Siemens SENTRON 3WA System Manual page 58

PROFINET IO
6.3 Metering values, addressing und data traffic
Control bytes
The control bytes for controlling the circuit breaker are always two bytes long. With these
control bytes, you can:
• Open/close the circuit breaker
• Acknowledge tripping events
Setting the outputs is edge-triggered. It suffices to set the corresponding bits for 0.5 s. After
this, these control bits must be reset to avoid subsequently triggering any undesired actions.
The table below contains a description of the control bytes:
Byte
n
n + 1
56
Bit Value 3WA circuit breaker
0 / 1 0 ... 3 Commands to close/open the circuit breaker
0 Not defined (no action)
1 Circuit breaker open (opening of main contacts)
2 Circuit breaker closed (closing of main contacts)
3 Not defined (no action)
2 – Acknowledge and reset currently active trip indication
3 – Not used
4 – Not used
5 – Not used
6 – Not used
7 – Not used
0 – Not used
1 – Not used
2 – Not used
3 – Reset all minimum/maximum value logs (except temperature)
4 – Reset minimum/maximum logs for temperatures
5 – Not used
6 – Not used
7 – Not used
3WA Air Circuit Breaker Communication
System Manual, 11/2021, 92310000004-02