1.7.2.2.8 Diagnosis
Byte Number Description
Possible Values
1
Diagnosis byte, slot number
31 = CI581-CN (e. g. error at integrated 8 DI /
8 DO)
1 = 1st connected S500 I/O module
...
10 = 10th connected S500 I/O module
2
Diagnosis byte, module
number
According to the I/O bus specification passed
on by modules to the fieldbus master
3
Diagnosis byte, channel
According to the I/O bus specification passed
on by modules to the fieldbus master
4
Diagnosis byte, error code
According to the I/O bus specification
Bit 7 and bit 6, coded error class
0 = E1
1 = E2
2 = E3
3 = E4
Bit 0 to bit 5, coded error description
5
Diagnosis byte, flags
According to the I/O bus specification
Bit 7: 1 = coming error
Bit 6: 1 = leaving error
In cases of short circuit or overload, the digital outputs are turned off. The module performs
reactivation automatically. Thus, an acknowledgement of the errors is not necessary. The error
message is stored via the LED.
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
CANope
n diag-
nosis
block
Class
Inter-
face
Device
Module
Channel Error-
Identi-
fier
Error message
Remedy
1
)
2
)
3
)
4
)
Module errors
3
-
31
31
31
19
Checksum error in
the I/O module
Replace
I/O
module
3
-
31
31
31
3
Timeout in the I/O
module
3
-
31
31
31
40
Different hard-/firm-
ware versions in
the module
Device specifications
Communication interface modules (S500) > CANopen
2022/01/31
3ADR010278, 3, en_US
645
