VIPA 300S SPEED7 - CP, Руководство пользователя

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Chapter 4 Deployment
Manual VIPA System 300S SPEED7
4-52 HB140E - CP - RE_342-1CA70 - Rev. 09/46
(de-)activate station
There is the possibility to deactivate respectively reactivate connected
slave stations and determine the state by means of the SFC 12.
If you configure slaves in a CPU which are not actually present or not
currently required, the CPU will nevertheless continue to access these
slaves at regular intervals. After the slaves are deactivated, further CPU
accessing will stop. In this way, the fastest possible CAN bus cycle may be
achieved and the corresponding error events no longer occur.
Note!
As long as any SFC 12 job is busy you cannot download a modified
configuration from your PG to the CPU.
The CPU rejects initiation of an SFC 12 request when it receives the
download of a modified configuration.
The SFC 12 operates asynchronously, this means, it is executed by
several SFC calls. The request is started by calling SFC 12 with
REQ
= 1.
The status of the job is indicated by the output parameters
RET_VAL
and
BUSY
. Calling the SFC 12 within the OB 100 is not supported.
If you have started a deactivation or activation job and you call SFC 12
again before the job is completed, the way in which the SFC reacts
depends largely on whether the new call involves the same job: if the
parameter
LADDR
matches, the SFC call is interpreted as a follow-on call.
Parameter Declaration Data type Memory block Description
REQ INPUT BOOL I,Q,M,D,L,
constant Level-triggered control parameter
REQ
=1: execute activation or deactivation
MODE INPUT BYTE I,Q,M,D,L,
constant
Job-ID
Possible values:
0: Request state (activated, deactivated)
1: activate station
2: deactivate station
LADDR INPUT WORD I,Q,M,D,L,
constant
Address CAN master VIPA 342-1CA70:
6000h + (n·100h) + Node-ID
(with n (1...8) slot at SPEED-Bus)
RET_VAL OUTPUT INT I,Q,M,D,L
If an error occurs while the function is
processed, the return value contains an
error code.
BUSY OUTPUT BOOL I,Q,M,D,L
BUSY
=1: Job is just active.
BUSY
=0: Job is just finished.
More information about the SFC 12 and its error messages may be found at
the manual "Operation list" with order-no.: VIPA HB140E_OPList.
Overview
Mit SFC 12 Station
(de-)aktivieren
Parameter
Error information