Checking The Status And Error Indicators - Siemens SIMATIC S7-400 Hardware And Installation Manual

8.7.7

Checking the Status and Error Indicators

Switching On an M7-400 for the First Time
When the supply voltage is switched on, all status and error indicators of the CPU
of your M7-400 light up briefly. If the mode switch is set to STOP, the STOP
status/error indicator lights up after switching on. Otherwise the module boots up.
In the event of a fault, the INTF indicator lights up.
If this is not the case with your modules, please consult your Siemens contact at a
maintenance and repair center or call the SIMATIC hotline.
This completes preparations for operation as covered in this manual.
The remaining stages, such as installing the operating system and the user
program, can be found in the M7-SYS User Manual .
S7-400 and M7-400 Programmable Controllers, Installation Manual
C79000-G7076-C424-01
www.gkbpx.com
Assembling the M7-400
8-45