Communicating to and A1s via a E710

[Bizzel]

I am trying to communicate to a Mitsubishi A1s via a E710 hmi. I can communicate to either one separately, but when trying to communicate through the HMI to the PLC, I just get a COM's fault. The fault states that the communication speed and the PLC speed are different (I can't recall the exact message).

I have the PLC and HMI speeds both at 9600.
I am using the transparency mode.

Could anyone offer suggestions as to what I am doing wring to communicate to the PLC via the HMI?

Thanks