Technology modules
D300529 0115 - BL67 I/O modules12-82
12.5.9 Diagnostic and status messages
LED status messages
REG_WR_DATA 0 to
2
32-1
Value, which has to be written to the register defined via
REG_WR_ADR.
Table 12-10:
LED displays
LED Display Meaning Remedy
DIA Red,
flashing,
0.5 Hz
Diagnostic message pending
Red Module bus communication
failure
Check if more than two ad-joining
electronics modules have been
pulled.
Check the supply of the module
bus.
off No error messages or diagnos-
tics
–
A/Z Green Input A active -
Red Input Z active
Red
and green
Inputs A and Z active
off Inputs A and Z inactive
B Green Input B active or direction input
set for down counting
-
off Input B inactive -
DIO0/DIO1 Green Channel active -
Red Overload at output x -
off channel inactive
DO2/DO3 Green Output active
Red Overload at output x
off Output inactive
DI2/DI3 Green Input active -
off Input inactive -
Table 12-9:
Process output
data of the mod-
ule
Bit Value Meaning
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