Mitsubishi FX3U-232-BD User Manual

G-14
FX Series PLC User's Manual - Data Communication Edition
Non-Protocol Communication (FX2N-232IF)
5 Creating Programs
5.1 Outline of Communication between FX PLC and 232IF
5. Creating Programs
This chapter explains how to create programs for non-protocol communication type using the 232IF.
5.1 Outline of Communication between FX PLC and 232IF
An FX PLC and 232IF transfer data between each other through the buffer memory (BFM).
5.1.1 For FROM and TO instructions
5.1.2 For direct specification of buffer memory (U\G)
FX3U and FX3UC PLCs allow not only FROM and TO instructions but also direct specification of the buffer
memory (U
\G) using the MOV instruction, etc.
Receiving completed
status
Device memory
Data register
D****
Internal relay
M****
FX
2N /FX 3U /FX 2NC /FX 3UC PLC
FX 2N - 232IF
Communication equipment
Buffer memory
Communication
format
Sending command
Error reset
Send data
Receive data
TO instruction
TO instruction
FROM instruction
FROM instruction
Printer
Bar code reader
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FX 3U /FX 3UC PLC
Device
Direct specification
of buffer memory
FX 2N - 232IF Communication equipment
Buffer memory
Arbitrary applied
instruction
Printer
Bar code reader
U \G
Arbitrary applied
instruction
Arbitrary applied
instruction
Arbitrary applied
instruction
Receiving completed
status
Communication
format
Sending command
Error reset
Send data
Receive data
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Mitsubishi FX3U-232-BD Specifications

General

Brand	Mitsubishi
Model	FX3U-232-BD
Category	Controller
Language	English