App. - 40 App. - 40
MELSEC-Q
APPENDIXES
Appendix 9.3 When sending on-demand data
The following program example sends on-demand data using the REMFR/REMTO
instruction and I/O signals.
For the on-demand function, refer to the Reference Manual and the User's Manual
(Application).
(1) Program conditions
The following program sends on-demand data from the CH1 side when the
transmission command (X1022) turns ON.
(a) Devices used
:
• Transmission command ............................................................ X1022
• Transmission command pulse signal ........................................ M10
• On-demand function designation command ............................. M11
• On-demand data transmission flag............................................ M12
• On-demand execution result acquisition command.................. M13
• LED ON status acquisition command........................................ M14
• Completion device for REMFR/REMTO instruction .................. M100 to 107
• Normal/abnormal completion flag for REMFR/REMTO
instruction................................................................................... M200 to 204
• Normal/abnormal completion of on-demand data
transmission............................................................................... M300, M301
• Transmission data...................................................................... D0, D1
• Buffer memory head address designation for on-demand
function....................................................................................... D2
• Data length designation for on-demand function....................... D3
• On-demand execution result...................................................... D8
• LED ON status and communication error status on CH1 side
................................................................................................... D9
(b) Intelligent function module switch settings (Refer to Section 4.5.2)
Bit
Switch No.
Position Designated
value
Description
Setting
value
b0 OFF
Operation
setting
Independent
b1
ON
Data bit
8 bits
b2 OFF
Parity
bit
No
b3 OFF
Even/odd
parity
Odd
b4
OFF
Stop bit
1 bit
b5
ON
Sum check code
Yes
b6
ON
Write during RUN
Enabled
b7 ON
Transmission
setting
Setting modifications
Enabled
Switch 1
b8 to b15
—
Communication rate setting
19200bps
07E2
H
Switch 2
—
Communication protocol setting
MC protocol format 1
0001
H
Switch 5
—
Station number setting
Station 0
0000
H
(c) Buffer memory settings used in this example
Address Decimal (Hexadecimal)
CH1
Name
Setting
value
150 (96
H
)
Word/byte units designation
Word units
160 (A0
H
)
Buffer memory head address designation for on-demand function designation
0C00
H
161 (A1
H
)
Data length designation for on-demand function designation
2
513 (201
H
)
LED ON status and communication error status on CH1 side
—
598 (256
H
)
On-demand execution result
—
Summary of Contents for MELSEC QJ71C24
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Page 103: ...3 42 3 42 MELSEC Q 3 SPECIFICATIONS MEMO ...
Page 177: ...6 33 6 33 MELSEC Q 6 DATA COMMUNICATION USING THE NON PROCEDURE PROTOCOL MEMO ...
Page 397: ...App 24 App 24 MELSEC Q APPENDIXES Connection example 3 Connection example 4 ...
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