Modicon M171 M172 Plc Page 20 I/O expansion modules

20 Presentation, description Modicon M171/M172 logic controllers I/O expansion modules Presentation 5 I/O expansion modules are available, 2 of which are dedicated to M171 and M172 performance logic controllers, and 3 of which are for M171 optimized logic controllers (see compatibility table below). b They are used to increase the number of I/Os: v up to 44 on M171 optimized logic controllers v up to 351 on M171 performance logic controllers v up to 366 on M172 performance logic controllers b Expanded I/O types are digital and analog I/Os b They are connected: v Via the LAN expansion bus on M171 optimized logic controllers v Via the CAN expansion bus on M171 and M172 performance logic controllers Compatibility between logic controllers and I/O expansion modules Logic controller type Reference Compatible I/O expansion module ( reference ) M171 optimized TM171OBM14R TM171OD14R TM171ODM14R TM171EO14R TM171OB22R TM171OBM22R TM171OD22R TM171ODM22R TM171ODM22S TM171OF22R TM171OFM22R TM171EO15R TM171EO22R M171 performance TM171PBM27R TM171PDM27R TM171PDM27S TM171PFE03 TM171PFE03HR TM171EP14R TM171EP27R M172 performance TM172PBG28R TM172PDG28R TM172PDG28S TM172PBG42R TM172PDG42R TM172PDG42S Description 35 mm/ 1.38 in . 5 rail mounting I/O expansion modules TM171EP27R expansion module (1) 1 Connector for removable terminal block for digital inputs 2 Connector for removable terminal block for analog inputs 3 Connector for removable terminal block for Modbus SL 4 Connector for removable terminal block for CAN expansion bus 5 4-position DIP switches for address selection 6 Connector for removable terminal block for power supply ( z 24 V, c 48 V) 7 Connector for removable terminal block for fast digital input 8 Connector for removable terminal block for digital outputs 9 Connector for removable terminal block for analog outputs 10 Clip for 35 mm/ 1.38 in. 5 rail mounting 11 6- and 10-position DIP switches for address selection 12 3 status LEDs TM171EP14R expansion module (1) 1 4-position DIP switches 2 Connector for removable terminal block for CAN expansion bus 3 Removable terminal block for digital outputs 4 Behind the removable protective cover : Service port (TTL) 5 Connector for low voltage I/Os 6 Clip for 35 mm/ 1.38 in. 5 rail mounting 7 Connector for removable terminal block for power supply ( z 24 V TM171EO pp R expansion modules (1) 1 Service port (TTL) 2 Wired connector for removable terminal block for Modbus SL 3 Connector for removable terminal block for digital outputs 4 Wired connector for removable terminal block for power supply ( a 12-24 V or c 24 V), 5 Wired connector for low voltage I/Os 6 Clip for 35 mm/ 1.38 in. 5 rail mounting 7 Wired connector for removable terminal block for analog outputs 8 Wired connector for removable terminal block for LAN expansion bus (1) Removable terminal blocks to be ordered separately, except for TM171EO14R, see page 21. 10 1 2 3 4 6 7 8 9 11 5 12 1 2 3 5 6 7 4 8 4 5 6 7 1 2 3

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