Direct Homing; Absolute Value Adjustment - Siemens SIMATIC S7-1500 Function Manual
Update 3
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Also See for SIMATIC S7-1500:
- System manual (393 pages) ,
- Function manual (362 pages) ,
- Manual (188 pages)
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Basics
3.14 Homing
3.14.11
Direct homing
Depending on the configured mode, the position of the positioning axis/synchronous axis or
external encoder technology objects can be absolutely or relatively set with "MC_Home".
Set position absolutely
Proceed as follows to set the position absolutely:
1. In the Motion Control instruction "MC_Home", enter the absolute position in the "Position"
parameter.
2. Call the Motion Control instruction "MC_Home" with parameter "Mode" = 0.
The position is set to the value specified in the "Position" parameter.
Set position relatively
Proceed as follows to set the position relatively:
1. In the Motion Control instruction "MC_Home", enter the relative position in the "Position"
parameter.
2. Call the Motion Control instruction "MC_Home" with parameter "Mode" = 1.
The position is set to the current position plus the value specified in the "Position" parameter.
3.14.12
Absolute value adjustment
In absolute value adjustment, Motion Control determines an absolute value offset, that is
retentively stored on the CPU.
Depending on the configured mode, the position of the axis or the encoder is absolutely or
relatively set in the "MC_Home" Motion Control instruction.
● Parameter "Mode" = 7 (absolute specification of position)
Position = value in parameter "Position"
● Parameter "Mode" = 6 (relative specification of position)
Position = current position + value in parameter "Position"
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S7-1500 Motion Control V13 Update 3
Function Manual, 07/2014, A5E03879256-AC
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