Set Reference Point - Siemens S7-300 Operating Instructions Manual

Settings

10.4 Set reference point

10.4 Set reference point
Definition
The "set reference point" setting is used to synchronize the axis. This setting shifts the
working area. All shifts generated by a zero offset or "set actual value" function are retained.
The setting maps the working range onto the axis. Different value settings will thus move the
working range to different positions within the physical range of the axis.
Requirement
Cam processing must be disabled.
Programming steps
1. Write the value for the reference point coordinate to the channel DB.
2. Set the relevant trigger bit.
Data used in the channel DB
Address
36.3
98.0
25.0
110
– Linear axis:
The reference-point coordinate may not exceed the range of the software limit
switches. This also applies to the reference point coordinate in a shifted coordinate
system.
– Rotary axis:
Rule for the reference point coordinate:
0 ≤ reference point coordinate < end of rotary axis
Name
REFPT_EN BOOL
REFPT DINT
SYNC BOOL
Type Initial value
FALSE
L#0
FALSE
Comment
1 = set reference point coordinate
Reference point coordinate
1 = axis synchronized
FM 352 electronic cam controller
Operating Instructions, 05/2011, A5E01071724-03