Siemens SIMATIC ET 200S - Page 137

1PosInc/Analog
4.6 Functions of the 1PosInc/Analog
ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
137
When the assigned parameter conditions are met, the axis is synchronized. The
1PosInc/Analog sets the feedback signal SYNC = 1, assigns the reference point coordinates
to the actual value, and decelerates to 0 V.
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Figure 4-12 Sequence of Execution of the Search for Reference
Control Signals: Search for Reference
Address Assignment
Bits 0.7 to 0.4:
7 6 5 4 Bit
0 0 1 1
MODE 3 = Reference Point Run
Byte 0
Bit 2: DIR_M
Bit 1: DIR_P
Bit 0: START
Bytes 1 to 3 Reference point coordinates
(linear axis: 0 to 16 777 215; rotary axis: 0 to end of rotary axis - 1)