Q. I have a new CoProcessor module and I can't communicate with it, what's wrong?
A. The module is shipped from the factory in AUTOSTART mode 3, which means that after power up it you must send it a space bar character first thing after power up.

Q. How do I read/write data to the PLC CPU?
A. Use the S205_ or BMOVE and SHARED instructions. The F2-CP-M manual contains details on these instructions.

Q. I'm just getting started with this F2-CP128 but I keep getting the error 'PLC CPU COMM Time-Out' error then the module resets.
A1. This error can be caused if the F2-CP128 is in slot 0 (right beside the CPU) and a S205_ or BMOVE instruction is executed. The F2-CP128 can only be in slot 1 and greater.
A2. This error can be caused if the CLR ALL jumper is installed on the F2-CP128 and a S205_ or BMOVE instruction is executed. The CLR ALL jumper should be removed for normal operation. See the F2-CP-M manual for details about this jumper.
A3. There is a problem with the backplane interface. F2-CP128 can be damaged by installing or removing it while the base is powered up. The slot the module is installed in could be damaged. The base the module is installed in could be damaged. The CPU backplane interface could be damaged. Some other module in the base has a damaged backplane interface that is interfering with bus communications.

Q. I programmed port 3 for 19200 baud but it's not working, why not?
A. The maximum baud rate for port 3 is 9600 baud.