Rockwell-automation 2098-IPD-xxx Ultra5000 C Programming using the Mot Uživatelský manuál stáhnout pdf (Strana 94)

Publication 2098-PM001E-EN-P — July 2002

2-54 Referencing the Motion Library

Latch Services

long LatchOnIndex(long channel, long encoder, long rising);

Arms a latch to trigger on an encoder index. The channel argument

selects the latch channel. The encoder argument selects which

encoder index triggers the latch.

Valid channel arguments are:

• 1 = Primary motor latch

• 2 = Secondary motor latch

• 3 = Primary auxiliary latch

• 4 = Secondary auxiliary latch

Valid encoder arguments are:

• 1 = Motor Encoder Index

• 2 = Auxiliary Encoder Index

Valid rising arguments are:

• 0 = Falling edge of encoder index pulse

(This is the default argument.)

• Non-zero = Rising edge of encoder index pulse

Returns 0 if successful, or -1 on an error.

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