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MELSEC-Q
3 SPECIFICATIONS
3.4.6 Conversion completion flag (Un\G10)
(1) You can check whether the channels specified for conversion enable succeeded
in normal temperature conversion.
(2) You can make check on each channel using the conversion completion flag.
(3) The conversion completion flag is cleared when the Operating Condition Setting
Request (Y9) is turned from ON to OFF.
(4) The Conversion Completion Flag (XE) turns on when conversions of all channels
set for conversion enable are completed.
• When Conversion enable/disable setting is turned from 1 (disable) to 0 (enable)
After the temperature conversion value is stored into buffer memory, the conversion
completion flag of the corresponding channel is turned to 1.
• When Conversion enable/disable setting is turned from 0 (enable) to 1 (disable)
The conversion completion flag of the corresponding channel is turned to 0.
b15 b14 b13 b12 b11 b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
0
0
0
0
CH.4 CH.3 CH.2 CH.1
1: Conversion completed
0: Under conversion or unused
0
0
0
0
0
0
0
0
REMARK
Between the Q64RD/Q64RD-G whose first 5 digits of product information are 07071
or earlier and those of 07072 or later, the Conversion Completion Flag (Un\G10)
operation is different.
For details, refer to Appendix 2.2 and 2.3.
3.4.7 CH measured temperature value (16bit) (Un\G11 to 14)
(1) The "RTD value" input from the platinum temperature-measuring resistor is
converted into a "temperature value" to detect a temperature.
(2) The value of the measured temperature to the first decimal place is multiplied by
10 and the result is stored into buffer memory in 16-bit signed binary. (All digits to
the right of the second decimal place is rounded down.)
(3) A negative measured temperature value is displayed as two's complement.
(4) At power-on or reset, all channels are set to 0.
[Example 1] At the measured temperature value of 123.025 ..... 1230 is stored.
b15 b14 b13 b12 b11 b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
1
1
0
0
1
1
1
0
0
0
0
0
0
1
0
0
[Example 2] At the measured temperature value of -123.025 ..... -1230 is stored.
b15 b14 b13 b12 b11 b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
0
0
1
1
0
0
1
0
1
1
1
1
1
0
1
1
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