IO-BUS reset after PROFINET reconnection controls the behavior of PROFINET CI modules in
relation to connected I/O modules (both safety and non-safety I/O modules).
● IO-BUS reset after PROFINET reconnection =
“On”
resets and, thus, re-parameterizes
all attached I/O modules. All internal I/O modules states are reset, including the related
diagnosis information.
Note that if the parameter is set to
“On”
then:
–
The bumpless re-start of non-safety I/O modules will not be supported. It means, for
example, that non-safety output channels will go from fail-safe values to
“0”
values
during the re-connection and re-parameterization time and after that go to new output
values.
–
Safety I/O modules will be re-parameterized and re-started as newly started modules,
which may not require their PROFIsafe reintegration, depending on safety CPU state, in
the safety application.
● IO-BUS reset after PROFINET reconnection =
“Off”
will not reset all attached I/O modules. It
will re-parameterize I/O modules only if parameter change is detected during the reconnec-
tion. All internal I/O modules states are not reset, including the related diagnosis informa-
tion.
Note that if the parameter is set to
“Off”
then:
–
The bumpless re-start of non-safety I/O modules is supported (if no parameters are
changed). It means, for example, that non-safety output channels will not go from fail-
safe values to
“0”
values during the re-connection and re-parameterization time, but
directly from fail-safe values to new output values.
–
Safety I/O modules will not be re-parameterized (if no parameters are changed). Thus,
they may continue their operation, which may require their PROFIsafe reintegration in
the safety application on the safety CPU, e.g., if PROFIsafe watchdog time for this
safety I/O module has expired. Any reintegration of such safety I/O modules will be
not only application specific but also PROFIsafe specific and depend on the safety I/O
handling in the safety application.
Group parameters for the analog part
Name
Value
Internal value
Internal value,
type
Default
Analog data
format
Standard
Reserved
0
255
BYTE
0
Behaviour AO at
comm. error *)
Off
Last value
Last value 5 s
Last value 10 s
Substitute value
Substitute value
5 s
Substitute value
10 s
0
1
6
11
2
7
12
BYTE
0
*) The parameter Behaviour AO at comm. error is only analyzed if the Failsafe-mode is ON.
IO-BUS reset
after PROFINET
reconnection
Device specifications
Communication interface modules (S500) > PROFINET
2022/01/31
3ADR010278, 3, en_US
817
