Are you struggling to figure out how to wire your 1794 ie8h module? Look no further! In this article, we will walk you through step-by-step on how to wire your 1794 ie8h module. We will also go over some frequently asked questions to better understand your 1794 ie8h module.
Understanding the 1794 ie8h Module
The 1794 ie8h is a Flex I/O HART Analog module that provides high accuracy measurement and control of your analog signals. It has eight single ended or differential inputs and can support up to four HART-compatible devices. This module is compatible with Allen-Bradley CompactLogix and ControlLogix controllers.
Before we start wiring, it is important to note that you should always follow the manufacturer’s instructions and safety precautions. Always turn off power before wiring and verify that the power is off before proceeding.
Wiring your 1794 ie8h Module
Here are the steps to wiring your 1794 ie8h module:
Step 1: Mounting the Module
The first step is to mount the module on the DIN rail by sliding it into the rail until it clicks into place. Make sure to leave enough space between modules for proper ventilation.
Step 2: Connecting the Power Supply
Connect the power supply to the power terminals on the module. The power supply should be rated between 19.2V DC and 31.2V DC.
Step 3: Wiring the Analog Inputs
The 1794 ie8h has eight single ended or differential inputs. Each input has a positive terminal, negative terminal, and a shield terminal. Here are the steps to wire your analog inputs:
| Input Type | Positive Terminal | Negative Terminal | Shield Terminal |
|---|---|---|---|
| Single Ended | Wire to positive voltage | Wire to negative voltage or ground | Connect to ground |
| Differential | Wire to positive voltage | Wire to negative voltage or ground | Connect to shielded twisted pair wire |
Step 4: Wiring the HART Devices
The 1794 ie8h can support up to four HART-compatible devices. Each device has a positive terminal, negative terminal, and a shield terminal. Here are the steps to wire your HART devices:
| Device Type | Positive Terminal | Negative Terminal | Shield Terminal |
|---|---|---|---|
| HART-Compatible Transmitter | Wire to positive voltage | Wire to negative voltage or ground | Connect to shielded twisted pair wire |
Step 5: Connecting the Network
Connect the 1794 ie8h module to the network by wiring the network cable to the network terminal on the module. Make sure to follow the network wiring guidelines for your specific controller.
Frequently Asked Questions (FAQ)
What is the voltage range for the 1794 ie8h module?
The voltage range for the 1794 ie8h module is between 19.2V DC and 31.2V DC.
How many HART-compatible devices can the 1794 ie8h module support?
The 1794 ie8h module can support up to four HART-compatible devices.
What is the difference between single ended and differential inputs?
Single ended inputs use one wire to measure the voltage between the signal and ground, while differential inputs use two wires to measure the voltage difference between two signals.
Can I wire my HART devices in any order?
No, you should always wire your HART devices in ascending order by their device tag numbers.
Do I need to calibrate my 1794 ie8h module?
Yes, you should always calibrate your 1794 ie8h module before use to ensure accurate measurement and control of your analog signals.
That’s all! We hope this guide has helped you wire your 1794 ie8h module with ease. If you have any other questions, please consult your manufacturer’s instructions or contact their customer support for assistance.
