Analog input modules
D300529 0115 - BL67 I/O modules6-18
6.3.3 Diagnostic and status messages
LED status displays
Diagnostic data
This module has the following diagnostic data available per channel
:
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Diagnostics Meaning
NOTE
Table 6-9:
LED status dis-
plays
LED Display Meaning Remedy
D red, flashing,
0.5
Hz
Diagnostics pending -
Red Module bus communication
failure
Check if more than two ad-joining
electronics modules have been
pulled. This concerns modules
located between this module and
the gateway.
OFF No error messages or diagnos-
tics
–
------Wire break Measured value
out o
f range
Table 6-10:
Diagnostics
Measured value out of range Indicates an over- or undervoltage of 1 % of the
set voltage range.
Overvoltage:
–U
max
(U > 10,1 V)
Undervoltage:
–U
min
(U < -10,1 V)
for -10 bis +10 VDC
–U
min
(U < -0,1 V)
for 0 bis +10 VDC
In the 12-bit-representation (left-justified) the diagnostic data are transmitted with the lower
nibble of the process data for the respective channel.