Stop Button On Terminal Box Plus - Siemens SIMATIC HMI 177 Operating Instructions Manual

5.1.4.2

STOP button on Terminal Box Plus

Introduction
A Terminal Box Plus differs from a Terminal Box Basic due to four relays that are mounted
on the board.
Figure 5-7
①
②
Switching states of the Stop or Emergency Stop circuit with Terminal Box Plus
The Stop or Emergency Stop circuit switching statuses for a connected Mobile Panel 177
with a STOP button and Terminal Box Plus are:
Mobile Panel 177
Connected
Connected
Not connected
Mobile Panel 177 (WinCC flexible)
Operating Instructions (Compact), Edition 07/2005
Terminal Box Plus
Relay
Board
STOP button
Not pressed
Pressed
-
Operator elements and displays
Status of the Stop or Emergency Stop circuit
The Stop or Emergency Stop circuit remains closed.
The Stop or Emergency Stop circuit is open.
The system being monitored is shut down.
The Stop or Emergency Stop circuit remains closed.
5.1 Mobile Panel
5-7