Error
severity
Location Error
code
d1
d2
d3
d4
Description
Remedy
E4
iob
(I/O bus)
772
Module
number
1
Channel
number
0
Measurement over-
flow at an analog
output
Check
channel
wiring
E4
iob
(I/O bus)
775
Module
number
1
Channel
number
0
Measurement under-
flow at analog output
Check
channel
wiring
E4
iob
(I/O bus)
796
Module
number
1
0
0
Different configura-
tion
E4
iob
(I/O bus)
8482
Module
number
0
-
0
Timeout while
waiting for ready
status
E4
iob
(I/O bus)
8483
Module
number
0
-
0
Timeout during
parameterization
E4
iob
(I/O bus)
9480
Module
number
0
-
0
I/O module removed
from hot swap ter-
minal unit or defec-
tive module on hot
swap terminal unit.
Plug I/O
module,
replace I/O
module
E4
iob
(I/O bus)
9480
Module
number
0
0
0
Module removed
from hot swap ter-
minal unit
E4
iob
(I/O bus)
9500
Module
number
0
-
0
Wrong I/O module
replugged on hot
swap terminal unit
Remove
wrong I/O
module and
plug pro-
jected I/O
module
E4
iob
(I/O bus)
9514
Module
number
0
-
0
No communication
with I/O module on
hot swap terminal
unit
Replace I/O
module
E4
iob
(I/O bus)
9526
Module
number
0
-
0
I/O module does not
support hot swap
Power off
system and
replace I/O
module
E4
iob
(I/O bus)
9526
Module
number
0
0
0
Module on hot swap
terminal unit does
not support hot swap
functionality
E4
iob
(I/O bus)
9736
Module
number
0
-
0
Hot swap terminal
unit required, but not
found
E4
iob
(I/O bus)
9764
Module
number
0
0
0
Defective hot swap
terminal unit
E4
iob
(I/O bus)
9770
Module
number
0
-
0
No communication
with hot swap ter-
minal unit
Restart, if
error per-
sists replace
terminal unit
Appendix
Diagnosis messages via display of the processor module > Error severity E4: Warnings
2023/03/03
3ADR011074, 1, en_US
105