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Table 99: Substitute value
Intended behavior of
channel 0 when the control
system stops
Output OFF
Last value
Substitute value
Diagnosis
E1...E4
d1
Class
Comp
Byte 6
-
Bit 6...7
Class
Interface
1
)
Module error
3
14
11 / 12
3
14
11 / 12
3
14
11 / 12
3
14
11 / 12
3
14
11 / 12
3
14
11 / 12
3
14
11 / 12
3
14
11 / 12
4
14
11 / 12
Channel error
4
14
2022/01/31
d2
d3
Dev
Mod
Byte 3
Byte 4
Device
Module
2
)
3
)
1...10
31
ADR
1...10
1...10
31
ADR
1...10
1...10
31
ADR
1...10
1...10
31
ADR
1...10
1...10
31
ADR
1...10
1...10
31
ADR
1...10
1...10
31
ADR
1...10
1...10
31
ADR
1...10
1...10
31
ADR
1...10
1...10
3
3ADR010278, 3, en_US
Required setting of the
module parameter "Behav-
iour of outputs in case of a
communication error"
OFF
Last value
OFF or Last value
d4
Identifier
000...063
Ch
Err
Byte 5
Byte 6
Bit 0...5
Channel
Error
Identifier
4
)
31
19
31
3
31
40
31
43
31
36
31
9
31
26
31
11
31
45
0...15
48
Device specifications
I/O modules > Analog I/O modules
Required setting of the
channel parameter "Substi-
tute value"
0
0
1...65535
AC500
<− Display in
display
PS501
PLC
browser
FBP diag-
nosis
block
Error message
Checksum error in the
I/O module
Timeout in the I/O
module
Different hard-/firmware
versions in the module
Internal error in the
module
Internal data exchange
failure
Overflow diagnosis
buffer
Parameter error
Process voltage too low Check
Process voltage is
switched off (ON ->
OFF)
Analog value overflow
at an analog output
Remedy
Replace
I/O module
Replace
I/O module
Replace
I/O module
Replace
I/O module
Replace
I/O module
New start
Check
master
process
voltage
Process
voltage ON
Check
output
value
495
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