimum Slide Position | Int16 | - | 1 | R |
| 674 | 1 | Step 1 VFD Maximum Slide Position | Int16 | - | 1 | R |
| 675 | 1 | Step 1 VFD Minimum Speed (rpm) | Int16 | - | 1 | R |
| 676 | 1 | Step 1 VFD Maximum Speed (rpm) | Int16 | - | 1 | R |
| 677 | 1 | 2 Step VFD Control Enabled | Int16 | - | 1 | R |
| 678 | 1 | Step 2 VFD Minimum Slide Position | Int16 | - | 1 | R |
| 679 | 1 | Step 2 VFD Maximum Slide Position | Int16 | - | 1 | R |
| 680 | 1 | Step 2 VFD Minimum Speed (rpm) | Int16 | - | 1 | R |
| 681 | 1 | Step 2 VFD Maximum Speed (rpm) | Int16 | - | 1 | R |
| 682 | 1 | Rapid Cycling VFD Minimum Speed (rpm) | Int16 | - | 1 | R |
| 683 | 1 | Rapid Cycling VFD Maximum Speed (rpm) | Int16 | - | 1 | R |
| 684 | 1 | Warm up Timer Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 685 | 1 | Oil Restriction Setpoint (rpm) | Int16 | - | 1 | R |
| 686 | 1 | Oil Restriction Offset (rpm) | Int16 | - | 1 | R |
| 687 | 1 | Oil Restriction Solenoid State Below Setpoint Cool | Int16 | - | 1 | R |
| 700 | 1 | Auto Load Enabled | Int16 | - | 1 | R |
| 701 | 1 | Auto Load @ Start | Int16 | - | 1 | R |
| 702 | 1 | Auto Load Timer (mins) Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 703 | 1 | SOI Solenoid ON Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 704 | 1 | SOI Solenoid OFF Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 705 | 1 | SOI Load Limit | Int16 | - | 1 | R |
| 706 | 1 | High Press Ratio Solenoid Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 707 | 1 | High Press Ratio Solenoid Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 708 | 1 | Start SP Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 709 | 1 | Linear SP Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 710 | 1 | Upper SP Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 711 | 1 | Max SP Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 712 | 1 | Start Level | Int16 | - | 1 | R |
| 713 | 1 | Leakage | Int16 | - | 1 | R |
| 714 | 1 | Overfill Leakage | Int16 | - | 1 | R |
| 720 | 1 | VI Control Method Enumerated: 0 = Fixed VI. | Int16 | - | 1 | R |
| 721 | 1 | Time Interval | Int16 | - | 1 | R |
| 722 | 1 | Minimum VI Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 723 | 1 | Maximum VI Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 724 | 1 | Deadband Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 725 | 1 | Step 1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 726 | 1 | Step 2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 727 | 1 | Step 3 Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 750 | 1 | Low Suction Press. Alarm Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 751 | 1 | Low Suction Press. Trip Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 752 | 1 | High Disch. Press. Alarm Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 753 | 1 | High Disch. Press. Trip Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 754 | 1 | High Proc. Temp. Alarm Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | RW |
| 755 | 1 | Low Proc. Temp. Alarm Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | RW |
| 756 | 1 | Low Proc. Temp. Trip Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | RW |
| 757 | 1 | Low Suction Press. Alarm Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 758 | 1 | Low Suction Press. Trip Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 759 | 1 | High Disch. Press. Alarm Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 760 | 1 | High Disch. Press. Trip Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 761 | 1 | High Proc. Temp. Alarm Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | RW |
| 762 | 1 | Low Proc. Temp. Alarm Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | RW |
| 763 | 1 | Low Proc. Temp. Trip Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | RW |
| 764 | 1 | Low Proc. Pressure Alarm Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 765 | 1 | Low Proc. Pressure Trip Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 766 | 1 | High Proc. Pressure Alarm Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 767 | 1 | High Proc. Pressure Trip Setpoint #1 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 768 | 1 | Low Proc. Pressure Alarm Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 769 | 1 | Low Proc. Pressure Trip Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 770 | 1 | High Proc. Pressure Alarm Setpoint #2 Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 771 | 1 | High Proc. Pressure Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 800 | 1 | Low Suction Temp. Alarm Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | RW |
| 801 | 1 | Low Suction Temp. Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | RW |
| 802 | 1 | High Disch. Temp. Alarm Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 803 | 1 | High Disch. Temp. Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 804 | 1 | Low Oil Sep. Start Temp. Alarm Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 805 | 1 | Low Oil Sep. Start Temp. Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 806 | 1 | Low Oil Sep. Run Temp. Alarm Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 807 | 1 | Low Oil Sep. Run Temp. Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 808 | 1 | Low Oil Inj. Temp Alarm Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 809 | 1 | Low Oil Inj. Temp Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 810 | 1 | High Oil Inj. Temp Alarm Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 811 | 1 | High Oil Inj. Temp Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 812 | 1 | High Oil Separator Temp Alarm Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 813 | 1 | High Oil Separator Temp Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | R |
| 814 | 1 | High Superheat Start Temp Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | RW |
| 815 | 1 | High Superheat Run Temp Alarm Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | RW |
| 816 | 1 | High Superheat Run Temp Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | RW |
| 817 | 1 | High Superheat Start Offset Temp Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | RW |
| 818 | 1 | Low Suction Superheat Temp Alarm Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | RW |
| 819 | 1 | Low Suction Superheat Value is transmitted as ten times the engineering value (F-INT). | Int16 | °F | 0.1 | RW |
| 830 | 1 | Prelube Oil Pressure Alarm Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 831 | 1 | Prelube Oil Pressure Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 832 | 1 | Run Oil Pressure Alarm Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 833 | 1 | Run Oil Pressure Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 834 | 1 | High Filter Diff. Start Press. Alarm Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 835 | 1 | High Filter Diff. Start Press. Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 836 | 1 | High Filter Diff. Run Press. Alarm Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 837 | 1 | High Filter Diff. Run Press. Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 838 | 1 | High Motor Amps Alarm Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 839 | 1 | High Motor Amps Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | - | 0.1 | R |
| 840 | 1 | Low Run Pressure Ratio Alarm Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 841 | 1 | Low Run Pressure Ratio Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | RW |
| 842 | 1 | Start Oil Pressure Stage 1 Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 843 | 1 | Start Oil Pressure Stage 2 Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 844 | 1 | Oil Over Pressure Trip Value is transmitted as ten times the engineering value (F-INT). | Int16 | psig | 0.1 | R |
| 900 | 1 | Capacity Increase Start Delay (seconds) | Int16 | - | 1 | R |
| 901 | 1 | Minimum Comp. Prelube Time (seconds) | Int16 | - | 1 | R |
| 902 | 1 | Low Oil Pressure Bypass Timer (seconds) | Int16 | - | 1 | R |
| 903 | 1 | High Filter Diff. Pressure Changeover Timer (seconds) | Int16 | - | 1 | R |
| 904 | 1 | Compressor Interlock Bypass Timer (seconds) | Int16 | - | 1 | R |
| 905 | 1 | Low Oil Sep. Temp. Changeover Timer (minutes) | Int16 | - | 1 | R |
| 906 | 1 | Low Oil Injection Bypass Timer (minutes) | Int16 | - | 1 | R |
| 907 | 1 | High Motor Amps Safety Bypass (seconds) | Int16 | - | 1 | R |
| 908 | 1 | Restart After Power Failure Timer (minutes) | Int16 | - | 1 | RW |
| 909 | 1 | Hot Starts Per Hour | Int16 | - | 1 | RW |
| 910 | 1 | True Anti-Recycle Timer (minutes) | Int16 | - | 1 | RW |
| 911 | 1 | Accumulative Anti-Recycle Timer (minutes) | Int16 | - | 1 | RW |
| 912 | 1 | Oil Level #1 Trip Delay (seconds) | Int16 | - | 1 | R |
| 913 | 1 | Oil Level #2 Trip Delay (seconds) | Int16 | - | 1 | R |
| 914 | 1 | Low Pressure Ratio Bypass Timer (seconds) | Int16 | - | 1 | R |
| 915 | 1 | Emergency Stop Timer (minutes) | Int16 | - | 1 | R |
| 916 | 1 | Low Suction Pressure Safety Bypass (seconds) | Int16 | - | 1 | R |
| 917 | 1 | High Superheat Temp Changeover Timer (minutes) | Int16 | - | 1 | R |
| 918 | 1 | Prelube Oil Pressure Monitor Time (seconds) | Int16 | - | 1 | R |
| 919 | 1 | Prelube Oil Pressure Monitor Trials | Int16 | - | 1 | R |
| 920 | 1 | Prelube Oil Pressure Changeover Timer (seconds) | Int16 | - | 1 | R |
| 921 | 1 | Communication Failure Detect Timer (minutes) | Int16 | - | 1 | R |
| 922 | 1 | Start Oil Pressure Stage 1 Timer (seconds) | Int16 | - | 1 | R |
| 923 | 1 | Start Oil Pressure Stage 2 Timer (seconds) | Int16 | - | 1 | R |
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Notes
Source: Emerson/Vilter "Vission 20/20 Micro-controller - Operation and Service Manual", 35391SC Version 2.9, Appendix D "Vission 20/20 Communication Table", Table D-1 (pages D-2 to D-14), served by the vendor at https://vission2020.net/downloads/ and mirrored on copeland.com. Table D-1 notes state "Modbus TCP addressing is PLC-style (Base 1) addressing" and print the registers as 40001-based references, so this file stores the register number (40001 -> 1) and declares one_based addressing; the seed covers the table's Digital Inputs, Digital Outputs, Analog Inputs, Analog Outputs, Calculated Values, Statuses, Commands, compressor-control, stop-load, slide-valve and Timer blocks. The compressor-scheduling (military time), trend-chart and configuration blocks further down Table D-1 are not included, and nor are the status-word registers 402-409 and 411, whose bit assignments are printed in the notes pages after the table rather than in its rows. The same notes give the formats: every register is a 2-byte INT, F-INT values are "INT types multiplied by 10" (hence scale 0.1), all pressures are in psig and all temperatures in Fahrenheit, and ENUM values are INT. The panel's Modbus server reports only "Illegal Data Address" on error. No factory unit identifier is documented for the Modbus TCP server, so unit_id 1 is a placeholder and the user must set whatever node identifier the panel expects.