Chapter 3 Parallel Link Function; Function Outline - Mitsubishi MELSEC iQ-F FX5 User Manual

3
PARALLEL LINK FUNCTION
This chapter explains parallel link.
3.1

Function Outline

The parallel link function is designed to connect two FX5 PLCs and mutually link the devices.
• The link mode can be selected from two modes, normal parallel link and high-speed parallel link modes, depending on the
number of devices to be linked and link time.
• Data link is automatically updated between two FX5 PLCs.
• The total extension distance is 1200 m maximum. (only when the FX5-485ADP is used in the configuration)
• The head device number can be set for each of the internal relay (M) and data register (D) for link.
FX5 PLC
Master station
Built-in
RS-485 port
Bit devices
(Device number: M800)
M800 to M899
M900 to M999
Word devices
(Device number: D490)
D490 to D499
D500 to D509
Word devices
(Device number: D490)
D490, D491
D500, D501
The device numbers for link are defaults.
3 PARALLEL LINK FUNCTION
50
3.1 Function Outline
1200 m (50 m when the built-in RS-485 port or FX5-485-BD is used)
Normal parallel link mode
Transfer direction
High-speed parallel link mode
Transfer direction
System
2 units
FX5 PLC
Slave station
Built-in
RS-485 port
Bit devices
(Device number: M800)
M800 to M899
M900 to M999
Word devices
(Device number: D490)
D490 to D499
D500 to D509
Word devices
(Device number: D490)
D490, D491
D500, D501