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
3
0..1
4
Analog value over-
flow at an analog
output
Check
output
value
4
-
31
3
0..1
7
Analog value
underflow at an
analog output
Check
output
value
Remarks:
1
)
In AC500 the following interface identifier applies:
"-" = Diagnosis via bus-specific function blocks; 0 ... 4 or 10 = Position of the
Communication Module;14 = I/O bus; 31 = Module itself
The identifier is not contained in the CI521-MODTCP diagnosis block.
2
)
With "Device" the following allocation applies: 31 = Module itself; 1..10 =
Expansion module
3
)
With "Module" the following allocation applies:
31 = Module itself
Module type (1 = AI, 2 = DO, 3 = AO)
4
)
This message appears, if externally voltages at one or more terminals
DO0...DO7 cause that other digital outputs are supplied through that voltage
Chapter 1.7.4.1.3 “Connections” on page 731
. All outputs of the apply
digital output groups will be turned off for 5 seconds. The diagnosis message
appears for the whole output group.
5
)
The voltage on digital outputs DO0...DO7 has overrun the process supply
Chapter 1.7.4.1.3 “Connections” on page 731
. Diagnosis
message appears for the whole module.
6
)
This message appears, if the output of a channel DO0...DO7 should be
switched on while an externally voltage is connected. In this case the start
up is disabled, as long as the externally voltage is connected. Otherwise this
could produce reverse voltage from this output to other digital outputs. This
diagnosis message appears per channel.
7
)
Short circuit: After a detected short circuit, the output is deactivated for
100ms. Then a new start up will be executed. This diagnosis message
appears per channel.
Device specifications
Communication interface modules (S500) > Modbus
2022/01/31
3ADR010278, 3, en_US
759
