PLC Adds Analog Modules

The new CPUs feature two analog inputs and two outputs with ranges of voltage up to 5VDC or current up to 20mA. The modules include two built-in RS-232 communication ports and one RS-485 port, as well as real-time clock and battery backup for internal SRAM. Analog CPU modules are differentiated by their discrete I/O; all have four DC inputs and a choice of four DC sinking, DC sourcing or relay outputs. All CPUs are configured with easy-to-use programming software, available as a free download. Prices for the analog CPUs start at $129.

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