THE VIPA IM353 Profibus slave module from Automation Warehouse allows the use of Siemens S7-300 and VIPA 300V digital and analogue input and output cards on Profibus in place of the ET200M from Siemens.
The IM353 still plugs onto the Siemens custom DIN rail and rack. Configuration is similar to the Siemens equivalent by utilising STEP7 and the provided GSD file from VIPA.
VIPA has released the IM353 Profibus slave with 152-byte input and 152-byte output address area.
The IM353 slave module allows connection of up to 32 modules from VIPA or Siemens in one line and one drop, whereas the Siemens ET200M is said to be limited to eight modules for each Profibus drop. This is said to provide a distributed architecture over Profibus, but with centralised sized I/O quantities.