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2 SPECIFICATIONS
2.8 Communication Specifications
2.8 Communication Specifications
The built-in Ethernet and built-in RS-485 communication specifications are as explained below.
Built-in Ethernet communication
For details of built-in Ethernet communication, refer to the following.
MELSEC iQ-F FX5 User's Manual (Ethernet Communication)
MELSEC iQ-F FX5 User's Manual (SLMP)
*1 Number of stages that can be connected when a repeater hub is used. When a switching hub is used, check the specifications of the
switching hub used.
*2 A straight cable can be used. If a personal computer or GOT and CPU module are directly connected a cross cable can be used.
Built-in RS-485 communication
For details of built-in RS-485 communication, refer to the following.
MELSEC iQ-F FX5 User's Manual (Serial Communication)
MELSEC iQ-F FX5 User's Manual (MODBUS Communication)
Item Specifications
Data transmission speed 100/10 Mbps
Communication mode Full-duplex (FDX) / Half-duplex (HDX)
Interface RJ45 connector
Transmission method Base band
Maximum segment length (The distance between hub and node) 100 m (328'1")
Cascade connection 100BASE-TX Cascade connection max. 2 stages
*1
10BASE-T Cascade connection max. 4 stages
*1
Protocol type MELSOFT connection
SLMP (3E frame)
Socket communication
Predefined protocol support
Number of simultaneously open connections allowed Total of 8 for socket communication, MELSOFT connection, SLMP, and Predefined
protocol support
(Up to 8 external devices can access one CPU module at the same time.)
Insulation method Pulse transformer insulation
Cable used
*2
For 100BASE-TX connection Ethernet standard-compatible cable, category 5 or higher (STP cable)
For 10BASE-T connection Ethernet standard-compatible cable, category 3 or higher (STP cable)
Item Specifications
Transmission standards Conforms to RS-485/RS-422 specifications
Data transmission speed Max. 115.2 kbps
Communication method Full-duplex (FDX) / Half-duplex (HDX)
Maximum total extension distance 50 m (164'0")
Protocol type MELSOFT connection
Non-protocol communication
MELSEC Communication protocol (3C/4C frames)
MODBUS RTU
Predefined protocol support
Inverter communication
N:N network
Insulation method Not insulated
Terminal resistors Built-in (OPEN/110 /330 )
Terminal block used European-type terminal block