Mitsubishi Electric Q62DAN - 3.4.5 D;A conversion enable;disable (buffer memory address 0: Un\G0); 3.4.6 Digital value (buffer memory address 1 to 8: Un\G1 to Un\G8)

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MELSEC-Q
3 SPECIFICATIONS
3.4.5 D/A conversion enable/disable (buffer memory address 0: Un\G0)
(1) Set whether D/A conversion is enabled or disabled for each channel.
(2) It is necessary to set Operating condition setting request (Y9) to on/off to validate
D/A conversion enable/disable. (Refer to Section 3.3.2.)
(3) By default, all channels are set to D/A conversion disabled.
(4) When the Q62DAN and Q62DA are used, b2 to b7 (CH3 to CH8) become
invalid.
When the Q64DAN and Q64DA are used, b4 to b7 (CH5 to CH8) become invalid.
POINT
Design the system so that D/A conversion enable/disable (buffer memory address
0: Un\G0) changes to "Enable" after the external power (refer to Section 4.3) is
supplied.
Analog output may not properly be performed if the external power is not at the
specified voltage.
3.4.6 Digital value (buffer memory address 1 to 8: Un\G1 to Un\G8)
(1) This area is used to write digital values for performing D/A conversion from the
programmable controller CPU as 16-bit signed binary code.
(2) If a value outside the settable range is written, the upper or lower limit value of
the range is used for D/A conversion. (Refer to Table 3.11.) Also, if this happens,
a check code and an error code will be stored in CH
Set value check code
(buffer memory address 11 to 18 : Un\G11 to 18) and Error code (buffer memory
address 19 : Un\G19) respectively.
(3) For the Q62DAN and Q62DA, Un\G3 to Un\G8 (CH3 to CH8) become invalid.
For the Q64DAN and Q64DA, Un\G5 to Un\G8 (CH5 to CH8) become invalid.
Table 3.11 Output range settings and valid range
Output range setting
Normal resolution mode
High resolution mode
Valid range
(practical range)
Digital value that is set
when a value outside the
valid range is written
Valid range
(practical range)
Digital value that is set
when a value outside the
valid range is written
0: 4 to 20 mA
0 to 4095
(Practical range:
0 to 4000)
4096 or larger: 4095
–1 or smaller: 0
0 to 12287
(Practical range:
0 to 12000)
12288 or larger: 12287
–1 or smaller: 0
1: 0 to 20 mA
2: 1 to 5 V
3: 0 to 5 V
4: –10 to 10 V
–4096 to 4095
(Practical range:
–4000 to 4000)
4096 or larger: 4095
–4097 or smaller: –4096
–16384 to 16383
(Practical range:
–16000 to 16000)
16384 or larger: 16383
–16385 or smaller: 16384
F: User range setting
–12288 to 12287
(Practical range:
–12000 to 12000)
12288 or larger: 12287
–12289 or smaller: –12288
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
CH
4
CH
3
CH
2
CH
1
1: D/A conversion disabled
0: D/A conversion enabled
Un\G0
00000000
For Q62DAN, Q62DA, information for b2 to b15 is fixed at 0.
CH
5
CH
6
CH
7
CH
8
For Q64DAN, Q64DA, information for b4 to b15 is fixed at 0.