after successful command the TIMEOUT bit by response variable stays on

Summary

When before the command the RV has already the same value as CO variable, and when RV has TIMEOUT status bit, then after successfully terminated execute - the RV variable keeps the TIMEOUT bit.

Description

When before the command the RV has already the same value as CO variable, and when RV has TIMEOUT status bit, then after successfully terminated execute - the RV variable keeps the TIMEOUT bit.

Solution

Now on start of a command the TIMEOUT bit on the response variable is always set back

Information

Issue Number: 29942
Fixed on Date: 1.12.2014
Versions: 7.20 0 BUILD 17768

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after successful command the TIMEOUT bit by response variable stays on

after successful command the TIMEOUT bit by response variable stays on

Summary

Description

Solution

Information

Related Articles

When in Command Processing by an action 'Timeout can be canceled' is activated then the NET_SEL status bit stays set for additional Timeout after action execution is completed.

Command Processing action switch-/pulse-command when Direction="none" by activated 'Watchdog timer' always waits action Timeout and then sets TIMEOUT status bit.

While a command action waits on Select response from PLC another actions - for other RV - can be executed only once - then NET_SEL stays and locks.

When PLC is not responding the Select command the action is not breaking by ‘Timeout for SBO activation’ and keeps waiting on Select response.

In Watchdog timer 'none' and SBO the command action resets PROGRESS bit first when COT_actterm (10) comes or action timeout is elapsed.