User cannot toggle a digital point inside the M238 Controller from the operator interface.
There is no mapping for %M (bits).So,user need to use %MW to read bool variable from Magelis XBTGT terminal side.
On VijeoDesigner, user can use the format 4001+i,j (i=> offset and j=> bit).
Then, on Somachine side,user can use %MX0.0 for 4001+0,0.
All the Modbus Function Codes are the same in Master and Slave mode when configuring the SL.
User can find in attachment an extract from the online help about the function code and object type supported by SoMachine.
It is not possible to read or write %M because the M238 controller memory do not have a specific memory for bits data .
We have only register %MW and %MX is a derivation of %MW in SoMachine for M238 controller.