Specifications; Wiring; Wiring Procedure; Cable - Mitsubishi MELSEC iQ-F FX5 User Manual

6.4

Specifications

This section describes the communication specifications and performance of non-protocol communication.
Items
Transmission standard
Maximum overall distance
Number of Transfer Data
Protocol type
Control procedure
Communication method
Baud rate
Character format Start bit
Data length
Parity bit
Stop bit
Header
Terminator
Control line
Sum check
6.5

Wiring

This section explains about the wiring.

Wiring procedure

1.
Preparing for wiring
Prepare cables and termination resistors required for wiring. (Page 154 Cable)
2.
Turn OFF the PLC power
Before wiring, make sure that the PLC power is OFF.
3.
Wire the communication equipment
Connect the RS-485, RS-232C communication equipment. (Page 157 Connection diagram)

Cable

Select cables using the procedure described below.
Twisted pair cable
Use shielded twisted pair cables for connecting RS-485 communication equipment.
The specifications of the cables used in wiring are shown.
■RS-485 cable specifications
Items
Cable type
Number of pairs
Conductor resistance (20)
Insulation resistance
Voltage resistance
Electrostatic capacitance (1 kHz)
Characteristic impedance (100 kHz)
6 NON-PROTOCOL COMMUNICATION
154
6.4 Specifications
Specifications
RS-485 and RS-422 standard
When FX5-485ADP is used: 1200 m or less
When using built-in RS-485 port or FX5-485-BD: 50 m
or less
0 to 4096

Non-protocol communication
Half-duplex, bi-directional communication/full-duplex, bi-directional communication
300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps

7 bits/8 bits
None, odd or even
1 bit/2 bits
Provided or not provided
Provided or not provided

Provided or not provided
RS-232C standard
15 m or less
Provided or not provided
Description
Shielded cable
2p, 3p
88.0 Ω/km or less
10000 MΩ-km or more
500 V DC, 1minute
60 nF/km or less as an average
110±10 Ω