Hi,
I'm trying to get connection using siemens enhanced driver and symbolic access, however for some unknown reason getting AGL40-Timeout exception (Which suggests that PLC just don't answer the request). What is more interesting, when I switched from Symbolic to Absolute, suddenly connection was established and I was able to read data from PLC (but only in Absolut way). Is there any official document which describes the requirements which needs to be fulfilled like minimum firmware or ports which needs to be opened? I also tried different setting using secure/unsecure connections, PUT/GET access, different security setting but I was unable to set the connectivity.
The setup which I use:
Ignition 8.3.2 running in a docker container.
Siemens PLC Sim Advanced v6 with PLC firmware v3.1
The port is forwarded to plc's standard 102.
Best regards,
Bartosz
I’d start by upgrading to 8.3.5 and see if it just starts working.
You said the port is forwarded to the plc's port 102. Does the config of the device in ignition have a different port than 102?
Hi Marcus, yes the configured port in ignition is different then 102. I’m trying to connect to plc sim advanced which requires port forwarding to internal network. However I assume that network configuration is not a problem as I’m able to connect using absolut addressing with enhanced driver. Unfortunately symbolic access returns timeout exception. I would like to try latest and gratest ignition but it is not yet approved in my organization.
Best regards
This is a known issue with the underlying library used by the Siemens Enhanced driver - it forces port 102 for symbolic mode comms, even when something else is configured.
We've got a workaround releasing with 8.3.6 (and eventually the nightlies) while we wait for a real fix from the vendor.
For now, you'll have to use port 102.
Hi Kevin,
Thank you for the information about the known issue with forcing 102. Do you know maybe if the known issues list is available publicly?
Best regards,
Batosz