In a Modbus network, one device acts as the master, and multiple devices act as slaves. The master device initiates transactions, while the slave devices respond to the master's requests. The master can read data from or write data to the slaves. Modbus uses a simple, ASCII-based protocol for data transmission, making it easy to implement and integrate with various devices.
Requests data, polls devices, and sends commands. modbus slave registration key
Function 23 (useful for complex WAGO nodes). Best Practices for Modbus Slave Implementation In a Modbus network, one device acts as