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
31
31
45
Process voltage
UP3 too low
Check
process
voltage
4
-
31
31
31
46
Reverse voltage
from digital out-
puts DO8...DO15 to
UP3
4
)
Check
terminals
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
Process voltage
UP3 gone
Check
process
supply
voltage
4
-
31
31
31
10
Voltage overflow
at outputs (above
UP3 level)
5
)
Check
termi-
nals/
check
process
supply
voltage
Channel error digital
4
-
31
2
8..15
46
Externally voltage
detected at digital
output DO8...DO15
6
)
Check
terminals
4
-
31
4
0...7
46
Externally voltage
detected at digital
output DC0...DC7
6
)
Check
terminals
4
-
31
4
0...7
47
Short circuit at
digital output
DC0...DC7
7
)
Check
terminals
4
-
31
2
8...15
47
Short circuit at
digital output
DO8...DO15
7
)
Check
terminals
Device specifications
Communication interface modules (S500) > Modbus
2022/01/31
3ADR010278, 3, en_US
786