12. ABSOLUTE POSITION DETECTION SYSTEM
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12.8 Communication-based absolute position transfer system
12.8.1 Serial communication command
The following commands are available for reading absolute position data using the serial communication
function. When reading data, take care to specify the correct station number of the driver from where the
data will be read.
When the master station sends the data No. to the slave station (driver), the slave station returns the data
value to the master station.
(1)Transmission
Transmit command [0] [2] and data No. [9] [1].
(2)Reply
The absolute position data in the command pulse unit is returned in hexadecimal.
12.8.2 Absolute position data transfer protocol
(1)Data transfer procedure
Every time SON turns on at power-on or like, the PC or PLC...etc must read the current position data in
the driver. Not performing this operation will cause a position shift.
Time-out monitoring should be performed by the PC or PLC...etc.
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