Operating Instructions

Table Of Contents
Chapter 2Hardware Features
TX-I/O Product Range Overview
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118
Siemens Industry, Inc.
Owner's Manual
553-104
Building Technologies
2018-10-01
TX-I/O Module Product Diagram
TX-I/O Module Symbols and Status LEDs
LED, Symbol, or Feature
LED or Symbol
Indication
1
Address key and module status
LED (green)
-
Module status as a whole (as opposed to the I/O points).
ON
Normal operation. 24 Vac (supply voltage) input present; fuse is
intact.
OFF
Error.
- No 24 Vac (supply voltage) input.
- Fuse is blown.
Flashing or pulsing
- Fault indication
- No address key
- Remote override
2 I/O point numbers
-
-
3 Terminal number
-
-
4 Test terminal
-
5 Connection terminals
-
6
-
System neutral.
-
Configurable point.
-
Output (arrow pointing OUT from center of module).
-
Input (arrow pointing IN toward center module).
-
24 Vdc output (field supply).
-
24 Vac output (field supply).
7 Override status LEDs (yellow)
ON
Manual operation; a local override is active.
OFF
No voltage or manual operation off.
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