E1...E4
d1
d2
d3
d4
Identifier
000...063
AC500
display
<− Display in
Class
Comp
Dev
Mod
Ch
Err
PS501
PLC
Browser
Byte 6
Bit 6...7
-
Byte 3
Byte 4
Byte 5
Byte 6
Bit 0...5
PNIO
diagnosis
block
Class
Interface
Device
Module
Channel
Error
Identifier
Error message
Remedy
1
)
2
)
3
)
4
)
4
14
1...10
3
0...1
48
Analog value overflow
at an analog output
Check
output
value or
terminal
11 / 12
ADR
1...10
4
14
1...10
3
0...1
7
Analog value underflow
at an analog output
Check
output
value
11 / 12
ADR
1...10
Remarks:
1
)
In AC500 the following interface identifier applies:
14 = I/O bus, 11 = COM1 (e.g. CS31 bus), 12 = COM2.
The PNIO diagnosis block does not contain this identifier.
2
)
With "Device" the following allocation applies:
31 = module itself, 1...10 = expansion module 1...10, ADR = hardware
address (e. g. of the DC551-CS31)
3
)
With "Module" the following allocation applies dependent of the master:
Module error: I/O bus or PNIO: 31 = module itself; COM1/COM2: 1...10 =
expansion 1...10
Channel error: I/O bus or PNIO = module type (1 = AI, 3 = AO); COM1/
COM2: 1...10 = expansion 1...10
4
)
In case of module errors, with channel "31 = Module itself" is output.
State LEDs
LED
State
Color
LED = OFF
LED = ON
LED flashes
PWR
Process
voltage
24 V DC via
terminal
Green CPU module
voltage or
external
24 V DC
supply voltage
is missing
3.3 V system
voltage (I/O
bus) and
external
24 V DC supply
voltage are
present
---
ERR
Channel or
module error
Red
No error or
process
voltage is
missing
Severe error in
the module
Error on 1 or
more chan-
nels of the
module
Device specifications
I/O modules > Analog I/O modules
2022/01/31
3ADR010278, 3, en_US
401
