40
10.3 Module “Output”
This module allows the user to
●
read the binary inputs of the process interface IO-1 … IO-4 .
●
write to binary outputs of the process interface IO-1 … IO-4 .
●
read the diagnostic information of the evaluation unit .
PLC process data output image (Module Output)
Byte no .
Bit
7
6
5
4
3
2
1
0
1
0
DR
0
0
0
HC
0
C/Qo
2
0x00
3
0x00
,,
…
19
0x00
20
0x00
Description byte 1, “Control byte”:
Bit
Value
Description
Remark
C/Qo
0
Drive output at C/Qo low
-
1
Drive output at C/Qo high
-
HC
0
Allow lowside and highside output current
of max . 0 .5A at C/Qo
Bit HC only valid on channel IO-3 and channel IO-4 .
(Output driver is in Push/Pull mode)
1
Allow highside output current of max . 1A
at C/Qo
Bit HC only valid on channel IO-3 and channel IO-4 .
(Output driver is in Push mode)
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 Output)
Byte no .
Bit
7
6
5
4
3
2
1
0
1
Diag
DR-RDY
0
0
OL
HC
I/Q
C/Qi
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
