modport:modport_module_starting_address_and_rtu_function_codes:index
Table of Contents
Module Slave Address, Starting Address, and Function Codes
All values below are given in base 10.
Input Modules
| Start Address | Product name | Supported Modbus Function Codes |
|---|---|---|
| 0-7 | MD-DIDC8 DC Input | 1 |
| 100-103 | MD-ADIN4 AD Input | 3 |
| 200-207 | MD-HADIN4 High Resolution AD Input | 3 |
| 300-303 | MD-THRT4 RTD Temperature Input | 3 |
Output Modules
| Start Address | Prodcut name | Supported Modbus Function Codes |
|---|---|---|
| 3000-3007 | MD-DOSO8 DC Source Output | 1, 5, 15 |
| 3100-3107 | MD-DOSI8 DC Sink Output | 1, 5, 15 |
| 3200-3207 | MD-DORL8 Relay Output | 1, 5, 15 |
| 3300-3301 | MD-DAOUT2 AD Output (Voltage) | 3, 6, 16 |
| 3400-3401 | MD-DAOUT2B AD Output (Current) | 3,6, 16 |
- Baud Rate: 57600, Data Bits: 8, Parity: None, Stop Bits: 1
- MODBUS RTU protocol
- Broadcast mode not supported
Module ID (Modbus Slave Address) Assignment
Each module can have a different slave address set using the rotary switch on the face of the module. This provides the ability to have as many as 10 modules of the same type installed simultaneously. When installing multiple modules of the same type, the ID for each module should be unique.
Rotary switch positions 1 ~ 9 correspond to Modbus slave address 1 ~ 9 respectively. Rotary switch position 0 corresponds to Modbus address 10.
If the ID is changed after the module is powered on, it must be power cycled for the new ID to take effect.
modport/modport_module_starting_address_and_rtu_function_codes/index.txt · Last modified: by 127.0.0.1