Jonas: Created page with "=== Dependency on TwinCAT-IO for S7-SoftPLC service === If the S7-SoftPLC is started as service and uses the TwinCAT-IO-driver, it may happen that the S7-SoftPLC is loaded pr..."

2013-01-17T07:25:14Z

Created page with "=== Dependency on TwinCAT-IO for S7-SoftPLC service === If the S7-SoftPLC is started as service and uses the TwinCAT-IO-driver, it may happen that the S7-SoftPLC is loaded pr..."

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=== Dependency on TwinCAT-IO for S7-SoftPLC service ===

If the S7-SoftPLC is started as service and uses the TwinCAT-IO-driver, it may happen that the S7-SoftPLC is loaded prior to TwinCAT-IO and therefore can't use the IO-driver. The PLC stops and must be restarted manual.

To prevent this, the service must have a dependency on TwinCAT-IO.

Therefore open the regedit and add the value <code>"TwinCAT System Service"</code> to the key <code>"DependOnService"</code> located at

<code>HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\CPUS7</code>

The service will now be started, after the service "TwinCAT System Service" is running.

S7-SoftPLC:S7-SoftPLC Service and TwinCat - Revision history

Jonas: Created page with "=== Dependency on TwinCAT-IO for S7-SoftPLC service === If the S7-SoftPLC is started as service and uses the TwinCAT-IO-driver, it may happen that the S7-SoftPLC is loaded pr..."