J
We have received one alarm in our AB PLC (PLC-5 Processor 1785-L40C15) 'Adaptor # 3 Fault' and persisting in alarm page. In panel Adapter # 3 (1794-ACNR15)all the LEDs are healthy. (COM A&B, Status LED are green and steady) Our system is redundant system, processor and all the IOs, Node 3 is main and Node 4 is redundant.
After receiving this alarm some of the solenoid-operated valves are not operating properly because the valve feed backs are not changing in the data table. Toggle the signal from Ladder logic, valve is operating, input module status is matching with field but in the data file it is not changing.
Is it Adapter fault or any other fault? Becoz the LEDs confusing
Is it safe to change the Control net redundant adapter on line ?
Rest of the process is running well except the NODE 3 & 4
Kindly help us to solve this problem.
Thanks in advance.
Joysha
After receiving this alarm some of the solenoid-operated valves are not operating properly because the valve feed backs are not changing in the data table. Toggle the signal from Ladder logic, valve is operating, input module status is matching with field but in the data file it is not changing.
Is it Adapter fault or any other fault? Becoz the LEDs confusing
Is it safe to change the Control net redundant adapter on line ?
Rest of the process is running well except the NODE 3 & 4
Kindly help us to solve this problem.
Thanks in advance.
Joysha