
4. CONFIRMATION OF
THE OPERATION START-UP PROCEDURE B-65165E/02
- 78 -
<2> Example of output to the channel 1
Internal data is output to channel 1 by setting it in an 8-bit D/A
convertor.
The output range of the D/A convertor varies from one printed-
circuit board to another. The output ranges from -5 V to +5 V
(printed-circuit board A20B-2001-0830) or from 0 V to +11 V
(printed-circuit board A20B-1005-0740) according to the internal
data that is set. See the table below.
Output on channel 1
Internal data in
binary (decimal)
Setting d-08
(whether there is
offset)
A20B-2001-0830 A20B-1005-0740
00000000( 0) 0 -5V 0V
11111111( 255) 0 +4.96V +11V
10000000(-128) 1 -5V 0V
00000000( 0) 1 0V +5.5V
01111111( 127) 1 +4.96V +11V
Example1 Data set
When the number of digits to shift data (d-06)=0 and when no offset is
provided (d-08=0): The last eight bits of data (BIT07 to BIT00) is set
in the D/A converter of the LM terminal.
BIT07 BIT00BIT01
Set in the D/A converter for channel 1 output
BIT06 BIT05 BIT04 BIT03 BIT02
Example2 Shifting data left
When the number of digits to shift data (d-06)=3, shift direction is right
(d-07=1), and no offset is provided (d-08=0): Data in BIT14 to BIT00
and the last three bits of data (=0) are set in the D/A converter.
BIT04 00
Set in the D/A converter for channel 1 output
BIT03 BIT02 BIT01 BIT00 0
Example3 Shifting data right
When the number of digits to shift data (d-06)=10, shift direction is
right (d-07=1), and no offset is provided (d-08=0): Data in BIT17 to
BIT10 is set in the D/A converter.
BIT17 BIT10BIT11
Set in the D/A converter for channel 1 output
BIT16 BIT15 BIT14 BIT13 BIT12