Product description
Wieland Electric GmbH | BA000970 | 11/2016 (Rev. F)
Table 10: Meaning of the module state bits of the safe I/O modules SP-SDI and SP-SDIO
Reserved Collective
error fast
shut-off
Power
supply for
Q1 .. Q4
Configura-
tion of this
module is
Not used
(error his-
tory flag)
External
module
state
Internal
module
state
Not used
("execut-
ing state")
Module
state of
output
data
Module
state of
input data
Reserved Reserved Two-
channel
evaluation
of input
Two-
channel
evaluation
of input
Two-
channel
evaluation
of input
Two-
channel
evaluation
of input
Test im-
pulse
compari-
son I8 vs.
Test im-
pulse
compari-
son I7 vs.
Test im-
pulse
compari-
son I6 vs.
Test im-
pulse
compari-
son I5 vs.
Test im-
pulse
compari-
son I4 vs.
Test im-
pulse
compari-
son I3 vs.
Test im-
pulse
compari-
son I2 vs.
Test im-
pulse
compari-
son I1 vs.
Q4 Stuck-
at low
0: Stuck-at
error
1: no
Q4 Stuck-
at high
0: Stuck-at
error
1: no
Q3 Stuck-
at low
0: Stuck-at
error
1: no
Q3 Stuck-
at high
0: Stuck-at
error
1: no
Q2 Stuck-
at low
0: Stuck-at
error
1: no
Q2 Stuck-
at high
0: Stuck-at
error
1: no
Q1 Stuck-
at low
0: Stuck-at
error
1: no
Q1 Stuck-
at high
0: Stuck-at
error
1: no
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 11: Meaning of the module state bits of the SP-DIO expansion module
Reserved Reserved Power
supply Y1-
Y4 and
Configura-
tion state
Not used
(error his-
tory flag)
External
module
state
Internal
module
state
Not used
("execut-
ing state")
Module
state out-
Module
state input
Reserved Reserved Reserved Reserved Reserved Reserved