Integrated counters in an input module for an industrial controller

摘要

An input module for an industrial controller is configurable to simplify setup and commissioning. The input module includes input terminals configurable, for example, as a counter input. Still other input terminals may be configured to trigger events as a function of the input signals present at the terminals. Time signals corresponding to transitions in state of the input terminals, triggering of events, or operation of the counters may be recorded. The input module is further configurable to transmit data back to the processor or to transmit data directly to another module in the industrial control network.

主权项

1. An input module for an industrial controller, comprising:
a plurality of input terminals configured to receive an input signal from a remote device; a memory device configured to store a plurality of configuration parameters, wherein the configuration parameters define a first portion of the input terminals as a counter terminal and a second portion of the input terminals as a terminal other than the counter terminal; a counter logic circuit configured to:
read the configuration parameters to identify each counter terminal,receive the input signal from the first portion of the input terminals,detect transitions in state of each input signal from the first portion of the input terminals,store an accumulated value of transitions in the memory device; and an other logic circuit configured to receive the input signals from the second portion of the input terminals.