Lütze 746400, Operation Instructions Manual, Page: 63 / 89

Digital I/O Modules
▪
Digital Outputs
59
11.5.5 Diagnosis
The error status of the output driver is entered in the status byte. For every output
one byte is entered. The module status flags stays “0“.
There is no Hardware error if the output is 0. If the output is “1“ there is an
overload on the output channel.
Bit i = 0:Switching status of output channel DOx is off.
Bit i = 1:Switching status of input channel DOx is on.
Bit i = 0: No error on the output channel driver DOx.
Bit i = 1: Short circuit or overtemperature at the output channel DOx.
Byte 1 (Read-back Byte)
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 0 Switching
Status
(actual)
Output
Channel
DO 6 Switching
Status
(actual)
Output
Channel
DO 5 Switching
Status
(actual)
Output
Channel
DO 4 Switching
Status
(actual)
Output
Channel
DO 3 Switching
Status
(actual)
Output
Channel
DO 2 Switching
Status
(actual)
Output
Channel
DO 1
Byte 2 (Status Output Driver)
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 0 Statuts
Output
Driver
Channel
DO 6 Statuts
Output
Driver
Channel
DO 5 Statuts
Output
Driver
Channel
DO 4 Statuts
Output
Driver
Channel
DO 3 Statuts
Output
Driver
Channel
DO 2 Statuts
Output
Driver
Channel
DO1