Rockwell Automation Allen-Bradley ControlLogix 1756-HSC User Manual
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Rockwell Automation Allen-Bradley ControlLogix 1756-HSC User Manual

High-speed counter module
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ControlLogix High-speed
Counter Module
Catalog Number 1756-HSC
User Manual
Original Instructions

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Summary of Contents for Rockwell Automation Allen-Bradley ControlLogix 1756-HSC

  • Page 1 ControlLogix High-speed Counter Module Catalog Number 1756-HSC User Manual Original Instructions...
  • Page 2 If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.

  • Page 3: Table Of Contents

    Maximum Frequency ........33 Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 4 Disabled Keying ..........69 Download Configuration to the 1756-HSC Module....71 Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 5 Electromechanical Limit Switch......103 Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 6 ............117 Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 7: Preface

    Provides general guidelines for installing a Rockwell publication 1770-4.1 Automation industrial system. You can view or download publications at http:// www.rockwellautomation.com/literature. To order paper copies of technical documentation, contact your local Allen-Bradley distributor or Rockwell Automation sales office. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 8 Preface Notes: Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 9: Module Features

    • accumulated count - values can be 1…16 million. • frequency - positive or negative depending on the direction of the rotation. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 10 Frequency (Continuous Rate) (1) B-input state defines direction (Counter mode). (2) Modes where frequency controls the outputs. (3) Rollover/Preset settings apply. Data Structures in Appendix C for a list of tags. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 11: Encoder And Sensor Compatibility

    Status indicators including specifics for the input A, B, and Z (reset) points for each channel of the module. The output-point status display indicates the status of four output points on the module. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 12: 1756-Hsc Parts Illustration

    Removable terminal block - The RTB lets you connect and house the wiring. There are several types of RTBs. page 41 for details on RTB types. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 13: Counter Modes

    Present Value tag. The state of input B determines whether to increment or decrement the count based on whether it’s low, floating (count up) or high (count down). Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 14 These are the tags: • Preset • Rollover The remainder of this chapter details each mode and the different configurations that you can use for specific needs of your module. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 15: Counter Mode

    Input B Input Z (optional) Single-phase Pulse Generator 1756-HSC Module Count Up Count Down Input A – Input B Accumulated Count in Present Value Tag Directional Frequency in Positive Frequency Negative Frequency Totalizer Tag Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 16: Encoder Mode

    1756-HSC Module A Leads B 90° B Leads A 90° Input A Input B Change Accumulated Count in . . . Present Value Tag Directional Frequency in Positive Frequency Negative Frequency Totalizer Tag 4488 Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 17 Maximum frequency in Encoder x1 and x4 modes = 250 kHz (assuming 50% duty cycle), with a minimum pulse width at this frequency of 2 s. The module assumes a 90° phase (A/B°) difference between channels. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 18: Preset

    If the value of the Preset tag in the output area is changed to a nonzero value, the module disregards the value that is sent from the configuration area and use the value in the output area instead. This facilitates easier real-time ‘on- the-fly’ changes to the preset function. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 19: Rollover

    • Store and Reset, Wait, and Start • Store and Reset, and Start The Storage modes are selected on the Counter Configuration tab on the Module Properties dialog box of the programming software. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 20: Storage Modes

    Stored Value until new data from the next leading edge of a pulse on Input Z overwrites it. Store, Wait, and Resume Incoming Pulses Present Value Tag in Logix Controller Z-Input Stored Value Tag in 44901 Logix Controller Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 21 Stored Value until it is overwritten by new data from the next leading edge of a pulse on Input Z. Store and Reset, and Start Incoming Pulses Present Value Tag in Logix Controller Z-Input Stored Value Tag in 44903 Logix Controller Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 22: Outputs

    Each output on the module can be turned On and Off at your discretion. The operation of outputs tied to a counter (on the Output Configuration tab of the Module Properties dialog box) is performed independently from the controller scans. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 23: Output Operation

    RTB. In this way, it is possible to use the outputs to reset a counter or to cascade counters. If using the outputs this way, verify that the correct input terminals are used to interface with the appropriate output voltage. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 24 Chapter 2 Counter Modes Notes: Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 25: Frequency Modes

    At higher frequencies, there are a greater number of pulses to be sampled that results in the ability to calculate frequency at a higher resolution. The Stored Value tag is updated at the end of the selected sample period. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 26: Frequency Mode

    Totalizer tag. page 18 in Chapter 2 for preset and rollover tag details. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 27: Sample Period For Frequency Mode

    Frequency in Stored Value Tag = 30 Hz User Selectable Sample Period 100 ms Total Number of Pulses in Totalizer Tag Updated on Falling Edge of Scaler 41690 * Always Inactive for 10 ms Regardless of Scaler Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 28: Period Rate And Continuous Rate Modes

    * If the scaler is equal to 1, the Frequency is accurate only if the duty cycle is 50%. ** One 4 MHz pulse = 250 ns. Totalizer Tag . . . 41684 Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 29: Sample Period For Period/Continuous Rate Modes

    * - a 50% duty cycle is required for accurate Frequency calculations when using a scaler of 1. 4 MHz count value in Present Value tag is incremented. 44926 IMPORTANT Sample period times scaler must be less than 0.25 seconds or the counter will overflow without providing an overflow indication. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 30 5 Hz 800,000 1,600,000 200,000 10 Hz 400,000 800,000 100,000 20 Hz 200,000 400,000 40,000 50 Hz 80,000 160,000 20,000 100 Hz 40,000 80,000 10,000 200 Hz 20,000 40,000 4000 500 Hz 8000 16,000 Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 31: Output Operation

    In both Period Rate and Continuous Rate, the Present Value, Stored Value, and Totalizer tags are updated at the end of the sample period. page 32 for square wave examples in Period Rate and Continuous Rate modes. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 32: Period Rate /Continuous Rate Output Examples

    Output OffValue Tag = 80,001 Output State in Continuous Rate 4 MHz Count 4 MHz Count = 20,000 = 80,000 Scaler Tag = 2 Output OnValue = 20,000 Output OffValue = 80,001 12633-I Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 33: Maximum Frequency

    Rate, Continuous Rate) Higher signal rates typically require extra caution in the installation IMPORTANT and compatibility of the pulse generating device. Be sure to read Appendix D, ‘Application Considerations’, to verify your device’s compatibility. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 34 Chapter 3 Frequency Modes Notes: Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 35: Introduction

    In addition to this publication, see the following: • Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1, for additional installation requirements • NEMA Standard 250 and IEC 60529, as applicable, for explanations of the degrees of protection provided by enclosures Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 36 ATTENTION: The ControlLogix system has been agency certified using only the ControlLogix RTBs (1756-TBCH and 1756-TBS6H). Any application that requires agency certification of the ControlLogix system using other wiring termination methods may require application specific approval by the certifying agency. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 37: Install The Module

    This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding. 1. Align the circuit board with the top and bottom chassis guides, as shown. Top Guide Bottom Guide Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 38: Key The Removable Terminal Block

    4 on the RTB or your RTB does not mount on the module. 1. Insert the U-shaped band with the longer side near the terminals, pushing the band on the module until it snaps into place. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 39: Wiring The Module

    Use only the same size wires with no intermixing of solid and stranded wire types. When using the 1756-TBS6H terminal block, do not wire more than one conductor on any single terminal. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 40: Connect The Wires

    Use any chassis mounting tab that is designated as a functional signal ground. The functional earth ground symbol appears near the tab. 6. When the drain wire is grounded, connect the insulated wires to the field-side. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 41: Connect Ungrounded End Of The Cable

    ControlLogix RTBs (catalog numbers 1756-TBCH, 1756-TBNH, 1756-TBSH and 1756-TBS6H). Any application that requires agency certification of the ControlLogix system using other wiring termination methods may require application-specific approval by the certifying agency. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 42: Recommendations For Wiring Your Rtb

    Not Used Not Used Not Used Not Used Not Used Not Used Out 2 Out 0 Out 1 Out 3 COMMON 0 COMMON 1 COMMON 0 COMMON 1 COMMON 1 COMMON 0 DC-1(+) DC-0(+) Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 43: Wire An Allen-Bradley Bulletin 872 3-Wire Dc Proximity Sensor

    12…24V DC Not Used Not Used Return Not Used Not Used Out 0 Out 2 Out 1 Out 3 COMMON 0 COMMON 1 COMMON 0 COMMON 1 COMMON 1 COMMON 0 DC-1(+) DC-0(+) Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 44: Wire A Photoswitch® Series 10,000 Photoelectric Sensor

    Not used Not used Not used Not used Not used Not used Out 2 Out 0 Out 1 Out 3 COMMON 0 COMMON 1 COMMON 0 COMMON 1 COMMON 1 COMMON 0 DC-1(+) DC-0(+) Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 45: Assemble The Removable Terminal Block And Housing

    RTB. 2. Slide the RTB into the housing until it snaps into place. If additional wire routing space is required for your application, use IMPORTANT the extended-depth housing, catalog number 1756-TBE. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 46: Install The Removable Terminal Block

    1. Align the top, bottom, and left side guides of the RTB with the guides on the module. Top Guide Bottom Guide 2. Press quickly and evenly to seat the RTB on the module until the latches snap into place. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 47 Chapter 4 Install and Wire the ControlLogix High-speed Counter Module 3. Slide the locking tab down to lock the RTB onto the module. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 48: Remove The Removable Terminal Block

    2. Open the RTB door by using the bottom tab. 3. Hold the spot marked PULL HERE and pull the RTB off the module. Do not wrap your fingers around the entire door. A shock hazard IMPORTANT exists. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 49: Remove The Module From The Chassis

    Worn contacts may create electrical resistance that can affect module operation. Push in the top and bottom locking tabs. 2. Pull the module out of the chassis. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 50 Chapter 4 Install and Wire the ControlLogix High-speed Counter Module Notes: Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 51: Introduction

    The illustration shows how the module communicates with its owner- controller. If connections are severed or compromised, the module performs as configured, either setting all outputs to reset (On or Off) or continuous operations. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 52: Direct Connections

    The programming software can monitor this data area to announce the module’s failures. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 53: Local Chassis Operation

    ControlNet™ bridge at a rate no slower than the configured RPI. Figure 4 - Data from Remote Chassis Sent to ControlNet Bridge Local Chassis Remote Chassis HSC module Data sent at the RPI rates ControlNet Network Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 54: Use The Default Configuration

    Otherwise, you must issue a reconfigure command from the controller. Access the 1756-HSC data structures through the tag monitor to make specific configuration changes. Appendix B for tag descriptions. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 55: Use The Programming Software, Version 18 Or Later

    1. On the Controller Organizer, right-click I/O Configuration and choose New Module. The Select Module dialog box appears. 2. Click the ‘+’ next to Specialty for a list for this module group. 3. Select 1756-HSC and click OK. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 56 Controllers that have programming software, version 17 or earlier, should use Compatible Keying for the 1756-HSC module. You must upgrade to version 18 or later if Exact Match is required; otherwise, there will be no connection with the controller. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 57: Communication Format Options

    Format that is used by a controller to listen-only to a module that is using Listen-only Extended the HSC Data-extended Comm Format that is configured by another controller. IMPORTANT page 58 for specific modes and tags for the HSC Data and HSC Data-extended Comm Formats. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 58 (Continuous Rate) (1) Modes where frequency controls the outputs. (2) B-input state defines direction (Counter mode). (3) Rollover/Preset settings apply. Appendix B for a complete list and description of configuration, input, and output tags. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 59: Set Rpi

    Clear the box if there are other ‘listening’ controllers in the system. The fault box is empty if you are offline. The type of fault displays Module Fault in the text box if a fault occurs when the module is online. 2. Click OK. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 60: Set Up Counter Configuration

    Configuration tab. The Counter Configuration dialog box appears. The dialog box is divided into two halves; one each for the respective channel (0, 1) inputs. 2. Choose counter parameters in the Counter Configuration tab. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 61 Input Z reverses reading the rising or falling edge of the pulse depending on Invert Z Value previous usage. If the pulse was read on the rising edge, the module inverts the signal and now reads the falling edge of the pulse. 3. Click OK. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 62: Filter Selections

    5 kHz (0x10 for CH0, 0x20 for CH1, 0x30 for both channels) • 50 kHz (0x40 for CH0, 0x80 for CH1, 0xC0 for both channels) Set only one filter bit for each channel. If you set multiple bits, filtering is disabled. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 63: Set Up Output Configuration

    Off at 100 counts and turn back On at 200 counts. Communications Failure Select the output’s status if communication is severed between the module When communications fail in Program and its owner-controller. Mode 3. Click OK. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 64: Copy Configuration (.C) Output, Rollover, Preset Tags

    5. Type this information: - Source -- Local:3:C.Output[0] - Dest -- Local:3:O.Output[0] - Length -- 4 (this is the size of the array with four outputs: 0, 1, 2, 3) Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 65 Your routine should look like this example for a 1756-HSC module in a slot. 6. Repeat step 4 step 5 to add two more CPS commands to the same rung. 7. Type the information as shown in the example. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 66: Electronic Keying

    Keying Attributes Attribute Description Vendor The manufacturer of the module, for example, Rockwell Automation/Allen-Bradley. The general type of the module, for example, communication adapter, AC drive, or Product Type digital I/O. Product Code The specific type of module, represented by its catalog number, for example, 1756-HSC.

  • Page 67: Exact Match

    Major Revision = 3 Minor Revision = 2 Changing electronic keying selections online may cause the I/O IMPORTANT Communication connection to the module to be disrupted and may result in a loss of data. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 68: Compatible Keying

    Major Revision = 3 Minor Revision = 3 Communication is prevented. Physical Module Vendor = Allen-Bradley Product Type = Digital Input Module Catalog Number = 1756-IB16D Major Revision = 3 Minor Revision = 2 Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 69: Disabled Keying

    We generally do not recommend using Disabled Keying. ATTENTION: Be extremely cautious when using Disabled Keying; if used incorrectly, this option can lead to personal injury or death, property damage, or economic loss. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 70 Major Revision = 2 Minor Revision = 1 Communication is allowed. Physical Module Vendor = Allen-Bradley Product Type = Digital Input Module Catalog Number = 1756-IB16 Major Revision = 3 Minor Revision = 2 Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 71: Download Configuration To The 1756-Hsc Module

    Follow these steps to download the new program. 1. To access the Download option, click the pull-down menu. 2. Click Download. 3. When the Download dialog box appears, read the text and click Download. This completes the download process. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 72 Chapter 5 Configure the Module Notes: Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 73: Introduction

    • Program a value that is not an integer multiple of 10 in Frequency mode • Program a value whose scaler is not equal to 0 Occurs in Period Rate/Continuous Rate modes if the scaler is not 0, 1, 2, 4, 8, 16, 32, 64, 128, 256 Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 74: Programming Software Diagnostics

    Notification in the Tag Editor - General module faults also are reported in the Tag Editor. Diagnostic faults are reported only in the Tag Editor. • Status on the Module Info tab. These windows display fault notifications. Warning Signal on Main Window Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 75 On the Module Info tab, in the Status section, the Major and Minor Faults are listed along with the Internal State of the module. Notification in Tag Editor The Value field shows 65535 to indicate that the module connection has been broken. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 76: Fault Type Determination

    Program mode means ‘Outputs Turn Off’ during a fault. An output must be forced On. Set the O.OutputControl[x] bit to 2. An output must be forced Off. Set the O.OutputControl[x] bit to 1. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 77: Introduction

    Input turned on None If you must use the output, Output turned off check input wiring Output Output not currently used connections and your ladder (0, 1, 2, 3) program On/Yellow Output turned on None Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 78 Appendix A Status Indicators Notes: Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 79: Configuration, Output, Input

    Acceptable numbers for the scaler are: 1, 2, 4, 8, 16, 32, 64, 128, 256. There is one Scaler value for each counter. The default value for each Scaler is 1; a 0 is equivalent to 1. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 80 This setting may be overridden by the output tag setting. See page 18 page 19 in Chapter 2 for details. (1) Configuration tags can be changed during operation by using a message Module Reconfigure command. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 81: Output Structure

    2 = Counter continues to determine outputs operation. - If this setting is ever seen by the module as a nonzero value, it overrides the corresponding configuration tag setting. page 18 page 19 in Chapter 2 for details. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 82: Input Structure

    Determines whether output is overridden. I.IsOverridden.y BOOL Decimal 0 = Output is using On-Off window. 1 = Output is overridden. Displays the coordinated system timestamp of the last sample I.CSTTimestamp DINT[2] in microseconds. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 83: Introduction

    Multiple Digital Filters To choose firmware revision 4.x or later, you must install an Add-on Series C Profile when it becomes available. We recommend, that you check the Rockwell Automation Product Compatibility Download Center (PCDC) at http://compatibility.rockwellautomation.com/Pages/ home.aspx for an AOP.

  • Page 84: Profile Overview

    2.x or 1x. Attempting to downgrade a module’s firmware from 3.x to 2.x or 1x will irreversibly damage the module. 1756-HSC modules at firmware revision 2.x or 1x cannot be flash upgraded to any firmware revision 3.x because 3.x modules have a hardware update. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 85: Configure A Generic Profile

    Series A or Series B application, ‘Generic Connection for the 1756-HSC Ser A Rev 2.1/Ser B Rev 3.X’. This file is available at the Rockwell Automation Sample Code website (http://samplecode.rockwellautomation.com). After you have downloaded and opened the sample code .ACD file, follow these steps to create a generic profile.
  • Page 86 The generic connection works only with the matching Assembly IMPORTANT Instance and Size parameters that are listed above for the input, output, and configuration settings. 9. Check Open Module Properties to access additional dialog boxes to enter information. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 87 This module will not be used, but the configuration of this profile will aid later in the configuration of the generic module. 14. Click OK. The ladder logic copies the module configuration from this profile to the generic profile. 15. Click OK. 16. Save the project. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 88: Copy Acd File

    In the blank entry field at the bottom of the window, enter your tag name and data type. Use Default Tags a. To use default tags that were imported from the sample download at the start of these procedures, double-click Controller Tags on the Controller Organizer. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 89 Appendix C Module History b. Click the ‘+’ sign to expand and review each of the three UDTs (HSC_CONFIG, HSC_IN_STRUCT, HSC_OUT_STRUCT). Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 90: Add Ladder Logic Routines

    .ACD file. 1. On the Controller Organizer under Tasks, double-click Main Program. 2. Double-click the .ACD file to access the ladder logic. 3. Paste the rungs into a routine of your 1756-HSC project. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 91 .Output locations, which will be dynamically sent to the module. This rung does not affect the ability to make real-time changes to the Output, Rollover, and Preset functions. 5. Save your program. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 92: Upgrade Module To Software Version 18 And Later

    15…17 not have electronic keying set to Exact Match for compatibility with the 1.x firmware revision. You must upgrade to version 18 or later if Exact Match is required for electronic keying. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 93 4. Type a number for the mode that you want to use. page 58 in Chapter 5 for a list of the operational modes and the corresponding tag value. The same procedures apply for entering other tag values. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 94: Change Configuration Data Via Message Instruction

    For example, if a message instruction sends new configuration data to the module, the message instruction must be re-executed to update and send the configuration data in the future. For procedures, see the Logix 5000™ Controllers Messages Programming Manual, publication 1756-PM012. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 95: Introduction

    DC control wiring and any 50/60 Hz AC wiring, use of shielded cable, twisted-pair cables, and so forth. For more information, see Industrial Automation Wiring and Grounding Guidelines, publication 1770- 4.1. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 96: Examples For Selecting Input Devices

    R7 and R8, you would have 8…21 mA demanded from the driving circuit as the applied voltage ranged from 12V…24V. 5V Differential Input Terminals Line Driver 40.2 40.2 +12 to 24V High 22  Input 40.2 40.2 + 12 to 24V Single-ended Driver Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 97 When a signal is applied to the 5V inputs (pins 16 and 18 in the graphic), the limiting resistance is total of resistance offered by R65, Q15 and Q3. If 5.0V was applied at the input, the current demanded would again be in range of 5-8mA. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 98: Detailed Circuit Analysis

    V to be relatively linear from about 1.6V to 2.0V as drop the current increases from 4-8 mA. Review the following 5V differential line driver example to see why this is important. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 99 1. There is approximately a 2.5...4.5 V drop across Resistors in series with Q15 that is maintained by Q15 constant current source. A minimum of approximately 7.5V is required to turn on the Input circuit. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 100: 5V Differential Line Driver Example

    (R). If a 24V supply is used, and this driver supplies 15 mA, the output voltage still would be about 23V (15 mA x 22  = 0.33V, and Vce = .7V). Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 101 22  Input R194 Drive R159 R165 + 12 to 24V Single-ended Driver As explained on page 96, the voltage and current required for HSC to operate is within capability of this driver. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 102: Open Collector

    Keep in mind that you want the available current to be at least 4 mA. Series A and B Modules Input Terminals +12V Open Collector Input Output 40.2 40.2 Ground Limit Switch or Switch DC Proximity +12 to 24V Switch Power 40.2 40.2 Ground 44801 Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 103: Electromechanical Limit Switch

    50 Hz or 500 Hz. This circuit would be similar when using DC proximity switches, but bounce should not occur unless severe mechanical vibration is present. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 104: Output Circuits

    (customer return). This wiring method does not provide inductive load protection for the power output transistors. Customer Out 0 Drive Circuit Out 1 Customer Return Customer Return Customer Return 44802 Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 105: Series C And D

    Common Common Channel Customer-supplied power, ranging from +5V DC…+31.2V DC, is connected internally through terminals 35 (Customer VCC) and 36 (Customer Common) to the power output transistors, for example, Q28 as depicted above. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 106: Application Considerations

    Undesirable Balanced Single-Ended: any AC or ACT family part 5V Line Drivers, such as: DM8830 Discrete, balanced circuit Standard TTL or LSTTL Gates DM88C30 75ALS192 or equivalent Open-Collector:suitable for frequencies of <50 kHz Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 107: Totem-Pole Output Devices

    Increasing cable length causes a linear increase in capacitance, which reduces the maximum usable frequency. This is especially true for open collector drivers with resistive pull-ups. For example, Belden 9182 is rated at a low 9 pF/foot. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 108: Cable Length And Frequency

    For any application over 100 ft, and/or over 100 kHz, use Belden 9182, a high- performance, twisted-pair cable with 100% foil shield, a drain wire, moderate 150  impedance and low capacitance per unit length. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 109: Glossary

    Hertz between the highest and lowest frequencies. baseband link 1) A communication link with only one channel, encoded by on/off switching. Examples: DH and DH+ links. 2) Contrasted with carrier-band link (page 110) and broadband link (page 110). Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 110 (switch and jumper) and software selections that determine the operating characteristics of the system. connection The communication mechanism from the controller to another module in the control system. controlbus The backplane used by the 1756 chassis. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 111 I/O values. 2) Contrasted with intelligent I/O module (page 113). disable keying Option that turns off all electronic keying to the module. Requires no attributes of the physical module and the module configured in the software to match. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 112 2) Contrasted with field wiring (page 112). field side Interface between user field-wiring and I/O module. field wiring 1) Wiring connected by the user after the user receives the product. 2) Contrasted with factory wiring (page 112). Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 113 An I/O connection that allows a controller to monitor I/O module data without owning the module. local I/O 1) I/O connected to a processor across a backplane or a parallel link, thus limiting its distance from the processor. 2) Contrasted with remote I/O (page 115). Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 114 (consumers) recognize the data they need and consume it. Therefore, data only needs to be sent out on the network in a single message no matter how large the number of nodes to which it needs to go. Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 115 I/O can be addressed. unbalanced circuit 1) A circuit whose two sides are electrically dissimilar, as when one side is grounded. 2) Contrasted with balanced circuit (page 109). Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 116 Glossary Notes: Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...

  • Page 117: Index

    63 output data structure 79 connections direct connection 52 to the RTB 40 continuous rate frequency 28 counter assigned outputs 22 configuration 60 configuration error codes 73 illustration 15 CSA certification 11 Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 118 FM certification 11 format communication 57 frequency calculation sample period 27 continuous rate 28 mode HSC 26 module maximum 33 period rate 28 gate/reset input Z 19 grounding connecting ungrounded end of wiring 41 Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 119 19 inputs HSC 62 installing the module 37 keying electronic 12 local chassis operation 53 modes encoder 16 encoder X1 14 encoder X4 14 module configuration 51 diagnostics 73 maximum frequency 33 Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 120 1756-TBE extended housing 42 1756-TBS6H spring clamp 41 keying 38 recommendations 42 types 41 using Belden 9182 cable 40 wiring recommendations 42 wiring the cage clamp RTB 41 wiring the spring clamp RTB 41 Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 121 RTB 41 connecting ungrounded end of wiring 41 connecting wiring to the RTB 40 module 39 photoelectric series 10,000 photoelectric sensor 44 recommendations 42 spring clamp RTB 41 using Belden 8761 cable 40 Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 122 Index Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 123 ControlLogix High-speed Counter Module User Manual Rockwell Automation Publication 1756-UM007E-EN-P - August 2021...
  • Page 124 Rockwell Automation maintains current product environmental compliance information on its website at rok.auto/pec. Allen-Bradley, ControlLogix, expanding human possibility, FactoryTalk, Logix 5000, PHOTOSWITCH, Rockwell Automation, RSLogix 5000, and RSNetWorx are trademarks of Rockwell Automation, Inc. EtherNet/IP is a trademark of ODVA, Inc.

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