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 SensorPulsess MSP family of Analog I/O Blocks offers the freedom to use any analog sensor with many models of PLC. Each MSP block provides a single analog input (or output) interface between the PLC and the analog world. Communications between the MSP unit and the PLC is through a patented protocol that provides truly "open" architecture for analog signals to be processed digitally.
The MSP Analog I/O Blocks are factory configured for a frequency input signal. Optionally, the MSP signal range can be reconfigured in the field to meet custom re-ranging needs.
Input Signal
The input signal is isolated, filtered, amplified, scaled and/or linearized by the MSP micro-processor and converted to a 16-bt, binary weighted, digital word which is transmitted serially (on bit at a time) at 24VDC signal levels to the PLCs discrete I/O port. At the PLC, each binary-weighted bit send to the discrete input is temporarily stored until all 16 bits have been received. The digital word is then reassembled and its value (proportional to the analog signal) is placed in a working register of choice for decision making by the PLC program.
 
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