Do as geniusintraining suggests and make a new program with 1 button and work on getting that to work with you bench PLC. Write one simple line of code in PLC and work from there to get single button on HMI to communicate. I use the Weinview all the time and have no issues although I connect to AB mostly Ethernet, I swapped a Maple Systems out and used the easy convert to put same program in Weinview and it was pin compatible with cable they had going to Siemens