ABB AC500 PLC - Group Parameters for the Digital Part; 1.7.1.2.8 Diagnosis

Intended Behavior of Output
Channel when the Control
System Stops
Required Setting of the
Module Parameter
"Behavior of Outputs in
Case of a Communication
Error"
Required Setting of the
Channel Parameter "Substi-
tute value"
Substitute value for 5 s and
then turn off
Substitute value 5 sec Depending on configuration
Substitute value for 10 s and
then turn off
Substitute value 10 sec Depending on configuration
Group Parameters for the Digital Part
Name Value Internal value Internal value,
type
Default
Input delay 0.1 ms
1 ms
8 ms
32 ms
0
1
2
3
BYTE 0.1 ms
0x00
Detect short cir-
cuit at outputs
Off
On
0
1
BYTE On
0x01
Behavior digital
outputs at com-
muncation error
1
)
Off
Last value
Last value 5 sec
Last value 10 sec
Substitute value
Substitute value
5 sec
Substitute value
10 sec
0
1
6
11
2
7
12
BYTE Off
0x00
Substitute value
at output
0 ... 255 00h ... FFh BYTE 0
0x00
Detect voltage
overflow at out-
puts
2
)
Off
On
0
1
BYTE Off
0x00
1
) The parameter Behavior digital outputs at communcation error is only analyzed if the failsafe
mode is ON.
2
) The state "externally voltage detected" appears if the output of a channel DC0..DC7 is to be
switched on while an external voltage is connected Ä Chapter 1.7.1.2.3 “Electrical Connec-
tion” on page 704. In this case, the start-up is disabled as long as the external voltage is con-
nected. The monitoring of this state and the resulting diagnosis message can be disabled by
setting the parameters to "OFF".
1.7.1.2.8 Diagnosis
Structure of the Diagnosis Block via CANOM_NODE_DIAG
Device Specifications
Communication Interface Modules (S500) > CANopen
2019/04/17 3ADR010121, 13, en_US 725