Interrupting And Continuing Machining Programs In Ba 8 And Ba 9 - Siemens SIMATIC S5 Manual

Executing Machining Programs
4.3.3

Interrupting and Continuing Machining Programs in BA 8 and BA 9

You can interrupt and then continue a machining program processed by the IP247 positioning
module. In the automatic modes (mode 8 or mode 9), you interrupt the machining program as
follows:
a stop command for any mode,
external stop or
an operator error during the automatic mode.
Note
I
Data transfer jobs, e.g. inputting machine data, sent to the module while an auto-
matic mode is active, are not handled as an operator error and do not cause the
machining program to be interrupted. Since the axis is in operation, data manipula-
tion is not possible, This is rejected with the error message "axis active => entry
not possible",
Warnings or messages occurring during the processing of a machining program
(e.g. "axis active => entry not possible"), are only displayed for your information
(cf. Section 7.2.2.2 "Module Errors and Possible Causes"). These messages do not
influence the current oDeration.
If the program is interrupted, the error message "machining program waiting to continue" (PC:
65, COM247: FC1 ) is output. The axis status changes from "running" to "finished" (checkback sig-
nals), In this status, only the enter command in conjunction with the interrupted mode can con-
tinue the machining program.
Any other input, axis errors and the external stop change this status and delete or overwrite the
error message, If the new input is permitted and is consistent, it will be executed once the inter-
rupt status of the machining program is exited. The interrupted machining program can, how-
ever, no longer be continued. Zero offsets and tool length offsets already executed in the
machining program remain effective and must, if necessary, be cleared with mode 14 "clear zero
offset" or with mode 16 "tool length offset off". If a machining program is interrupted and then
started again, the error message "machining program waiting to continue" is cleared and the ma-
chining program is started from the beginning.
Only dwell times (G04) and traversing jobs (X function, G74) can be interrupted. An interruption
is, however, possible between two jobs (dwell times or traversing jobs), e.g. if the program is
waiting to start the next statement during a programmed halt (MOO) or in mode 9 "automatic
single statement".
Offsets (e.g. G57 or G43) and switchovers (e.g. G91 ) cannot be interrupted.
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