Mitsubishi QJ71C24N User Manual

App. - 40 App. - 40
MELSEC-Q
A
PPENDIXES
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
07E2H
Switch 2 — Communication protocol setting MC protocol format 1 0001H
Switch 5 — Station number setting Station 0 0000H
(c) Buffer memory settings used in this example
Address Decimal (Hexadecimal)
CH1
Name
Setting
value
150 (96H) Word/byte units designation Word units
160 (A0H) Buffer memory head address designation for on-demand function designation 0C00H
161 (A1H) Data length designation for on-demand function designation 2
513 (201H) LED ON status and communication error status on CH1 side —
598 (256H) On-demand execution result —

Mitsubishi QJ71C24N Specifications

General

Brand	Mitsubishi
Model	QJ71C24N
Category	Controller
Language	English