Mitsubishi QD51-R24 User Manual

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MELSEC-Q
1 OVERVIEW
1
1.1 Operation Overview for QD51 (-R24)
The QD51 (-R24) operates by BASIC programs created by the user.
The BASIC version that can be used by the QD51 (-R24) is AD51H-BASIC, which is
capable of multitasking processing of up to 2 tasks.
Besides the various calculations that can be carried out by a BASIC program created
by the user,
• Data can be sent to and received from an external device.
• Data can be sent to and received from the programmable controller CPU.
The operation in the QD51 (-R24) when data are sent to or received from an external
device or the programmable controller CPU is as shown below.
Sending
Expansion Relay
Expansion Register
Common Memory
Buffer Memory
Data
reading
Data writing
Internal Memory BASIC Program
Task No. 1 Area
Task No. 2 Area
Data
Writing
Data
reading
Interface 1
RS-232
External
Device
• Interrupt request
• Data writing
• Data reading
• Task start request
1 In the case of the QD51
RS-232 2 Channels
In the case of the QD51-R24
RS-232 1 Channel
RS-422/485 1 Channel
Reception
Data Sending
/Reception
RS-232
RS-422
RS-485
Programmable
controller

Mitsubishi QD51-R24 Specifications

General

Brand	Mitsubishi
Model	QD51-R24
Category	Controller
Language	English