Mitsubishi Electric MELSEC IQ-R series Reference Manual page 89

Mask value, monitor conditions when word device value is specified
Specify the value of word device to be set as a monitor condition.
Arbitrary bit range of word devices can only be specified by specifying mask value.
(Logical AND by each bit of the specified word device data and the designated mask value is compared with the monitor
condition value.)
■Data communication in ASCII code
Convert the numerical value to 4-digit ASCII code (hexadecimal), and send it from the upper digits.
■Data communication in binary code
Send the 2-byte numerical value
*1 For C24, the additional code may be added. (Page 35 Additional code (10H))
Ex.
Specifying when bit 0 to 14 of D0 reaches 1000 (3E8H) as a condition
• Mask value: 7FFFH
ASCII code
7 F F F
37 46 46 46
H H H H
• Monitor condition value: 03E8H
ASCII code
0 3 E 8
30 33 45 38
H H H H
Monitor conditions when bit device value is specified
Specify a bit device status change as the monitor condition from either rising (OFF  ON) or falling (ON  OFF).
Condition
Rising (OFFON)
Falling (ONOFF)
*1
in order from the lower byte (L: bit 0 to 7).
Binary code
FF 7F
H H
Binary code
E8 03
H H
ASCII code
0 2
30 32
H H
0 4
30 34
H H
Binary code
02
H
04
H
8 DEVICE ACCESS
8.1 Data to be Specified in Commands
8
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