You first establish a TCP connection between your "Command Station" (the Master) and the "Controlled Station" (the Slave/RTU).
Always log the User ID and Timestamp for every write command. In industrial settings, knowing who turned off a generator at 2:00 AM is critical. Summary Table: Common Write Commands Switching C_SC_NA_1 (45) Turning a light or motor on/off. Valve Control C_DC_NA_1 (46) Opening/Closing a water or gas valve. Setpoint C_SE_NC_1 (50) Setting a target temperature (float). Station — iec104-python 2.2 documentation write at command station v104
After writing, the V104 station waits for an from the RTU. If the station does not receive this, the "write" is considered failed. Best Practices for Command Station Management You first establish a TCP connection between your
Every "write" operation targets an . Think of this as the specific "mailbox" for a device component—for example, IOA 101 might be a power switch, while IOA 202 is a temperature threshold. 2. Command Types (ASDU) Station — iec104-python 2