I have an AVG EZ3 HMI that i am using with an AllenBradley Micrologix 1200. It is a new setup plc program and HMI project. I can not get the HMI to communicate with the PLC. Im pretty sure it is just an issue with the way i have the communication parameters set. The Baud, Parity, Check sum, and Stop Bits are all the same. I have upgraded the firm ware, used 2 different cables (they came off working PLC's). The connector on the HMI is female and so is the cable end so i am using a gender bender to make the connection. Does anyone have any more ideas for me to check before i go insane? Any help would be appreciated. Thank you.