Jetter JetWeb JX2-CNT1, User Manual

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10.5 Reference Offset JetWeb
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10.5 Reference Offset
The offset in register 3xx1 "Dual-channel counter - Offset" can be used to shift the
count value in register 3xx0 into positive or negative direction. This way, the
reference position is shifted accordingly. In doing so, the reference position of the
mechanical system remains unchanged.
The reference position offset has the following effect on register 3xx0 "Count value":
Example
The count value of the dual-channel counter is zeroed using the reference function
(register 3xx0 = 0). Via offset register 3xx1 the reference position is to be set to
10,000 increments.
– The user enters 10,000 into register 3xx1.
– The count value is set to 10,000 increments, or to a value around 10,000 if the
incremental encoder has moved during this process or is between 2 PPR counts
and is permanently oscillating.
Status bit 12 = 0
Register 3xx1: Dual-channel counter - offset
Function Description
Read Actual reference position offset of the dual-channel
counter
Write New reference position offset of the dual-channel
counter
Value range - 8.388.608 ... + 8,388,607 [increments]
Value following reset 0
R3xx0 (count) = internal count + R3xx1 (reference position offset)