58 SM-Applications Modules & Motion Processors User Guide
Issue Number: 4
These 2 parameters (Pr
90.37,Pr 90.38) store the 16-bit turns in the upper word and 16-
bit position in the lower word, of the feedback (Pr
90.37) and reference (Pr 90.38)
encoders at the time the marker pulse was activated.
The state of the Reverse, Run and Stop keys can be read using this parameter. The
keys are represented by bits as follows:
Button presses from both LCD and LED Keypads will be seen.
Upon setting this parameter to a value it will execute one of the Second Processor
Event tasks.
Pr 90.38
Reference Encoder Marker Turns and Coarse Position
Access RO Range Signed 32-bit
Default N/A Update Rate See Pr 81.16
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Pr 90.39 Drive Keypad Button Status
Access RO Range Signed 16-bit
Default N/A Update Rate > 40ms
Value Description
b0 Rev
b1 Run
b2 Stop
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Pr 90.40 Event Task Trigger
Access RW Range Unsigned 16-bit
Default 0 Update Rate Immediate
Value Action
0 Do not trigger Event task
1 Trigger Event task
2 Trigger Event1 task
3 Trigger Event2 task
4 Trigger Event3 task
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