Control Technologies CTI 2554-A Operating instructions

CTI 2554-A FOUR CHANNEL
HIGH SPEED COUNTER MODULE
INSTALLATION AND OPERATION GUIDE
Version 1.0
CTI Part #062-00223
2554-A IOG 13JUL2017 $25

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Copyright © 2005 Control Technology Inc.
All rights reserved.
This manual is published by Control Technology Inc., 5734 Middlebrook Pike, Knoxville, TN 37921.
This manual contains references to brand and product names which are tradenames, trademarks,
and/or registered trademarks of Control Technology Inc. Siemens® and SIMATIC® are registered
trademarks of Siemens AG. Other references to brand and product names are tradenames,
trademarks, and/or registered trademarks of their respective holders.
DOCUMENT DISCLAIMER STATEMENT
Every effort has been made to ensure the accuracy of this document; however, errors do occasionally
occur. CTI provides this document on an "as is" basis and assumes no responsibility for direct or
consequential damages resulting from the use of this document. This document is provided without
express or implied warranty of any kind, including but not limited to the warranties of
merchantiblility or fitness for a particular purpose. This document and the products it references are
subject to change without notice. If you have a comment or discover an error, please call us toll-free
at 1-800-537-8398.
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Figure 1 The Model 2554-A Four-Channel High Speed Counter Module
PREFACE
This Installation and Operation Guide provides installation and operation instructions for the CTI
Model 2554-A Four-Channel High Speed Counter Module for SIMATIC® 505 programmable
controllers. We assume you are familiar with the operation of SIMATIC® 505 Series programmable
controllers. Refer to the appropriate SIMATIC® user documentation for specific information on the
SIMATIC® 505 programmable controllers and I/O modules.
This Installation and Operation Guide is organized as follows:
Chapter 1 provides a general description of the module and operating modes.
Chapter 2 covers Mode 3 (General Counter Mode) operation.
Chapter 3 covers installation and wiring.
Chapter 4 covers module configuration.
Chapter 5 is a PLC programming example.
Chapter 6 is a guide to troubleshooting.
Chapter 7 covers Quadrature Mode operation.
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NOTE:
Notes alert the user to special features or procedures.
CAUTION:
Cautions alert the user to procedures which could damage equipment.
WARNING:
Warnings alert the user to procedures which could damage equipment and endanger the user.
WARNING:
The CTI Model 2554-A High Speed Counter controls its four discrete outputs. If the PLC is
switched from RUN mode to PROGRAM mode the module will continue to function as
programmed and the outputs may be activated by the module.
USAGE CONVENTIONS
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TABLE OF CONTENTS
PREFACE....................................................................... v
USAGECONVENTIONS. ........................................................ vii
TABLEOFFIGURES..............................................................xi
CHAPTER1. DESCRIPTION....................................................... 1
1.1TheoryofOperation...................................................... 1
1.2 Mode 0 - Period Measurement (microseconds). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 Mode 1 - Period Measurement (Hz).. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.4 Mode 2 - Frequency Measurement (Hz). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.5Mode3-EventCounter................................................... 2
1.6QuadratureCounterMode................................................. 2
1.7 Compatibility with Immediate I/O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.8FrontPanelDescription................................................... 3
CHAPTER2. MODE3OPERATION................................................. 5
2.1ControlWord........................................................... 5
2.1.1 Loading Preset Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2StatusWord. ........................................................... 8
2.3PresetTargetValues. .................................................... 9
2.4AutomaticReset......................................................... 9
2.4.1 Minimum Preset Target Values With Automatic Reset.. . . . . . . . . . . . . . . . . 10
2.5OutputControl......................................................... 11
2.6GatingandReset. ...................................................... 11
CHAPTER3. INSTALLATION.................................................... 13
3.1PlanningtheInstallation.................................................. 13
3.1.1 Calculating the I/O Base Power Budget.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2UnpackingtheModule................................................... 13
3.3 Inserting the Module into the I/O Base. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.4 Wiring the Input Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.4.1 Connecting the Shield Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.4.2 Connecting to the Counter Inputs.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.4.3 Connecting I/O Wiring.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.4.4 Wiring the Gate Inputs:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.4.5 Wiring the Reset Input:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.4.6WiringtheOutputs:............................................. 19
3.5 Checking Module Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
CHAPTER 4. CONFIGURING THE MODULE.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1 Selecting Counter Mode or Quadrature Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.2InputSignalConditioning. ............................................... 23
4.3 Mode Select Switches and Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.4 Gate, Reset, and Output Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
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CHAPTER 5. PLC Programming Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.1AProgrammingExample................................................. 29
CHAPTER6. TROUBLESHOOTING................................................ 35
CHAPTER 7. Quadrature Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.1 Quadrature Mode Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.2 Quadrature Data Presentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.3 Wiring for Quadrature Mode Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
SPECIFICATIONS. .............................................................. 41
LIMITEDPRODUCTWARRANTY................................................. 43
REPAIRPOLICY. ............................................................... 45
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