Automatic Mode (Mode 8) - Siemens SIMATIC S5 Manual

IP 266
5.3.8

Automatic Mode (Mode 8)

Automatic mode
Mode
A traversing program (TP) is started in automatic mode. Before you can start a
traversing program, you must write it and store it on the IP 266 (see Section 5-4).
The program may contain
• positioning operations
• coordinate shifts
• corrections and
• dwells.
The IP 266 executes all programmed operations in succession. You run the pro-
gram by invoking the Start function. Program execution always begins with the
first block in the program.
The Stop function aborts the program. Any zero offsets invoked during program
execution are retained, i. e. they are not reset. Zero offsets are reset only when
the program executes in its entirety.
In automatic mode, enabled tool offsets are retained after the program
terminates or is aborted.
If a traversing program processes a rotary axis, it is preset for traversing to the
target position over the shortest possible path. Because the IP 266 itself computes
the shortest path, and thus the direction of travel, you must be aware of the
possible results of a flying change; if you have programmed a flying change, you
must know in advance whether such a change is permissible or whether it will
result in an error.
Note:
A machining program that was aborted with 'Stop' cannot be resumed at the
point of interruption.
EWA 4NEB 812 6057-02
Machine Data, Modes and Traversing Programs
Program number
Parameters
Start/Stop
Function
5-43