Diagnostic functions
Chapter 7
TECHNICAL BULLETIN
V1.2.0en/05.02.16
Liability for errors and misprints excluded.
Profibus® Gateway SE
11
7
Diagnostic functions
7.1
On commissioning
The LEDs 1 (LSB), 2, 4 and 8 show the binary value of the version stored in the module if the Profibus
plug is unplugged and the position of the two switches S4 and S5 is set to zero. The standard version
has the number 1. The module immediately goes into communication mode with the device con-
nected to the serial interface if switch S4 is set to zero and the switch S5 to one before applying the
operating voltage. This tests the wiring to the temperature control unit. LED “8” has a special role. It
is illuminated when a command is sent from the Profibus Gateway SE via the serial interface and
turns off after a response has been received.
The Profibus plug must not be plugged in when in this mode!
To exit this mode, reset the two switches S4 and S5 to zero and interrupt the operating voltage for
about 30 seconds.
7.2
During operation
When communication is transmitted via the Profibus - recognizable by the green illuminated LEDs
Bus and State - LED “8” signals a communication of the Profibus Gateway SE via the serial interface.
The procedure is the same as described above.
7.3
Troubleshooting
Verify on the Profibus side whether the bus termination is set correctly. A difference between the
GSD file and the program in the Profibus Gateway SE may cause bus errors or incorrect data content.
The version is specified in the GSD file. It can be checked with the diagnostics function.
Summary of Contents for Profibus SE
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