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3.4 Buffer Memory
3.4.2 A/D conversion enable/disable setting (Un\G0)
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SPECIFICATIONS
3.4.2 A/D conversion enable/disable setting (Un\G0)
(1) Set whether to enable or disable A/D conversion for each channel.
For the Q66AD-DG, the A/D conversion enable/disable setting also acts as the ON/
OFF setting of the supply power to the 2-wire transmitter.
Note that power is supplied to only the 2-wire transmitters whose channels use input
ranges of "4 to 20mA (2-wire transmitter input): 0
H", "4 to 20mA (Extended mode)
(2-wire transmitter input): A
H" or "User range setting (2-wire transmitter input): FH".
No power is supplied when any other input range is used.
(2) It is necessary to set the operating condition setting request (Y9) to ON/OFF in order
to validate the A/D conversion enable/disable setting. (Refer to Section 3.3.2.)
(3) The Q68AD-G is preset to enable A/D conversion on all channels.
The Q66AD-DG is preset to disable A/D conversion on all channels.
[Setting example of Q68AD-G]
When channel 1 and 3 are set to enable A/D conversion, 00FA
H is stored.
[Setting example of Q66AD-DG]
When channel 2 and 4 are set to enable A/D conversion, 0035
H is stored.
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
CH4 CH3 CH2 CH1CH8 CH7 CH6 CH5
0: A/D conversion enable
1: A/D conversion disable
0Un\G0 0 0 0 0 0 0 0
For Q68AD-G, information of b8 to b15 is fixed at 0.
For Q66AD-DG, information of b6 to b15 is fixed at 0.
0: A/D conversion enable, supply power ON
1: A/D conversion disable, supply power OFF
Q68AD-G
Q66AD-DG
b15
CH4 CH3 CH2 CH1CH8 CH7 CH6 CH5
A00
00FA
H
0000000011111010
b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
F
b15
CH4 CH3 CH2 CH1CH6 CH5
500
0035
H
0000000000110101
b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
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