Front Panel Components
Original instructions
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Overview
This section contains an illustration of the front panel of the 170 ADI 540 50 I/O base and a description of the LEDs.
Front Panel Illustration
The front panel of the I/O base is shown in the illustration below.
Components of the I/O module
Label
Description
1
Internal interface (ATI) connector
2
Locking tab for the adapter
3
Ground contact for the adapter
4
LED status display
5
Module power and field inputs
6
Mounting holes for panel mount
7
Grounding screw
8
Busbar Mounting Slot
9
Locking tab for DIN rail mount
10
Sockets for the terminal connectors
LED Illustration
The LEDs are shown in the illustration below.
LED Descriptions
The LEDs are described in the table below.
Indicator
Condition
Message
Ready
Green
Module is ready to communicate on network
Off
Module not ready to communicate
Upper row IN
1 ... 16
Green
Input status (an LED per input); input point active, i.e. input carries a 1 signal (logically ON)
Off
Input status (an LED per input); input point inactive, i.e. input carries a 0 signal (logically OFF)