CIMPLICITYMode Diagnostic Points
You can create a mode point for each physical redundant PLC. The point contains the following information:
| Description | Bit | Value |
| Device health | 1 | 1 = device OK |
| Current active CPU Status | 2 3 | 1 = current active 1 = CPU is running |
The first and second bits contain the mode information from the programmable controller. The mode address is defined in the Mode Address field on the TCP/IP tab in the Port Properties dialog box when you create the port.
The third bit indicates the status of the CPU. The CPU is considered to be not in run mode if its state is any of the following:
- STOP_IO_DISABLED
- CPU_STOP_FAULTED
- CPU_HALTED
- CPU_SUSPENDED
- STOP_IO_ENABLED
The addresses for the Mode diagnostic points are:
| $MODE_P1 ??Mode Point | Primary PLC?? |
| $MODE_P2 ??Mode Point | Secondary PLC?? |
| $MODE_P3 ??Mode Point | Third PLC?? |
