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MELSEC-Q
1 OVERVIEW
1
1 OVERVIEW
This manual explains the system configuration, performance specifications and
functions of the QD51 / QD51-R24 Intelligent Communications Module.
When applying the following program examples to the actual system, make sure to
examine the applicability and confirm that it will not cause system control problems.
The QD51 (-R24) has the following functions.
(1) BASIC Program-Based Functions
• Sub-CPU Function
Complex numerical calculations and functional calculations can be made with
a BASIC program.
• Monitor Display Function
It can display production conditions, the operating status, details of a
breakdown, etc.
• Key Input Function
The production schedule, production volume, operation, setting data, etc. can
be input.
• Printer Function
Production plans, performances, daily reports, breakdown details, planning
data, inspection results and test performance, etc. can be printed out.
• Data Input Function
Data can be input from a bar code reader or magnetic card reader, etc.
• External Device Connection Function
A computer, etc. can be connected to the RS-232, RS-422/485 interfaces and
data can be sent and received through a BASIC program.
• Clock Function
Clock data of the programmable controller CPU can be read and written.
(2) Offline Programming Function
BASIC programs can be created, corrected, stored to; user FD and printed out
independently by peripheral devices.
(3) Online Programming Function
BASIC programs can be created, run, and corrected from the console.
(4) Multitasking Debugging Function
BASIC programs can be debugged while they are being run.
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