I tried the test program and the CP4 com ports seem to be fine.Also the serial settings on the G7500 are as they should be.Could the issue be the G7500 serial port?Has anyone encountered this kind of scenario?
On Wed, May 14, 2025, 20:26 igor.pero.bauer via <igor.pero.bauer=
[email protected]> wrote:
you can try with a test program you'll load into an unused slot, just stop and unregister the program currently talking to COM 1 and 2. then cross-connect ports 1 and 2, Rx to Tx and vice versa, and try sending some strings back and forth to see if they are getting through. I have so far seen a fair number of fried COM ports on controllers, so you may be looking at that.
also, check if the polycom had a firmware update pushed to it which disabled serial communication or messed with the parameters.
