Fail-Safe Operation; Connecting The Connecting Cable - Siemens SIMATIC HMI Series Operating Instructions Manual

Fail-safe operation

The content of this section applies only to fail-safe Mobile Panels in a hardwired or
PROFIsafe-based F-system.
9.1

Connecting the connecting cable

NOTICE
The status of keyswitch and illuminated pushbuttons is evaluated immediately after
connection.
When you connect an HMI device to the connection box and evaluate operator controls
over PROFINET IO as direct buttons:
The status of the keyswitch, the illuminated pushbuttons and the corresponding LEDs is
evaluated immediately. This can cause unintentional responses.
Check the position of the keyswitch and do not activate the illuminated pushbutton before
or during connection.
Requirement
● The Mobile Panel is ready for operation.
● There is a project on the Mobile Panel.
Procedure
Connecting to a connection box without an assigned operating mode
Note
If the connection box has not yet been assigned an operating mode, the emergency stop /
stop button does not light up when the connecting cable is plugged in.
1. Plug the connecting cable into a connection box.
The "Safety operation" dialog is displayed.
2. Select the required operating mode as described in
"Assigning a safety-related operating mode (Page 142)".
3. Start the project.
The emergency stop / stop button does or does not light up depending on the selected
operating mode, see the following sections.
Mobile Panels 2nd Generation
Operating Instructions, 09/2018, A5E33876626-AC
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