Advantech · Remote I/O
ADAM-4050 / ADAM-4050-F (15/16-channel digital I/O) Modbus register map
Default configuration
- Protocol
- RS485
- Port
- 502
- Unit ID
- 1
- Addressing
- 0-based
- Byte order
- Big endian
- Word order
- High word first
- Baud rate
- 9600
- Parity
- None
- Data bits
- 8
- Stop bits
- 1
This device has an RS-485 interface. Reach it through a Modbus RTU-to-TCP gateway, configured with the factory serial settings above.
Register map
| Address | Count | Name | Type | Unit | Scale | Access |
|---|---|---|---|---|---|---|
| 0 | 1 | Digital input 0 signal 0 = off, 1 = on (coil reference 00001). | Binary | - | 1 | R |
| 1 | 1 | Digital input 1 signal 0 = off, 1 = on (coil reference 00002). | Binary | - | 1 | R |
| 2 | 1 | Digital input 2 signal 0 = off, 1 = on (coil reference 00003). | Binary | - | 1 | R |
| 3 | 1 | Digital input 3 signal 0 = off, 1 = on (coil reference 00004). | Binary | - | 1 | R |
| 4 | 1 | Digital input 4 signal 0 = off, 1 = on (coil reference 00005). | Binary | - | 1 | R |
| 5 | 1 | Digital input 5 signal 0 = off, 1 = on (coil reference 00006). | Binary | - | 1 | R |
| 6 | 1 | Digital input 6 signal 0 = off, 1 = on (coil reference 00007). | Binary | - | 1 | R |
| 7 | 1 | Digital input 7 signal 0 = off, 1 = on (coil reference 00008). | Binary | - | 1 | R |
| 16 | 1 | Digital output 0 value 0 = off, 1 = on (coil reference 00017). | Binary | - | 1 | RW |
| 17 | 1 | Digital output 1 value 0 = off, 1 = on (coil reference 00018). | Binary | - | 1 | RW |
| 18 | 1 | Digital output 2 value 0 = off, 1 = on (coil reference 00019). | Binary | - | 1 | RW |
| 19 | 1 | Digital output 3 value 0 = off, 1 = on (coil reference 00020). | Binary | - | 1 | RW |
| 20 | 1 | Digital output 4 value 0 = off, 1 = on (coil reference 00021). | Binary | - | 1 | RW |
| 21 | 1 | Digital output 5 value 0 = off, 1 = on (coil reference 00022). | Binary | - | 1 | RW |
| 22 | 1 | Digital output 6 value 0 = off, 1 = on (coil reference 00023). | Binary | - | 1 | RW |
| 23 | 1 | Digital output 7 value 0 = off, 1 = on (coil reference 00024). | Binary | - | 1 | RW |
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Related guides
Notes
RS-485 remote I/O: the module reaches Modbus Connect through a Modbus RTU-to-TCP gateway, and the serial block holds the factory settings the gateway must use. Addressing: the manual's Modbus mapping table prints Modbus reference numbers ("ADDR 0X" 00001..., "ADDR 4X" 40001...) and this seed stores the equivalent zero-based wire addresses (reference minus one), as the ADAM-6000 seeds in this library do. Source: Advantech "ADAM-4000 Series User Manual" Ed.9 (2023), Appendix G.1 "ADAM-4000 I/O Modbus Mapping Table", item 7 "ADAM-4050 15 or *16-ch Digital I/O Module" (manual page 268); factory communication settings from chapter 2.2 "Default Factory Settings" (baud rate 9600 bit/s, address 01 hexadecimal) and Appendix H.1 (initial COM settings 9600 baud, N-8-1). The ADAM-4050 has seven digital inputs and eight digital outputs; the eighth input (channel 7) exists only on the ADAM-4050-F, as the table's footnote "* New Input for ADAM-4050-F" states. The module has no analog channels and no counter block in this map. A Modbus-version module can leave the factory set to the ADAM ASCII protocol; Appendix H.1 documents switching it to Modbus with the Adam/Apax .NET utility before the map above applies.