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Device specifications
Communication interface modules (S500) > Modbus
Intended behavior of output
channel when the control
system stops
Substitute value for 5 s and
then turn off
Substitute value for 10 s and
then turn off
Group parameters for the digital part
Name
Input delay
Detect short cir-
cuit at outputs
Behaviour DO at
comm. error
Substitute value
at output
Detect voltage
overflow at out-
puts
1
) The parameters Behaviour DO at comm. error is only analyzed if the Failsafe-mode is ON.
2
) The state "externally voltage detected" appears, if the output of a channel DC0..DC7 should
be switched on while an externally voltage is connected
on page 731. In this case the start up is disabled, as long as the externally voltage is con-
nected. The monitoring of this state and the resulting diagnosis message can be disabled by
setting the parameters to "OFF".
754
Value
0.1 ms
1 ms
8 ms
32 ms
Off
On
Off
1
)
Last value
Last value 5 sec
Last value 10 sec
Substitute value
Substitute value 5 sec
Substitute value 10
sec
0 ... 255
Off
On
2
)
3ADR010278, 3, en_US
Required setting of the
module parameter "Behav-
iour of outputs in case of a
communication error"
Substitute value 5 sec
Substitute value 10 sec
Internal
value
0
1
2
3
0
1
0
1
6
11
2
7
12
00h ... FFh
0
1
Required setting of the
channel parameter "Substi-
tute value"
Depending on configuration
Depending on configuration
Internal value,
Default
type
BYTE
0.1 ms
0x00
BYTE
On
0x01
BYTE
Off
0x00
BYTE
0
0x0000
BYTE
On
0x01
Ä Chapter 1.7.4.1.3 "Connections"
2022/01/31
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