Manual VIPA System 300S SPEED7
Chapter 4
Deployment
HB140E - CP - RE_342-1CA70 - Rev. 09/46
4-53
When a station is deactivated by the SFC 12, its state is set to pre-
operational (safety state).
The assigned master does not continue to address this slave. Deactivated
slaves are not identified as fault or missing by the error LEDs on the
master or CPU.
The process image of the inputs of deactivated slaves is updated with 0, it
is just handled as failed slaves.
If you are using your program to directly access the user data of a
previously deactivated slave, the I/O access error OB (OB 122) is called,
and the corresponding start event is entered in the diagnostic buffer.
Deactivating a slave does not start the program execution error OB 85,
even if its inputs or outputs belong to the system-side process image to be
updated. No entry is made to the diagnostics buffer.
Deactivating a slave does not start the slave failure OB 86, and the
operating system also does not make an entry in the diagnostics buffer.
If a station fails after you have deactivated it with SFC 12, the operating
system does not detect the failure. As a result, there is no subsequent start
of OB 86 or diagnostics buffer entry. The station failure is detected only
after the station has been reactivated and indicated in
RET_VAL
.
Note!
With VIPA the whole slave stations may not be deactivated.
At least 1 slave station should remain activated.
When you reactivate a slave with SFC 12 it is configured and assigned with
parameters by the designated master (as with the return of a failed station).
This activation is completed when the slave is able to transfer user data.
Activating a slaves does not start the program error OB 85, even if its
inputs or outputs belong to the system-side process image to be updated.
An entry in the diagnostic buffer is also not made.
Activating a slave does not start the slave failure OB 86, and the operating
system also does not make an entry in the diagnostics buffer.
Note!
Activating a slave may be time-consuming. Therefore, if you wish to cancel
a current activation job, start SFC 12 again with the same value for
LADDR
and
MODE
= 2. Repeat the call of SFC 12 until successful
cancellation of the activation is indicated by
RET_VAL
= 0.
Deactivate
slave stations
Activate
slave stations
Содержание 300S SPEED7 - CP
Страница 1: ...VIPA System 300S SPEED7 CP 342 1CA70 Manual HB140E_CP RE_342 1CA70 Rev 09 46 November 2009...
Страница 4: ...Contents Manual VIPA System 300S SPEED7 ii HB140E CP RE_342 1CA70 Rev 09 46...
Страница 8: ...Safety information Manual VIPA System 300S SPEED7 4 HB140E CP RE_342 1CA70 Rev 09 46...
Страница 92: ...Chapter 4 Deployment Manual VIPA System 300S SPEED7 4 54 HB140E CP RE_342 1CA70 Rev 09 46...
Страница 94: ...Index Manual VIPA System 300S SPEED7 A 2 HB140E CP RE_342 1CA70 Rev 09 46 M Stich...
