Schneider Automation Modicon Quantum Ethernet Guide de l'utilisateur télécharger pdf (Page 380)

Intelligent/Special Purpose

380

35013379 02 October 2007

Miscellaneous

Information

Field wire to Counter 2 inputs and outputs, when configured for one 32 bit counter

with output assertion. The unused Counter 1 must have its + (plus) inputs connected

to VREF+.

Input counts and parameters are not maintained in the module at power down. The

rewrite of parameters at power up must be done with either user logic or Modzoom-

type preset panel selections.

The 200 Hz filter for each counter can be activated by strapping the Lo Filter Sel

terminal to the Return terminal. This function provides noise immunity for low

frequency applications and can also be used for relay debounce.

Operation The following information describes the operation of various module functions.

Rate Sample To rate sample, the module must be:

z Configured for pulse or quadrature mode.

z Configured for Rate Sample mode.

z Loaded with the Rate Sample time value.

z Enabled to count, using hardwired input and software control bits.

Pulse Count To count pulses, the module must be:

z Configured for pulse or quadrature mode.

z Configured for counter display: two 16 bit, one 32 bit, or two 32 bit counters.

z Loaded with the maximum count.

z Enabled to count, using hardwired input and software control bits.

Pulse Count and

Turning Outputs

On/Off

To count pulses and turn outputs on and off, the module must be:

z Configured for pulse or quadrature mode.

z Configured for two 16 bit or one 32 bit counter.

z Configured to assert or not assert outputs at the programmed count values when

the module loses communication with the bus (fault condition).

z Configured to specify if outputs turn on at a setpoint or maximum count, turn on

at those points for a specific amount of time, or remain latched. If latched, outputs

can only be reset by a hard wired input.

z Loaded with setpoint values, maximum count values, and output assert time.

z Enabled to count using hardwired input and software control bits.

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

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Compaq IJ600 User Manual (2 pages)

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