IM308c gives me an error "Incorrect Mode"

[AgfaPLC]

I am currently trying to set up an IM308c Profibus DP Module to use with an S5-135U system using two 928B processors in Multiprocessing mode. Module will only be accessed by one CPU and the slave is an ET200M (IM153-1). I am testing it along with the Standard Function block  FB192. When I execute to write outputs(WO) I get an error. The error is a value of 4 and in the ET200M Manual states "Incorrect Mode" (page 7-15) The remedy is switch the master to run. It is already in run with a green run light on. Does this card require synchronization like Sinec L2?  PLC does not see it in run apparently and I have no other info.