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PUBLICATION NUMBER. Technical Data. 1756-TD002. Find all available product literature for this product in the Literature Library results . ControlLogix 8 Pt A/O I or V Module.
- Important User Information
- Preface
- Summary of Changes
- Key the Removable Terminal Block/Interface Module
- Electronic Keying
- ControlLogix Module Operation
- Direct Connections
- Input Module Operation
- Input Modules in a Local Chassis
- Trigger Event Tasks
- Output Module Operation
- Output Modules in a Local Chassis
- Output Modules in a Remote Chassis
- Remote Output Modules Connected Via EtherNet/IP Network
- Implicit Protected Mode
- Enter and Exit Implicit Protected Mode
- Restrictions Imposed by Implicit Protected Mode
- Multiple Owners of Input Modules
- Multiple Owners with Identical Configuration Data
- Configuration Changes in an Input Module with Multiple Owners
- Unicast Communication
- Real-time Sampling
- Process Alarms
- Alarm Deadband
- Input Data That Sets Each of the Alarms
- Rate Alarm
- Wire the Module
- 1756-IF8H Module Fault Word Bits
- 1756-IF8H Channel Fault Tags
- Analog Only
- Analog and HART PV
- HART Handheld Configurator
- Real-time Sampling
- Rate Alarm
- 1756-IF8IH Module Fault Word Bits
- 1756-IF8IH Channel Fault Tags
- 1756-IF8IH Configuration Tags (AB:1756_IF8IH_HART_CMD:C:0)
- Real-time Sampling (RTS)
- 1756-IF16H Module Fault Word Bits
- HART Handheld Configurator
- Real-time Sampling
- Wire the Module
- 1756-IF16IH Module Fault Word Bits
- 1756-IF16IH Channel Fault Tags
- Ramping/Rate Limiting
- Hold for Initialization
- Data Echo
- Use Module Block and Output Circuit Diagrams
- 1756-OF8H Fault Reporting
- Module Fault Word Bits
- Analog Only
- Analog and HART PV
- Data Types for the 1756-OF8IH Module
- Fault Mode Output State
- Ramping/Rate Limiting
- Hold for Initialization
- Data Echo
- HART Device Auto-configuration
- 1756-OF8IH Module Fault Reporting
- Module Fault Word Bits
- Configure Your Module
- HART Data Configuration Options
- View Module Information and Status
- Identification
- Coordinated System Time (CST)
- Refresh or Reset Device
- Apply Changes
- Use the Channels View To Configure Multiple Channels
- Channels View - Input Modules
- Input Module Channel Parameters in the Channels Table
- Channels View - Output Modules
- Individual Output Channel Parameters in the Channels Table
- Use the ChX View To Configure a Single Channel
- ChX View - Input Modules
- ChX View - Output Modules
- Output Module ChX View Channel Parameters
- Set Output Module Limits
- View HART Device Information
- HART Device Information Parameters
- HART Dynamic Variables
- Use a CIP MSG to get HART Data
- Read Additional Status (Service Code = 16#4C)
- Get Device Information (Service Code 16#4D)
- Use CIP Services to
- Pass-through a HART Message to a HART Field Device
- HART Module Scanning Diagram with Pass-through Messages
- HART Pass-through CIP Message Layout Details
- Pass-through Init (Service Code 16#4E)
- Pass-through Query (Service Code 16#4F)
- Considerations for Asset Management Systems
- Frequently Asked Questions
- Processing Real-time Control and Module Services
- One Service Performed Per Instruction
- Creating a New Tag
- Reconfigure a Module
- Use the Logix Designer Application to Troubleshoot a Module
- Additional Fault Codes - Module Level
- Remove the Module
- Wiring System Uses
- Additional HART Protocol Information
- Master-slave Operation
- Transaction Procedure
- Response Codes and Field Device Status (Continued)
- Manufacturer Identification Codes
- Code Number Details
- Remote Input Modules Connected Via ControlNet Network
- Input Module in Remote Chassis with Requested Packet Interval Reserving Spot in Flow of Data
- Remote Output Modules Connected Via ControlNet Network
- Customize Your Module
- HART Data Configuration Options
- View Module Information
- Status
- Coordinated System Time (CST)
- Refresh or Reset Module
- Apply Changes
- Configure Channels
- Configure Individual Output Channels
- Configure All Output Module Channels
- Alarm Tab Parameters
- Output State in Program Mode
- Output State in Fault Mode
- Set Output Module Limits
- single-ended (page 256).
- Documentation Feedback
Read this document and the documents listed in the additional resources section about installation, configuration, and operation of this equipment before you install, configure, operate, or maintain this product. Users are required to familiarize themselves with installation and wiring instructions in addition to requirements of all applicable code...
About This Publication Download Firmware, AOP, EDS, and Other Files
This manual describes how to install, configure, and troubleshoot ControlLogix® HART (Highway Addressable Remote Transducer) analog I/O modules. We assume that you can program and operate an Allen-Bradley® ControlLogix programmable automation controller. If you can’t, see the Logix 5000® controller documentation that is listed under Additional Reso...
Wedge-shaped keying tabs and U-shaped keying bands come with your RTB to help prevent connecting the wrong wires to your module. Key the positions on the module that correspond to unkeyed positions on the RTB. For example, if you key the first position on the module, leave the first position on the RTB unkeyed. To key the module, insert the U-shape...
Electronic Keying reduces the possibility that you use the wrong device in a control system. It compares the device that is defined in your project to the installed device. If keying fails, a fault occurs.
A ControlLogix® controller must own every I/O module in the ControlLogix system. The owner controller stores configuration data for every module that it owns. The owner controller can be located locally (in the same chassis) or remotely (in another chassis), relative to the position of the I/O module. The owner controller sends configuration data t...
A direct connection is a real-time data transfer link between the controller and the device that occupies the slot that the configuration data references. ControlLogix analog I/O modules use direct connections only. When an owner controller downloads module configuration data, the controller attempts to establish a direct connection to each of the ...
In the ControlLogix system, the owner controller does not poll analog input modules after a connection is established. The modules multicast their data periodically. Multicast frequency depends on the options that are chosen during configuration and the physical location of the module in the control system. The communication or multicasting behavio...
When a module resides in the same chassis as the owner controller, the following configuration parameters affect how and when the input module multicasts data: Real-time sample (RTS) Requested packet interval (RPI)
When configured to do so, ControlLogix analog input modules can trigger execution of an event task in a controller. The event task feature lets you create a task that executes a section of logic immediately when an event (receipt of new data) occurs. A ControlLogix analog I/O module can trigger event tasks each real-time sample, after the module ha...
The RPI parameter governs when an analog output module receives data from the owner controller and when the output module echoes data. An owner controller sends data to an analog output module once per RPI. Data isn’t sent to the module at the end of the controller program scan. When an analog output module receives new data from an owner controlle...
By specifying an RPI value for an analog output module, you instruct the controller when to broadcast output data to the module. If the module resides in the same chassis as the owner controller, the module receives the data almost immediately after the controller sends it. Owner Controller The owner sends data once per RPI Output Module
For output modules in remote chassis, the role of RPI in getting data from the owner controller changes slightly, depending on the network.
When remote analog output modules are connected to the owner controller via an EtherNet/IP network, the controller multicasts data in the following way: At the RPI, the owner controller multicasts data within its own chassis. The EtherNet/IP communication module in the local chassis immediately sends the data over the network to the analog output m...
When in Implicit Protected Mode, a module is operational, but has implemented defenses against disruptive changes that would take the product out of service for the process. Implicit Protected Mode is a security enhancement that occurs on the I/O module level and helps prevent unauthorized changes that can affect system behavior.
The module enters Implicit Protected Mode as soon as an I/O connection is established. The module exits Implicit Protected Mode as soon as all I/O connections through or to the module are stopped. Inhibiting the module will cause it to exit Implicit Protected Mode.
Implicit Protected Mode helps prevent access to services that are not required after the device is configured and in normal operation. This mode disables features that can make the device vulnerable to disruptive actions. By doing so, it helps to reduce the attack surface. If the module is in Implicit Protected Mode and you attempt to perform any o...
Because listening controllers lose their connections to modules when communication with the owner stops, the ControlLogix system lets you define multiple owners for input modules. IMPORTANT Only input modules can have multiple owners. If multiple owners are connected to the same input module, they must maintain an identical configuration for that m...
Initial Configuration Input Module Configuration Data Xxxxx Xxxxx Xxxxx Controller A Input Module Controller B CTR A CTR B Initial Configuration Input Module Configuration Data Xxxxx Xxxxx Xxxxx When multiple controllers are configured to own the same input module, the following events occur: When the controllers begin to download configuration dat...
Modified Configuration Input Module Configuration Data Xxxxx Xxxxx Xxxxx
You must be careful when you change the configuration data of an input module in a multiple owner scenario. When the configuration data is changed in one of the owners, for example, Controller A, and sent to the module, that configuration data is accepted as the new configuration for the module. Controller B continues to listen, unaware that any ch...
This parameter instructs the module how often to scan its input channels and obtain all available data. After the channels are scanned, the module multicasts that data. This feature is applied on a module-wide basis. During module configuration, you specify a real-time sampling (RTS) period and a requested packet interval (RPI) period. Both of thes...
Process alarms alert you when the module has exceeded configured high or low thresholds for each channel. You can latch process alarms. These alarms are set at the following configurable trigger points: High high High Low Low low The values for each limit are entered in scaled engineering units.
You can configure an alarm deadband to work with the process alarms. The deadband lets the process alarm status bit remain set, despite the disappearance of the alarm condition, as long as the input remains within the process alarm deadband. This figure shows input data that sets each of the alarms at some point during module operation. In this exa...
High high alarm turns ON High alarm remains ON High high High high alarm turns OFF High alarm remains ON High High alarm turns ON Low alarms turns ON Low Low low Low low alarms turns ON Low alarm remains ON High alarm turns OFF Normal input range Low alarms turns OFF Alarm deadbands Low low alarms turns OFF Low alarm remains ON
The value for the Rate Alarm Limit is entered in scaled engineering units per second. The rate alarm triggers if the rate of change between input samples for each channel exceeds the specified rate-alarm trigger point for that channel. Rate Alarm uses the signal value after filtering by the Module Filter and before the Digital Filter is applied.
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2 Rockwell Automation Publication 1756-IN063E-EN-P - January 2024 1756 ControlLogix Analog I/O Modules Installation Instructions ATTENTION: Read this document and the documents listed in the Additional Resources section about installation, configuration and operation of this equipment before you install, configure, operate or maintain this product.
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Overvoltage protection. ±30V DC (voltage/current) Settling time. <2 ms to 95% of final value with resistive loads. Total backplane power. Voltage mode = 6.3 W, Current mode with 250 Ω loads = 6.3 W, Current mode with 500 Ω loads = 7.6 W, Current mode with 750 Ω loads = 9.2 W, Current mode with 1000 Ω loads = 10.2 W.
186 Rockwell Automation Publication 1756-TD002J-EN-P - November 2016 1756 ControlLogix I/O Specifications Technical Specifications - 1756-OF8 Attribute 1756-OF8 Outputs Eight voltage or current Output range ± 10V 0…20 mA Resolution 15 bits across 21 mA - 650 nA/bit 15 bits across 10.4V - 320 V/bit Current draw @ 5.1V 150 mA Current draw ...
