Siemens SINUMERIK 840D sl Function Manual page 709

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SD42990 $SC_MAX_BLOCK_IN_IPOBUFFER has global, channel-specific validity and can

also be modified in a part program. This modified value is maintained at program end. If this

setting data is to be reset again on defined events, a so-called event-driven program must be

created to do this. For example, this setting data could always be set to a predefined value

The IPO buffer limitation can be used whenever the number of blocks between block

preparation and interpolation must be minimized, e.g., when actual positions in the part

program must be read and processed for other purposes.

N100 $SC_MAX_BLOCKS_IN_IPOBUFFER = 5

............

N200 $SC_MAX_BLOCKS_IN_IPOBUFFER = -1

............

Basic logic functions: Mode group, channel, program operation, reset response (K1)

Function Manual, 11/2006, 6FC5397-0BP10-2BA0

Detailed description

2.9 Program control

Limitation of IPO buffer to 5

Cancellation of the IPO

buffer limitation

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