307
2020/09
10.5.5 Diagnostic and status messages
LED status displays
LED Display Meaning Remedy
DIA Red,
flashing
0.5 Hz
Diagnostics pending -
Red Module bus communi-
cation failure or field
voltage UL not con-
nected.
Check if more than two ad-joining electronics mod-
ules have been pulled.
Check the field voltage
U
L.
Off No error messages or
diagnostics
–
11/21 Red
flashing
0.5 Hz
Wire break (if parame-
terized as diagnostics)
Red Invalid value see also diagnostics Invalid value
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.
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