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Modicon M241 logic controllers

I/O expansion with Modicon TM3 expansion modules

I/O expansion with Modicon TM3 modules

Modicon TM3 expansion modules The capacity of M241 logic controllers can be enhanced with the Modicon TM3 expansion module offer: v Digital I/O modules which can be used to create configurations with up to 488 digital I/O. These modules are available with the same connections as the controllers. v Analog I/O modules which can be used to create configurations with up to 114 analog I/O and are designed to receive, amongst other things, position, temperature, and speed sensor signals. They are also capable of controlling variable speed drives or any other device equipped with a current or voltage input. v Expert modules for controlling TeSys motor starters which simplify wiring up the control section due to connection with RJ 45 cables. v Functional safety modules which simplify wiring and can be configured in the SoMachine software. In addition, the TM3 expansion system is flexible due to the possibility of remotely locating some of the TM3 modules in the enclosure or another cabinet, up to 5 meters ( 16.404 ft ) away, using a bus expansion system. The Modicon TM3 expansion system is common to the whole range of Modicon M221, M241 and M251 logic controllers, meaning that the controller model can be upgraded without changing expansion module.

2 1 5 4

Local I/O

< 7 modules max. >

Embedded I/O

2 3 6 4

Remote I/O

< 7 modules max. >


24 V c

1 M241 logic controller. 2 Modicon TM3 digital I/O modules. 3 Modicon TM3 analog I/O modules


4 Modicon TM3 expert module for controlling TeSys motor starters. 5 Modicon TM3 functional safety modules. 6 Modicon TM3 bus expansion modules (transmitter and receiver). 7 TM3 bus expansion cable.

(1) Compatibility of expansion module offers: the majority of Modicon TM2 expansion modules can be used with M241 logic controllers. Nonetheless, adding a Modicon TM2 expansion module to a configuration can increase the expansion module execution times by as much as a few milliseconds. The compatibility of Modicon TM2 expansion modules with M241 logic controllers is described in detail on our website www.schneider-electric.com.

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