Mitsubishi MELSEC Q Series Reference Manual page 168

b7
0
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3 WHEN COMMUNICATING USING THE QnA COMPATIBLE 3E/3C/4C FRAMES OR 4E FRAME
3) Monitor condition
This value designates the condition under which data is read.
The table below summarizes the combinations of monitor conditions
that can be designated.
(Three conditions cannot be designated at the same time.)
Monitor condition
Combination
Single designation
Combined designation
a) Data communication in ASCII code
The value shown below is converted to a 2-digit (hexadecimal)
ASCII code and transmitted beginning from the most significant
digit.
b) Data communication in binary code
The 1-byte value shown below is transmitted.
c) The following data is designated as monitor conditions.
b2 b1 b0
1/0 1/0 1/0
File and step number yes/no designation
0: File and step numbers are not designated
1: File and step numbers are designated
Word device value yes/no designation
0: Word device value is not designated
1: Word device value is designated
(Can be selected when bit device is not designated.)
Bit device yes/no designation
0: Bit device is not designated
1: Bit device is designated
(Can be selected when word device value is not designated.)
d) When the designated monitor condition was selected by a
subcommand, the permitted monitor conditions are "01
"00
e) When a monitor condition was selected not to be designated by a
subcommand, it is not required to specify the monitor conditions.
4) Fixed value
a) Data communication in ASCII code
The value "0F" is transmitted beginning from the most significant
digit ("0").
b) Data communication in binary code
The 1-byte value "0F
c) When a monitor condition was selected not to be designated by a
subcommand, it is not required to specify the fixed values.
5) File number
This value designates the registration number when a file designated
by the subsequent filename and extension is registered (written) to the
programmable controller CPU. One of the following can be designated.
File and step number
designation
" cannot be used.
H
" is used for transmission.
H
Word device value
Bit device designation
designation
: Can be designated
" to "05 "
H H
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