Name
Value
Internal
value
Internal value,
type
Default
Behaviour DO at
comm. 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 ... 65535
0000h ...
FFFFh
WORD
0
0x0000
Preventive
voltage feedback
monitoring for
DC0..DC7
2
)
Off
On
0
1
BYTE
Off
0x00
Detect voltage
overflow at out-
puts
3
)
Off
On
0
1
BYTE
Off
0x00
Remarks:
1
)
The parameter Behaviour DO at comm. error is apply to DC and DO
channels and only analyzed if the Failsafe-mode is ON.
2
)
The state "externally voltage detected" appears, if the output of a
channel DC0...DC7 should be switched on while an externally voltage
is connected. In this case the start up is disabled, as long as the exter-
nally voltage is connected. The monitoring of this state and the resulting
diagnosis message can be disabled by setting the parameters to "OFF".
3
)
The error state "voltage overflow at outputs" appears, if externally
voltage at digital outputs DC0...DC7 and accordingly DO8...DO15 has
exceeded the process supply voltage UP3
(see description in section). The according diagnosis
message "Voltage overflow on outputs " can be disabled by setting the
parameters on "OFF". This parameter should only be disabled in excep-
tional cases for voltage overflow may produce reverse voltage.
1.7.4.2.8 Diagnosis
Structure of the Diagnosis Block
Device specifications
Communication interface modules (S500) > Modbus
2022/01/31
3ADR010278, 3, en_US
782