System manual CECX / PROFIBUS Slave interface module CECX-F-PB-S-V1
CECX-II 26-4
26.4 Operating elements and displays
26.4.1 Status LED (STATUS)
Color Function
Orange Start-up
Green Firmware is in status "RUN"
Flashing red Fatal error
Flashing green (approx. 2 Hz)
The superior system (Profibus Master) has signaled a
Reset and is still in Reset status.
Flashing green (approx. 4 Hz) The set address is invalid (> 125)
26.4.2 Bus error LED (BUS FAULT)
Color Function
Dark
Device is exchanging data with the DP-master (Data-
Exchange status)
Red No Baud rate or no master identified
Flashing red (approx. 4 Hz)
Device has identified the Baud-rate, but is not ad-
dressed by the master. The device was not or wrongly
projected by the master.
26.4.3 DIP-switch for PROFIBUS-address
The PROFIBUS-station address is set via the DIP-switch.
PROFIBUS supports the address range 3 … 125. A change of the
PROFIBUS-station address via the DIP-switch cannot occur during running
operation. Only after the CPU has been restarted will the changed station
address become effective.
OFF ON
2
0
2
1
2
2
2
3
2
4
2
5
2
6
nc
1: * 0 = +0
2: * 0 = +0
4: * 1 = +4
8: * 0 = +0
16: * 0 = +0
32: * 0 = +0
64: * 0 = +0
= 4
Example for the setting of the PROFIBUS-station address
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