E1..E4
d1
d2
d3
d4
Identi-
fier
000..063
AC500-
Display
<− Display in
Class
Comp
Dev
Mod
Ch
Err
PS501
PLC
Browser
Byte 4
Bit 6..7
-
Byte 1
Byte 2
Byte 3
Byte 4
Bit 0..5
PNIO
diag-
nosis
block
Class
Inter-
face
Device
Module
Channel Error-
Identi-
fier
Error message
Remedy
1
)
2
)
3
)
4
-
31/1...10 31
31
34
No response during
initialization of the
I/O module
Replace
I/O
module
4
-
31
31
31
11
Process voltage
UP3 too low
Check
process
supply
voltage
4
-
31
31
31
45
No process voltage
UP3
Check
process
supply
voltage
4
-
31
31
31
10
Voltage overflow
on outputs (above
UP3 level)
5
)
Check
termi-
nals/
check
process
supply
voltage
Channel error digital
4
-
31
2
0...7
46
Externally voltage
detected at digital
output DO0...DO7
6
)
Check
terminals
4
-
31
2
0...7
47
Short circuit at dig-
ital output
7
)
Check
terminals
Channel error analog
4
-
31
1
0..3
48
Analog value over-
flow or broken wire
at an analog input
Check
value or
check
terminals
4
-
31
1
0..3
7
Analog value
underflow at an
analog input
Check
value
4
-
31
1
0..3
47
Short circuit at an
analog input
Check
terminals
Device specifications
Communication interface modules (S500) > Modbus
2022/01/31
3ADR010278, 3, en_US
758
