Mitsubishi FX3U-232-BD User Manual page 441

FX Series PLC User's Manual - Data Communication Edition
Non-Protocol Communication (RS/RS2 Instruction)
1. Outline
This chapter explains Non-protocol communication.
1.1 Outline of System
Non-protocol communication exchanges non-protocol data using a printer, bar code reader, etc.
In FX Series PLCs, non-protocol communication is available using the RS and RS2 instructions.
The RS2 instruction is dedicated to the FX
channels at the same time when the channels are specified.
1) Up to 4096 points of data can be sent, and up to 4096 points of data can be received. However, make
sure that the total number of sent and received data is 8000 points or less.
2) Data transfer is enabled when the connected equipment supports non-protocol serial communication.
3) The applicable total extension distance is 15m (49' 2") maximum in accordance with RS-232C
communication, and 500m (1640' 5") maximum in accordance with RS-485 comminication [50m (164' 0")
when 485BD connection is used].
• RS instruction (FX
RS-232C: 15 m (49' 2"), RS-485: 500 m (1640' 5")
Printer or bar code reader
Bar code reader
or printer
In PLCs except for the FX
maximum.
3U
(FX), FX , FX , FX , FX
2 2C 0N 1S
System
[50 m (164' 0") when 485BD is used]
Transfer direction
, FX , FX and FX
2N 3U 2NC 3UC
and FX PLCs, and allows communication using two
3UC
, FX , FX , FX , FX
1N 2N 3U 1NC
FX PLC
+
Communication
equipment operating
in accordance with
RS-232C or
RS-485
Word devices
4096 points data
PLCs, the amount of send data or receive data can be 256 points
1 Outline
1.1 Outline of System
, FX )
2NC 3UC
Important points and reference
chapter/section
.......
Total extension distance
For specifications,
refer to Chapter 2.
....... To check applicable PLC
models, refer to Section 1.3.
....... For selection, refer to
Chapter 3.
....... For wiring, refer to
Chapter 4.
....... The amount of send data or
receive data can be 4096
points maximum.
For details, refer to Chapter 2.
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