Help me Idec FA2J

[oscarx]

I have the CPU FA2J, the problem is sometimes the clock scan of 1 sec is extended to 5 sec, causing fault in the process, the plc have connect to scada Intouch.

PLEASE HELP ME

 

[Tresco-oz]

Are you saying that the PLC total scan time changes from 1 sec to 5 sec ?
- even 1 sec seems quite long for an FA2J.
Or is it a PLC timer that is changing from 1 sec to 5 seconds ?

 

[oscarx]

M0314 is the flag memory clock of 1 sec, that is every 1 sec is ON, sometimes this flag every 5 sec is ON.

 

[Tresco-oz]

Are you seeing the 5 sec happen through your Intouch graphics?
Or are you watching it directly at the PLC (ie via an output)
- it may just be an Intouch scan-rate issue.

Try driving an output via M314 & watch the output LED - does it ever stay on or off for 5 sec ?

 

[oscarx]

I am connected ONLINE with program WINLDR, also the scan of the modules multiplexor Analog Input is very slow.

 

[Tresco-oz]

It could still be a PC-PLC comms update issue
Try driving an output via M314 & watch the output LED - does it ever stay on or off for 5 sec ?