33
UK
12.1 Module “Inactive”
This module allows the user to:
●
switch off an unused process interface IO-1 … IO-4
●
read the diagnostic information of the evaluation unit
PLC process data output image (Module Inactive)
Byte no .
Bit
7
6
5
4
3
2
1
0
1
0
DR
0
0
0
0
0
0
2
0x00
3
0x00
,,
. .
19
0x00
20
0x00
Description byte 1, “Control byte”:
Bit
Value
Description
Remark
DR (1)
0
No read request
Data byte 2 … 20 of the PLC process data input image
is set to 0x00 .
0 -> 1
Read diagnostics of the evaluation unit
-
1
Diagnostics read request active
DR must be kept on 1 until the diagnostics response is
available .
(1) Diagnostics is only available, if bit “Diag” within the response data is set .
Description Byte 2…20:
Not used . Should be set to 0x00 within the PLC process data output image .
PLC process data input image (Module Inactive)
Byte no .
Bit
7
6
5
4
3
2
1
0
1
Diag
DR-RDY
0
0
0
0
0
0
2
0x00 / Number of diagnostic events
3
0x00 / Error code byte 1
4
0x00 / Error code byte 2
5
0x00 / Error code byte 3
6
0x00 / Error code byte 4
. .
. .
20
Not used
