M310: LED-Blink-Codes

Requirements

 

RUN

BF

Meaning

 

M310: LED-Blink-Codes 1:

on

off

Operation state: RUN, Inputs are read  and outputs are set

off

blink at 10 Hz

STOP

blink at 10 Hz

off

TwinCAT is not started yet, all bus participants are running without errors (RUN)

off

on

RESET, OFFLINE  

RESET, OFFLINE

When switching power ON the M310 is  in RESET state. It switches to STOP state by starting TwinCAT. If TwinCAT is stopped or a critical bus error occurred the operation mode is switched to OFFLINE. If the unit is in OFFLINE state it has no activity on the fieldbus.

STOP

After the start of TwinCAT or during accessing the bus configuration via the system manager the B310 in in STOP state. The unit has bus activity but does not exchange data with other bus participants. During TwinCAT start or I/O-Reset the unit is in STOP mode. It switches to RUN state automatically, when initialization phase is completed.

RUN

In  RUN state the B310 unit starts to communicate with the project defined participants. If the TwinCAT task is started the data exchange takes place otherwise the unit starts reading and sending diagnostic data to the bus slaves. If the attached TwinCAT task is stopped (e.g. PLC STOP or breakpoint in PLC)  the unit switches to CLEAR mode (all outputs are set to 0 or the slave behaves as the PLC program defines this state). If the task is running again the unit switches back to OPERATE mode it automatically resume its work.