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These flexible, adaptable PLCs are as compact as they are powerful, so you can create the system you need without increasing your space requirements or your budget. Each MicroSmart module is equipped with a standard power supply circuit, four high-speed counters, an RS-232C port and an analog potentiometer. The Slim type and the 24 I/O CPU module can be expanded with the optional modules. The extremely compact housing of the Slim type is only 90 mm in high and 70 mm deep. There are nine expansion modules including four analog I/O modules. Depending upon the CPU, you can create a system with as many as 244 I/O points.Each MicroSmart module can be enhanced with a memory cartridge for programs or a real-time clock and calendar cartridge, plus an RS-485 communications adapter or an additional RS-232 adapter. These adapters allow the MicroSmart to connect to other PLCs, printers, barcode readers, or other RS-232 devices. Monitor and change the status and set-up of your CPU while the system is in operation with the HMI module 65522-20. The MicroSmart can also be linked to as many as 32 other MicroSmart modules, or to a controller or PC.