Schneider Electric Processor Adapter - Manual (Page 234)

Configuring an M1 CPU with Modsoft
234 870 USE 101 10 V.2
Parameters Which Should Not Be Changed
Overview Two parameters on the Port editor screen should not be changed. These are the
stop bit and head-slot parameters.
Stop Bit Each port operates only with 1 stop bit. While Modsoft will allow you to select 2 stop
bits, this setting is invalid.
Head-Slot The Head-Slot parameter is set to 0 and should be left at this value for the
Momentum M1 CPUs.