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3. SPECIFICATIONS MELSEC-A
3-13
3.6.2 Digital value setting area for channels 1 through 4
(1) This area is used to write the digital value for the D/A conversion from the programmable
controller CPU.
(2) The digital values at all channels become "0" in the following conditions:
(a) After the power is turned on, when the remote READY (RX(n+1)B) is turned on.
(b) After the reset of the programmable controller CPU, when the remote READY (RX(n+1)B) is
turned on.
(3) The digital value can be set as 16-bit signed binary data and within the available setting range of
the digital value resolution.
If a value beyond the range of the digital value resolution is set, the data in Table 3.7 is applied
for the D/A conversion.
In addition, the checking code is stored in the set value checking code storage area (addresses
from RWrn to RWrn+3).
Table 3.7 Available setting range of the digital value
Model Name Available setting range
Digital value for the D/A conversion
when the value beyond the range is set
AJ65BT-64DAV
-2048 to 2047
(Practical range: -2000 to 2000)
2048 or higher: 2047
-2049 or lower: -2048
AJ65BT-64DAI
0 to 4095
(Practical range: 0 to 4000)
4096 or higher: 4095
-1 or lower: 0
3.6.3 Analog output enable/prohibit channel
(1) Enable or prohibit of the external output of the analog value from each channel is set in this area.
(2) Output is prohibited at all channels in the following conditions:
(a) When the power is turned on.
(b) When the power is reset.
Note that when initial data processing is finished, (module ready turns on, and) the output is
enabled at all channels with the default values of 0.
(3) Enable/prohibit of the external output is set to 0 or 1 for each channel.
(a) 0 ............ Enabled
(b) 1 ............ Prohibited
(4) Configuration of the output enable/prohibit area for each channel is as follows: