Siemens simatic dp interface module electronic module terminal module siemens 6es7151 1aa05 0ab0 the siemens 6es7151 1aa05 0ab0 is a simatic dp interface module im151 1 standard for the simatic et200s io system the im151 1 standard interface module connects the et 200s with profibus dp via the rs 485 interface a maximum of 63 modules can be operated with the module and it can operate as dpv0 or dpv1 slave on simatic s7 in dpv1 mode the maximum parameter length is 240 bytes per slot