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- The IM 153-1/153-2 interface module serves as the head module (IM; Interface Module) of the ET 200M. Up to 8 or 12 I/O modules from the module product range of the S7-300 automation system can be connected to the interface module.
- The interface module and the necessary I/O modules are assembled on a profile rail for the S7-300. During assembly, the I/O modules are connected to one another using bus connectors and using the IM 153 interface modules.
- For redundant operation, two IM 153-2 are mounted onto the BM IM/IM bus module. Special profile rails are available to accommodate the bus modules.
- When equipping the IM153 with S7-300 modules, slot rules do not have to be taken into account.
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