MASS-STREAM
TM
Instruction Manual D-6300
9.17.104B
– Date of issue: 2018-12
Page 25 off 34
Table 2:
Red LED indications on digital instruments
(without using the micro switch)
Red LED
Time
Indication
off
continuously No error
short
flash
0.1 sec on /
2 sec off
Bus communication warning. Instrument functions o.k.
See specific fieldbus for more details
FLOW-BUS
PROFIBUS DP /
Modbus-RTU
DeviceNet
TM
Node is occupied
re-install instrument
No data exchange
between master
and slave
automatic recovery
Minor
communication
error
normal
flash
0.2 sec on /
0.2 sec off
Warning message
:
An error occurred of minor importance
It would be wise to investigate the cause of this
You are still able to work with your instrument
See specific fieldbus for more details
FLOW-BUS
PROFIBUS DP /
Modbus-RTU
DeviceNet
TM
No details
No details
No bus power
long
flash
2 sec on /
0.1 sec off
See specific fieldbus for more details
FLOW-BUS
PROFIBUS DP /
Modbus-RTU
DeviceNet
TM
Not used
For special service
purpose only
Serious
communication
error; manual
intervention
needed
on
continuously
Critical error message
A serious error occurred in the instrument
Instrument needs service before further using
Please note for Modbus-RTU: the red LED indicates bus activities and depending
on the baud rate can appear to be continuously lit