Siemens IP-Module Manual descargar pdf (Pagina 148)

Machine Data, Modes and Traversing Programs IP 266

When G10 and M00 (programmed stop) are programmed in the same block,

M00 has priority. To continue the program, you must press the EXEC key.

The G10 function (flying change) is not permitted when the block to follow in

a flying change

• acts in the opposite direction

• contains a dwell

• contains only an M02

• is too short to reach the required final speed

• contains a change, a tool offset or a zero ofset

• contains a traversing path which is shorter than the preceding block's

deceleration distance

• could not be completely interpreted before the block containing the G10

finished executing

The traversing program interpreter aborts the program immediately when it

detects one of the above errors. Because the interpreter is always three blocks

ahead of the block currently executing, however, the program is aborted in

the current block rather than in the block that actually caused the error.

Example:

A traversing program containing eight positioning operations is to be pro-

cessed. The first seven blocks contain a G10 function, i. e. all blocks are to be

executed without stopping in "flying change" mode.

The eighth block, however, was programmed so that a change of direction

would ensue. The interpreter detects this error and aborts the fifth block, the

block currently executing.

Program: N10 G10 X50 F100

N20 G10 X80 F200

N30 G10 X130 F300

N40 G10 X155 F400

N50 G10 X200 F500 <--- Traversing program aborted

N60 G10 X240 F600

N70 G10 X280 F700

N80 X0 F800 <--- Block with error

N90 M02

5-76

EWA 4NEB 812 6057-02

1 2 ... 143 144 145 146 147 148 149 150 151 152 153 ... 359 360

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Siemens IP-Module Manual Pagina 148