Lenze DDS System bus CAN for PLC Manual de usuario Pagina 108

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7.6 CAN_Management (node number: 101)
System bus (CAN) for Lenze PLC devices
CAN system blocks
7−20
L
PLC−Systembus EN 2.0
7.6 CAN_Management (node number: 101)
By using this SB
· a reset node can be activated, e. g. to accept changes with regard to the baud rate and
addressings.
· Communication error, Bus−off state, and further states can be processed in the PLC
program.
· the instant of transmission of CAN2_OUT and CAN3_OUT can be influenced.
CAN_bResetNode_b
CAN_Management
C0358
CAN2_OUT
CAN_bCe2CommErrCanIn2_b
CAN_ResetNode
CAN_bTxCan2Synchronized_b
CAN1_IN
Communication error
CAN2_IN
Communication error
CAN3_IN
Communication error
CAN
Bus off state
CAN_bCe1CommErrCanIn1_b
CAN_bCe3CommErrCanIn3_b
CAN_bCe4BusOffState_b
CAN_SYNC
CAN3_OUT
CAN_bTxCan3Synchronized_b
CAN_SYNC
1
CAN
Node address (C0350)
CAN
State (C0359)
CAN_byNodeAddress
CAN_byState
CAN_bFreePdoTxBufferOverflow_b
Free PDO Tx
buffer overflow
Free PDO Rx
overflow
Overrun life time
CAN_bFreePdoRxOverflow_b
CAN_bOverrunLifeTime_b
Fig. 7−6 CAN_Management system block
Note!
The process image for this SB is generated in a fixed system task (interval: 1 ms).
7.6.1 Inputs_CAN_Management
Variable Data type Signal type Address Display
code
Display
format
Notes
CAN_bCe1CommErrCanIn1_b
Bool Binary
%IX101.0.0
CAN1_IN communication error
CAN_bCe2CommErrCanIn1_b %IX101.0.1 CAN2_IN communication error
CAN_bCe3CommErrCanIn1_b %IX101.0.2 CAN3_IN communication error
CAN_bCe4BusOffState_b %IX101.0.3 CAN bus "off state" recognised
CAN_bFreePdoTxBufferOverflow_b %IX101.0.4 Transmit request memory overflow
CAN_bFreePdoRxOverflow_b %IX101.0.5 Receive memory overflow
CAN_bOverrunLifeTime_b %IX101.0.6 "Node life time" exceeded
CAN_byNodeAddress
Byte
%IB101.2
C0350
CAN mode address
CAN_byState %IB101.3
C0359
CAN status
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