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    Using Modbus Commands to Unlatch an Input

    Overview

    Many Banner radios, such as the K70 wireless touch buttons, have a latching input. It can be useful to use Modbus commands so that this input can be cleared without having an operator manually clear the latch by pushing the button a second time. This example will go through reading in the latching input on a K70 wireless touch button and will when a register in the DXM transitions from “0” to “1”.

    The associated XML sample programs can be loaded into a DXM150-Bx or DXM100-Bx Wireless Controller.


    The Sample Timer XML provides an example of a continuously running timer that resets at different time intervals. It does not require remote radios connected to the DXM1x0 to function. The timer is always running. The DXM display LEDs are enabled by universal input 1 on the DXM100 and isolated input 1 for the DXM150. The input is labeled LED Enable. When the LED Enable inputis active, LEDs 1, 2, and 3 on the DXM turn on for 5, 10, and 20 seconds respectively as defined by Action Rules. The timer automatically resets at 25 seconds, then LEDs 1, 2, and 3 are again turned on. This ongoing timer can be used for OEE applications, etc.

    One-shot Timer XML provides an example of a timer sequence started with the rising edge transition of the Input Trigger. The Input Trigger is universal input 1 on the DXM100 and isolated input 1 for the DXM150.


    All timer and input values can be observed via the display of the DXM.

    Using Modbus Commands to Unlatch an Input
    Using Modbus Commands to Unlatch an Input
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