Siemens SIMATIC ET 200S - Page 268

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