Hi Gary!
Obviously at the flash settings of CCS all flash partitions (A-H) were installed for erase. This is not problem. Why do you want to use bin-format exactly (which is used by flashing procedure of zero configuration gui)? For flashing procedure of modems I would recommend you applay C2Prog Code Skin (hex -format) or CCS (out-format). By the way when you need to flash the firmware for bouth modems at once (during the work with your PLC-project) the use of C2Prog is very convenient (you connect bouth modems to PC and just choose needed port at "Configurate port" option).
Regards,
Igor
