Programmable Output Duration - Siemens SINUMERIK 828D Function Manual

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Programmable output duration

User-specific auxiliary functions, for which the output behavior "Output duration of an OB1 cycle (slow

acknowledgement)" was parameterized, can be defined for individual outputs via the parts program guide QU

(Quick) for auxiliary functions with quick acknowledgement.

An auxiliary function with quick acknowledgment is defined in a part program block with the following syntax:

<Type>[<Address extension>]=QU(<Value>)

Different behavior for the output of the auxiliary functions M100 and M200 in a parts program. The output

behavior of the auxiliary functions is parameterized as follows:

Output duration one OB1 cycle (slow acknowledgment)

Output during motion

Output duration one OB1 cycle (slow acknowledgment)

Output prior to motion

Program code

N10 G94 G01 X50 M100

N20 Y5 M100 M200

N30 Y0 M=QU(100) M=QU(200)

N50 M100 M200

Without a traverse movement, auxiliary functions are always output to the PLC immediately.

The following figure shows the time sequence of the part program. Please note the time difference during the

processing of parts program blocks N20 and N30.

Basic Functions

Function Manual, 09/2011, 6FC5397-0BP40-2BA0

Output of M100: during the motion

Acknowledgment: slow

Output of M200: prior to the motion

Output of M100: during the motion

Acknowledgment: slow

Output of M200: prior to the motion

Output of M100: during the motion

Acknowledgement: quick

Output of M200: immediate 1)

Output of M100: immediate 1)

Acknowledgment: slow

H2: Auxiliary function outputs to PLC

8.8 Programmable output duration

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