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MELSEC-Q
3 SPECIFICATIONS
3.4.9 Setting range (buffer memory address 20, 21: Un\G20, Un\G21)
(1) This area is used to confirm the setting range of the D/A converter module.
Settings for channels 1 to 4 are stored in Un\G20.
Settings for channels 5 to 8 are stored in Un\G21.
(2) For the Q62DAN and Q62DA, b8 to b15 (CH3 and 4 information) for Un\G20 and
Un\G21 (information of CH5 to CH8) are invalid.
For the Q64DAN and Q64DA, Un\G21 (CH5 to CH8 information) is invalid.
Output range Setting value
4 to 20 (mA) 0H
0 to 20 (mA) 1H
1 to 5 (V) 2H
0 to 5 (V) 3H
–10 to 10 (V) 4H
User range setting FH
(3) The default is 0
H. The Q68DAVN and Q68DAV are operated in 2H (1 to 5 V)
setting even when 0
H (default) is set for the output range setting so that 2H will be
stored.
POINT
Setting ranges cannot be changed by using Setting range (buffer memory
addresses 20, 21: Un\G20, Un\G21).
Change the setting range in the Switch setting for I/O and intelligent function
module dialog box. (Refer to Section 4.5.)
3.4.10 Offset/gain setting mode Offset/gain specification
(buffer memory address 22, 23: Un\G22, Un\G23)
(1) Specifies the channel to be adjusted for the offset/gain settings.
(2) Specification can be made for 1 channel only.
An offset/gain setting mode error (Error code 500) will occur if more than one
channel is specified at the same time.
(3) For the Q62DAN and Q62DA, b2 to b7 (CH3 to CH8) are invalid.
For the Q64DAN and Q64DA, b4 to b7 (CH5 to CH8) are invalid.
(4) Refer to Section 4.6 for the details of the offset/gain settings.
b15 b12 b11 b8 b7 b4 b3 b0
CH4 CH3 CH2 CH1
to to to to
CH8 CH7 CH6 CH5
Un\G20 (setting range CH1 to CH4)
Un\G21 (setting range CH5 to CH8)
b15b14b13b12b11b10b9b8b7b6b5b4b3b2b1b0
0 CH4 CH3 CH2 CH1
Un\G22 (Offset specification)
0000000
0 CH4 CH3 CH2 CH1
Un\G23 (Gain specification)
0000000
1: Channel to be set
0: Invalid
For Q62DAN, Q62DA, b2 to b15 information is fixed at 0.
CH8 CH7 CH6 CH5
CH8 CH7 CH6 CH5
For Q64DAN, Q64DA, b4 to b15 information is fixed at 0.
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