DL205 Analog Manual, 7th Edition Rev. D
9-21
Chapter 9: F2-02DA-2, F2-02DA-2L, 2-Channel Analog Voltage Output
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If the output range format of ±2047 is used (also most commonly used with bipolar voltage
ranges), the data values must be specified as either positive or negative. The previous example
could be used with an addition to activate the sign output bit, or use the following example
which uses individual contacts to determine the sign bit status for each channel.
WARNING: DO NOT USE THIS METHOD if the sign information is embedded into the data value by adding
8000 to it. Use the previous example.
NOTE:
Do not exceed a value of 2047 for
±2047 output data formats.
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Loads the data for channel 1 into the accumulator.
Load data into the accumulator.
SP7
SP1
Send data to V-memory assigned to the module.
BIN
Convert the data to binary (you must omit this step if
you have converted the data to binary).
SP1 is always on.
OUT
V40501
LD
V2000
SP7
LD
V2001
Loads the data for channel 2 into the accumulator.
The OUT instruction sends the data to the module. Our
example starts with V40501, but the actual value
depends on the location of the module in your
application.
OUT
Y37
SP7
Select the channel to update.
Selects channel 1 for update when Y34 is OFF
(Y35--ON deselects channel 2). Note, Y34 and Y35 are
used due to the previous examples. If the module was
installed in a different I/O arrangement, the addresses
would be different.
Selects channel 2 for update when Y35 is OFF
(Y34--ON deselects channel 1). Note, Y34 and Y35 are
used due to the previous examples. If the module was
installed in a different I/O arrangement, the addresses
would be different.
X2
The permissive X1 activates Y37 (sign bit) during a
channel 1 update scan. The permissive X2 activates
Y37 during a channel 2 update scan. The sign bit (Y37
ON) indicates that the value is negative. You could use
another permissive, such as a CR, etc.
X1
OUT
Y34
SP7
OUT
Y35
SP7
SP7
Содержание DL205
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