YSI IQ SensorNet MIQ/A-PR Module - Manual (Page 17)

MIQ/(A-)PR Interface for the PROFIBUS
17 ba76020e01 01/2012
3.2.4 PROFIBUS and module monitoring
The PROFIBUS module has 4 LEDs for monitoring the bus and one
LED for monitoring the PROFIBUS module. These 5 LEDs are
important aids for the monitoring and diagnosis of faults.
Bus monitoring The LEDs have the following meaning:
Fig. 3-11 LEDs for bus monitoring
LED Color Meaning
1 - Not used
2 Green The module is online (recognized by the
PROFIBUS master), data exchange is possible.
Off - The module is not online
3 Red The module is offline, data exchange is not
possible.
Off - The module is not offline
4 Flashes
red
at a
freq. of: 1 Hz - error in the configuration:
During the initialization of the module, IN and/or
OUT data word length does not correspond to the
data word length in the configuration of the
PROFIBUS master (GSD file).
2 Hz - error in the user settings:
During the initialization of the module, the data
word length/content setting in the user settings
does not correspond to the data word length/
content setting in the configuration of the
PROFIBUS master (GSD file).
4 Hz - error during the initialization of the ASIC for
PROFIBUS communication.
Off - No error diagnostics available.
4
1
2
3