Lenze DDS Global Drive PLC Developer Studio - Manual (Page 25)

Function library LenzeCanDSxDrv.lib
Functions/function blocks
3.9 L_CanDSxNodeGuarding − Execution of "Node Guarding"
3−13
L
LenzeCanDSxDrv.lib EN 1.2
4. Use C0383 to select the factor for the monitoring time ("NodeLifeTime") in the PLC to be
monitored. The value must correspond to the setting at the FB input byNodeLifeTimeFactor:
Code LCD Possible settings Info
Lenze Selection
C0383 LifeTimeFact. 0 System bus: Node Guarding (slave):
NodeLifeTimeFactor
0 {1} 255
Tip!
The "NodeLifeTime" results from the settings for the "NodeGuardTime" (C0382) and the
"NodeLifeTimeFactor" (C0383) in the PLC to be monitored:
NodeLifeTime = NodeGuardTime(C0382)
ž
NodeLifeTimeFactor (C0383)
·
Unless the PLC to be monitored receives a status enquiry from the monitoring PLC within the
"NodeLifeTime", a "Life Guarding" event will be activated in the PLC to be monitored.
5. Use C0384 of the PLC to be monitored to select how the PLC to be monitored shall respond
to a "Life Guarding" event:
Code LCD Possible settings Info
Lenze Selection
C0384 Err NodeGuard 3 System bus: Node Guarding (slave):
Response to a "Life Guarding" event.
0 TRIP
1 Message
2 Warning
3 Off
4 Fail QSP
6. Set code C0003 of the PLC to be monitored to "1" to save the new settings fail−safe.
7. Set code C0358 of the PLC to be monitored to "1" to carry out a CAN reset node.
– As an alternative, the CAN reset node can also be carried out by means of a fresh power−on.
After the CAN reset node, the PLC to be monitored has been configured as "Node Guarding slave"
and the monitoring can be activated in the "Node Guarding master".