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206
8-7. Special Data Registers
Address
Name
Description
DT9096
DT9097
DT9098
DT9099
DT9100
DT9101
DT9102
DT9103
Digital value for
specifying analog
data output from
analog control
board No. 0
Digital value for
specifying analog
data output from
analog control
board No. 1
Digital value for
specifying analog
data output from
analog control
board No. 2
Digital value for
specifying analog
data output from
analog control
board No. 3
• These registers are used to specify data for analog output from the
analog control boards of the D/A converter boards or analog I/O boards.
• The range of digital value to specify analog output depends on the type
of analog control boards as follows:
<When D/A converter boards is installed>
Range of digital data for specifying analog output (10 bits): K0 to K999
(0 to 20 mA/0 to 5 V/0 to 10 V)
Note:
• Be sure to specify data within the range of K0 to K999.
- If data K1000 to K1023 is specified, analog data a little bit more than
the maximum rated value (20 mA/5 V/10 V) is output.
- If data outside K0 to K1023 is specified, data is handled
disregarding data in bit positions 10 to 15.
<EXAMPLE>
If K-24 is input, analog data is output regarding it as K999.
Data configuration when K-24 is input:
<When Analog I/O board is installed>
Range of digital data for specifying analog output (8 bits): K0 to K255
(0 to 20 mA/0 to 5 V/0 to 10 V)
Note:
• Be sure to specifying data within the range of K0 to K255. If data
outside K0 to K255 is specified, data is handled disregarding data in bit
positions 8 to 15.
<EXAMPLE>
If K-1 is input, analog data is output regarding it as K255.
Data configuration when K-1 is input:
• Be sure to use the
F0 (MV)
instruction to transfer data into these
special data registers.
Bit position
Binary data
1 1 1 1
11
8
3
0
15
•
•
12
•
•
•
•
7
4
•
•
1 1 1 1 1 1 1 0 0 1 1 1
K999
Data in bit positions 10 to 15 is ignored.
Bit position
Binary data
1 1 1 1
11
8
3
0
15
•
•
12
•
•
•
•
7
4
•
•
1 1 1 1 1 1 1 1 1 1 1 1
Data in bit positions 8 to 15 is ignored.
K255
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