Siemens SINUMERIK 828D Function Manual

H2: Auxiliary function outputs to PLC
8.8 Programmable output duration
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
433
8.8 Programmable output duration
Function
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.
Syntax
An auxiliary function with quick acknowledgment is defined in a part program block with the following syntax:
<Type>[<Address extension>]=QU(<Value>)
Example
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:
•M100
- Output duration one OB1 cycle (slow acknowledgment)
- Output during motion
•M200
- Output duration one OB1 cycle (slow acknowledgment)
- Output prior to motion
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.
Program code Comment
N10 G94 G01 X50 M100 ;
;
Output of M100: during the motion
Acknowledgment: slow
N20 Y5 M100 M200 ;
;
;
Output of M200: prior to the motion
Output of M100: during the motion
Acknowledgment: slow
N30 Y0 M=QU(100) M=QU(200) ;
;
;
Output of M200: prior to the motion
Output of M100: during the motion
Acknowledgement: quick
N40 X0
N50 M100 M200 ;
;
;
Output of M200: immediate 1)
Output of M100: immediate 1)
Acknowledgment: slow
M17
1)
Without a traverse movement, auxiliary functions are always output to the PLC immediately.

Siemens SINUMERIK 828D Specifications

General

Brand	Siemens
Model	SINUMERIK 828D
Category	Control Systems
Language	English