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3.4 Buffer Memory
3.4.4 A/D conversion completed flag (Un\G10)
3
SPECIFICATIONS
3.4.4 A/D conversion completed flag (Un\G10)
(1) When the A/D conversion-enabled channel has completed the initial A/D conversion,
A/D conversion completed flag is set to 1.
A/D conversion completed flag (XE) turns ON when all A/D conversion-enabled
channels have completed the initial A/D conversion.
[For the Q66AD-DG]
*1
• When the A/D conversion is enabled in the off condition of the external power
supply and the initial A/D conversion is completed, the channels for the analog
current input range without a 2-wire transmitter are set to 1. Also, the channels
for the 2-wire transmitter range remain 0. If the external power supply is turned
on and the initial A/D conversion is completed, the channels are set to 1.
• When the external power supply is turned off, the channels for the 2-wire trans-
mitter range only are set to 0. The channels for the analog current input range
without a 2-wire transmitter remain 1.
*1 The specifications are for product number 15032 or later of the Q66AD-DG.
For the specifications for product number 15031 or earlier, refer to Appendix 2.
(2) When operating condition setting request (Y9) is set to ON, A/D conversion
completed flag on all channels returns to the default setting of 0.
If operating condition setting request (Y9) is set to OFF and the initial A/D conversion
is completed, the flag is set to 1.
[Setting example of Q68AD-G]
When all A/D conversions of conversion-enabled channels 1 and 2 are completed,
0003
H is stored into the buffer memory address 10 (Un\G10).
[Setting example of Q66AD-DG]
When all A/D conversions of conversion-enabled channels 3 and 4 are completed,
000C
H is stored into the buffer memory address 10 (Un\G10).
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
CH4 CH3 CH2 CH1
CH8 CH7 CH6 CH5
0Un\G10 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.
1 : A/D conversion completed
0 : A/D conversion in
progress or not used
b15
CH4 CH3 CH2 CH1CH8 CH7 CH6 CH5
300
0003
H
0000000000000011
b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
0
b15
CH4 CH3 CH2 CH1CH6 CH5
C
00
000C
H
0000000000001100
b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
0
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