Symptom:
I am running LogicMaster (or GE-Fanuc) under WinXP and am having problems connecting from a non-Digi USB/232 adapter to a Series 90 Micro PLC going through an SNP adapter.
When I switch from offline to monitor the LED indications on the USB/232 adapter that LogicMaster90 is using to communicate with the Micro PLC, LogicMaster90 displays no communications. However, this does work off my system running Windows 2000.
Cause:
To initiate an SNP communications session the PLC expects a "Long Break" to come across the serial interface, which many non-Digi USB/232 products fail to do.
Solution:
The Digi Edgeport USB serial product has been tested in this environment and does work.
Last updated:
Jul 09, 2019