Lenze DDS System bus CAN for PLC - Manual (Page 111)

System bus (CAN) for Lenze PLC devices
CAN system blocks
7.7 CAN_Synchronization (node number: 102)
7−23
L
PLC−Systembus EN 2.0
7.7 CAN_Synchronization (node number: 102)
This SB can be used to synchronise the internal time base of the controller to the instant of reception
of the sync telegram or of a terminal signal. Thus, the start of cyclic and time−controlled internal
processes (e. g. data transfer from tasks to the DCTRL function block) is effected in a synchronous
manner for all controllers involved in the synchronisation.
CAN_bSyncForInterpolator_b
CAN_Synchronization
CAN_bResetSyncForInterpolartor_b
CAN_nSyncDeviation
CAN_bSyncInsideWindow_b
2
1 Sync telegram
Sync
Control
C1121
C1123
C1122
C0369
C0366
C0363
C1120
C0367
C0368
Sync signal
0 Off
Fig. 7−7 CAN_Synchronizationsystem block
Variable Data type Signal type Address Display
code
Display
format
Notes
CAN_bSyncInsideWindow_b
Bool Binary
%IX102.0.0
− −
TRUE:
Sync telegram/signal within the
time slot (C1123)
FALSE:
·
Exit synchronicity
·
No sync telegram/signal
·
Time slot (C1123) too small
CAN_bSyncForInterpolator_b %IX102.0.1 TRUE:
Sync telegram/signal recognised
CAN_nSyncDeviation Integer − %IX102.1 Current sync deviation
CAN_bResetSyncForInterpolator
_b
Bool Binary
%QX102.0.0 TRUE:
Reset CAN_bSyncForInterpolator_b
Operating mode
Code LCD Possible settings IMPORTANT
Lenze Selection
[C1120] Sync mode 0 CAN sync. source
0 Off Synchronisation deactivated.
1 Synchronisation via system bus (CAN) Synchronisation by sync telegram
via system bus.
2 Synchronisation via terminal Synchronisation by sync signal via
terminal:
·
9300 Servo PLC: X5/E5
·
Drive PLC: X3/I1
·
ECSxA: X6/DI1
Axis synchronisation via system bus (CAN)
The system bus transmits both the sync telegram and the process signals.
Example for applications:
·
Specification of cyclic, synchronised position setpoint information for multi−axis applications
via the system bus.