Rockwell-automation 1769-IF4XOF2 Compact 8-Bit Low Resolution Analog I Manuale Utente Pagina 14

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Publication 1769-UM008A-EN-P - November 2001
1-4 Overview
General Diagnostic Features
The module contains diagnostic features that can help you identify the
source of problems that may occur during power-up or during normal
channel operation. These power-up and channel diagnostics are
explained in Chapter 5, Module Diagnostics and Troubleshooting.
Overview of the Analog
System
The module communicates to the controller through the bus interface.
The module also receives 5 and 24V dc power through the bus
interface.
You can install as many analog modules as your power supply can
support. However, the 1769-IF4XOF2 module has a power supply
distance rating of 8, which means that it may not be located more than
8 modules away from the system power supply. The illustration below
shows how power supply distance is determined.
1
1123432
234
Compact I/O
Compact I/O
Compact I/O
Compact I/O
End Cap or Cable
MicroLogix 1500 Controller
with Integrated System
Power Supply
System Power Supply
(e.g. 1769-PA2)
Compact I/O
Compact I/O
Compact I/O
End Cap or Cable
CompactLogix Controller
or I/O Communication
Adapter
Compact I/O
Compact I/O
Compact I/O
OR
Power Supply Distance
Power Supply Distance
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