Operation
Operating Manual PNOZ m ES Profibus
1002698-EN-05
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7
Operation
7.1
Messages
When the supply voltage is switched on, the PNOZmulti safety system copies the configur-
ation from the chip card.
The LEDs “POWER”, “DIAG”, “FAULT”, “IFAULT” and “OFAULT” will light up on the base
unit.
The expansion module PNOZ m ES Profibus is configured and started automatically. The
"ONLINE" and "OFFLINE" LEDs indicate the status of the PNOZ m ES Profibus on
PROFIBUS-DP.
If the expansion module PNOZ m ES Profibus does not receive a configuration from the
base unit for a period of 30 s, the expansion module PNOZ m ES Profibus connects to
PROFIBUS-DP and the "ONLINE" status is displayed on the PROFIBUS-DP. The error
message "No Connection with Base Module" is sent to the Master.
Legend
LED on
LED flashes
LED off
LED
Meaning
POWER
Supply voltage is present
Supply voltage is not present
ONLINE
PNOZ m ES Profibus Online, data exchange is possible
Master has sent the telegram "Global Control Clear". Virtual input bits i0 ...
i127 are set to "0".
PNOZ m ES Profibus Not online
OFFLINE
PNOZ m ES Profibus Offline, data exchange is not possible
PNOZ m ES Profibus Not offline