turck BL20 Series - 8.9.5 Diagnostic and status messages

197
2020/09
8.9.5 Diagnostic and status messages
LED status displays
LED Display Meaning Description/remedy
DIA Red,
flashing
0.5 Hz
Diagnostics pending -
Red Module bus communi-
cation failure
Check if more than two ad-joining electronics mod-
ules have been pulled.
Check the supply of the module bus.
Off No error messages or
diagnostics
–
11/21 Red
flashing
0.5 Hz
Wire break/short circuit
(if parameterized as
diagnostics)
Red Over- or underflow of
the measurement value
(if channel is parameter-
ized as 4...20 mA)
Red, 4 Hz
both LEDs
alternating
Hardware error Exchange the module..
Off Channel ok
1H/ 2H Green HART-communication
ok
The HART-status is only shown in active HART-com-
munication. The status-display is either realized
acyclically or via polling operation (depending on
the parameterization). With acyclical monitoring
the information (LED) is turned off after 1.5 sec-
onds. Further HART-communication retriggers the
LED.
Red
flashing
0.5 Hz
HART communication
error
no communication
or
high number of CRC-
errors
Red HART-status-flag (if
HART-status polling has
been parameterized,
see parameter
Mode)
Off No HART communica-
tion
NOTE
The LEDs 11 and 1H are assigned to channel 1 and the LEDs 21 and 2H to channel 2 of the
module.