Schneider Automation Modicon Quantum Ethernet Guide de l'utilisateur télécharger pdf (Page 377)

100

101

Intelligent/Special Purpose

35013379 02 October 2007 377

Controlling the

Module

Hardware inputs from the field can be used to:

z Increment/decrement the input counters with serial pulses from encoders or other

square wave sources.

z Set direction of count.

z Reset the outputs.

Hardware inputs from the field and software commands are used together to:

z Enable the count input.

Hardware inputs from the field or software commands can be used to:

z Preset the input counter to zero or maximum count.

Software commands can be used to:

z Configure the counters for pulse (tachometer) or quadrature mode.

z Configure for 16 or 32 bit counters, with or without output assertion.

z Configure the module to operate in either count or rate-sample mode.

z Option for outputs to operate or not operate if backplane bus communication is

lost (i.e., a fault condition).

z Option for outputs to switch on when setpoint and/or maximum values are

reached.

z Define the setpoint and maximum count values.

z Define ON time for outputs.

z Disable outputs.

z Read the input counter totalizing or rate sample values.

z Retrieve the old (previous) input counter value after the counter has been preset.

This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com

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