Guarding - BONFIGLIOLI Vectron Active Cube User Manual

11.8

Guarding

Guarding response:
The inverter responds to every guarding request of the PLC. This is used by some
PLCs when powering on to search for available devices. This response is done always
independent of the settings of objects
Factor.
Guarding activation:
The Guarding is set whenever objects
Factor
are both unequal to zero. The resulting guarding time is
Factor
. Guarding is activated after setting the objects and on reception of the first
guarding request.
Guarding fault behavior:
If the inverter does not receive a guarding request within the specified guarding time
a guarding event is triggered. The inverter's reaction to this guarding event is defined
by objects
Guarding sequence:
The PLC sends via a RTR (Remote Transmission Request) a guarding request with
Identifier 0x700 (= 1792) + Node-ID (no data bytes). This remote frame is answered
by the inverter with the same Identifier and one data byte. The data byte contains a
toggle bit and the NMT state of the inverter.
PLC:
Identifier
0x700 (=1792)+ Node-ID RTR
Inverter:
Identifier
0x700 + Node-ID
t:
NMT state:
04/13
abort connection option code
0x6007
7 6
t
Toggle bit toggled on each transmission (first transmission t = 0)
0
4
5
0x7F (=127)
CM-CAN ACU
Guard Time
0x100C/0
Guard Time
0x100C/0
and 0x1029
Byte 0
NMT state + toggle bit
5 4
NMT state
Boot-Up
Stopped
Operational
Pre-Operational
Lifetime
and 0x100D/0
Lifetime
and 0x100D/0
Guard Time x Lifetime
error behavior
.
3 2 1 0
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