NSD Varlimit VS-212DN, User Manual

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6-7
(b) Scaling binary current position value:
With this format, the scaling binary value (indicating the machine's current position) is converted
into the appropriate unit (inch/mm) value. The 'minimum current position value' is then added,
with the result being expressed as a scaling binary value:
Scaling binary value = Scale length/131072
×
sensor binary value+ minimum current position value
Example:
With position detection executed by a 32-turn MRE sensor with a scale length of 32000, minimum
current position value of -1000, the scaling binary value will be as shown below when the
machine's actual position is at the 150 mm point:
The scaling binary value at the 150 mm position will be as follows:
32000/131072
×
65536 + (-1000) = 15000
6.4 Parameter Settings
When writing the parameters, set ”1” to the corresponding bit of the I/O address 4 (sequence mode
selection).
When sequence mode is selected, data stored in the buffer memory for data communication with the
PLC is loaded to the VS-212DN when the PLC Ready signal turns ON.
[Setting sequence]
(a) Turn the PLC Ready signal OFF.
(b) Set “1” to parameter (PRM) of I/O address 4 (sequence mode selection ).
(c) Write the setting value to buffer memory addresses 16397 to 16405 (16461 to 16469).
(d) Turn the PLC Ready signal ON.
(e) Writing is completed when operation status (status 1: 7 bit) has turned ON.
Important:
Parameter setting shall not exceed 10000 times.