Automation Direct DL05 PLC

[e_pramod]

I am working on the automation direct PLC DL05. I have problem on the timer instruction, Once the timer instruction becomes true & when reach to the preset value done bit become activated , but still timer increment continuously. Is it causing overflow fault?
Is it necessory to stop the timer by making rung condition false after done bit activated?

 

[testsubject]

It will not cause an overflow fault.

That would be correct. The timer will continue counting up until it reaches 9999 (assuming TMR) and then will stop but the T bit will stay on as long as the timer value is above the preset value. The timer is reset by turning the input off.

Bob

 

[elevmike]

It will not cause an overflow fault.

That would be correct. The timer will continue counting up until it reaches 9999 (assuming TMR) and then will stop but the T bit will stay on as long as the timer value is above the preset value. The timer is reset by turning the input off.

Bob

I will confirm Bob's answer as 100% correct.

 

[Eric Nelson]

I will confirm Bob's answer as 100% correct.

I'll give him 99.99% correct...

The T bit will stay on as long as the timer value is equal to or above the preset value.



-Eric

 

[AndyT]

This can come in handy sometimes because you can have multiable events off the same timer using relational contacts. Same with counters.

Andy