Wieland samos PRO Manual page 28

Bit 7 Bit 6
Byte 0 Reserved Collective
error fast
shut-off
Byte 1 Module Module
state of state of
output input data
data
Byte 2
Test impul- Test impul-
se compa- se compa-
rison I8 vs. rison I7 vs.
X2 X1
Byte 3 Q4 Stuck-at
Q4 Stuck-at
low high
0: Stuck-at 0: Stuck-at
error error
1: no stuck- 1: no stuck-
at at
Module state bits of the SP-DIO I/O module
The module state bits have the following meaning if not otherwise indicated; normally only the first
byte of the total state is transmitted:
0 = error
1 = no error or reserved
Table 16: Meaning of the module state bits of the SP-DIO expansion module
Bit 7 Bit 6
Byte 0 Reserved Reserved
Byte 1
Module Module
state out- state input
put data data
Byte 2 Reserved
Byte 3
Reserved
Wieland Electric GmbH | BA000970 | 07/2019 [9855]
Bit 5 Bit 4 Bit 3
Power Configura- Not used
supply for tion of this (error his-
Q1 .. Q4 module is tory flag)
valid.
Reserved Reserved Two-
channel
evaluation
of input I7–
I8
Test impul- Test impul- Test impul-
se compa- se compa- se compa-
rison I6 vs. rison I5 vs. rison I4 vs.
X2 X1 X2
Q3 Stuck-at Q3 Stuck-at Q2 Stuck-at
low high low
0: Stuck-at 0: Stuck-at 0: Stuck-at
error error error
1: no stuck- 1: no stuck- 1: no stuck-
at at at
Bit 5 Bit 4 Bit 3
Power Configura- Not used
supply Y1- tion state (error his-
Y4 and IY5- tory flag)
IY8
Reserved Reserved Reserved
Product description
Bit 2 Bit 1 Bit 0
External Internal Not used
module module ("executing
state state state")
Two- Two- Two-
channel channel channel
evaluation evaluation evaluation
of input I5– of input I3– of input I1–
I6 I4 I2
Test impul- Test impul- Test impul-
se compa- se compa- se compa-
rison I3 vs. rison I2 vs. rison I1 vs.
X1 X2 X1
Q2 Stuck-at Q1 Stuck-at Q1 Stuck-at
high low high
0: Stuck-at 0: Stuck-at 0: Stuck-at
error error
error
1: no stuck- 1: no stuck- 1: no stuck-
at at at
Bit 2 Bit 1 Bit 0
External Internal Not used
module module ("executing
state state state")
Reserved Reserved Reserved
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