svn://software/hardware/LC4D/100218/docs/LC4D_MAN.doc
MRR
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Dedicated I/O
Several inputs and outputs are dedicated to particular functions and route directly into the MPU11
processor section of the Oak. As can be seen in the “Oak I/O Map” section, these I/Os are mapped after normal
PLC space, starting at location 769. Probing and MPG functions use the dedicated I/O.
Analog Output
Oak is equipped with five analog outputs. Four outputs are used to request motion from axis drives and
are fixed in the -10V to 10V range. Because these four outputs are controlled at a low level, this section will
focus on the analog output accessible from the PLC program, which normally is used as a speed request to the
spindle drive.
Four voltage output ranges are available on the analog output. Outputs 15 and 16 are used to select the
output range. The analog output is factory trimmed for high accuracy, and will not require adjustment when
changing ranges.
Oak Analog Output Ranges
Output 15
Output 16
Range
Resolution
1
1
-10 to 10
16 bits
1
0
-5 to 5
15 bits
0
1
0 to 5
14 bits
0
0
0 to 10
15 bits
-
+
DAC
GROUND
+1 2 VDC
An alo g Out p ut
-1 2 VDC
Internal Circuitry
An alo g Ground
Analog Output
Содержание OAK
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