Siemens simatic et 200s Operating Instructions Manual page 271

Control Signals: Relative Positioning
Address
Byte 0
Bytes 1 to 3
Feedback Signals: Relative Positioning
Address
Byte 0
Bytes 1 to 3
Parameters: Relative Positioning
Parameters Meaning
Drive
Switch-off It defines the distance to the destination at which the drive
difference decelerates from creep feed to 0.
If the switch-off difference ≥ switchover difference, there is no
switchover point. There is no slowdown from rapid feed to
creep feed.
Switchover Defines the distance from the destination at which the drive is
difference slowed down from rapid feed to creep feed.
ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
Assignment
Bits 0.7 to 0.4:
Bit 7 6
0 1
Bit 2: DIR_M
Bit 1: DIR_P
Bit 0: START
Distance
(linear axis: 0 to 16 777 215; rotary axis: 0...16 777 215)
Assignment
Bit 3: SYNC
Bit 2: POS_ DONE
Bit 1: POS_ERR
Bit 0: POS_ACK
Actual value
(0 to encoder range - 1)
6.6 Functions of the 1PosSSI/Analog
5 4
MODE 4 = Relative Positioning
0 0
Value range
0 - 65 535
0 - 65 535
1PosSSI/Analog
Default setting
100
1000
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