Siemens simatic et 200s Operating Instructions Manual page 93

Feedback Signals: Reference Signal Evaluation
Address
Byte 0
Bytes 1 to 3
Byte 4
Parameters: Reference Signal Evaluation
Parameters
Reference point run and evaluation of the reference signal
Reference signal
Reference switch
Evaluating the Reference Signal: Causes of Errors for JOB_ERR
Error Number
23
30
ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
Assignment
Bit 3: SYNC
Actual value
(linear axis: 0 to 16 777 215; rotary axis: 0 to end of rotary axis - 1)
Bit 1: JOB_ERR
Bit 0: JOB_ACK
Meaning
This parameter defines the relevant
switch or the combination of switch and
zero mark.
Relevant in the case of reference signal:
Reference switch and zero mark
•
Reference switch
•
This parameter defines the referencing
direction in which the switch must be
traversed.
Meaning
ERR_ENCODER is displayed
Evaluating the Reference Signal: Reference
point coordinates ≥ end of rotary axis
3.6 Functions of the 1PosInc/Digital
Value range
Reference switch and
•
zero mark
Reference switch
•
Zero mark
•
Reduction cam towards
•
minus
Reduction cam towards
•
plus
Minus limit switch
•
Plus limit switch
•
What to Do
Check the encoder wiring
1PosInc/Digital
Default setting
Reference switch and
zero mark
Reduction cam
towards minus
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