Operation
Operating Manual PSSu H m F DPsafe SN SD
1002933-EN-04
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8.2.1
MBUS
The "MBUS" LED indicates the status of the FS and ST module bus.
Colour
Status
Meaning
- - -
No modules present
Green
FS and ST module bus are operating without fault
Red
Operating state "Safe condition of all FS outputs on the
PSSu system" or
Unable to locate at least one module
(e.g. a module has been removed during operation, actual/
registered hardware does not match)
Operating state "FS module bus in a STOP condition with
error: Major FS error"
