Mitsubishi Electric MELSEC iQ-RD77MS2 User Manual page 27

The performance specifications of CC-Link IE Field Network is shown below.
Item
Maximum number of link points per
network
Maximum Master station
number of link
points per
station
*1
Local station
Safety Maximum number of safety
communications connectable stations per network
Maximum number of safety
connections per network
Maximum number of safety
connections per station
Maximum number of link points per
safety connection
*2
Inter-module synchronization cycle
synchronization communication)
Transient transmission
Transient transmission capacity
Maximum number of transient transmissions per link
scan
Communication speed
Network topology
Communication cable
Maximum station-to-station distance
Overall cable distance Single master
configuration
Number of cascade connections
Maximum number of Single master
connectable stations configuration
Maximum number of networks
Communication method
*1 The maximum number of points that a master station can assign to one station. A local station can receive the range assigned to other
stations using the cyclic transmission function.
*2 The cycle that each module performs the synchronous control via a network using the synchronous communication function.
*3 A switching hub supporting synchronous communication is required for the star topology.
RD77GF4
RX 16K points (16384 points, 2K bytes)
RY 16K points (16384 points, 2K bytes)
RWr 8K points (8192 points, 16K bytes)
RWw 8K points (8192 points, 16K bytes)
RX 16K points (16384 points, 2K bytes)
RY 16K points (16384 points, 2K bytes)
RWr 8K points (8192 points, 16K bytes)
RWw 8K points (8192 points, 16K bytes)
RX 2K points (2048 points, 256 bytes)
RY 2K points (2048 points, 256 bytes)
RWr 1K points (1024 points, 2K bytes)
256 points when communication mode is "High-Speed"
RWw 1K points (1024 points, 2K bytes)
256 points when communication mode is "High-Speed"
121 stations
1814 connections
120 connections
8 words (input: 8 words, output: 8 words)
(with 0.50 ms/1.00 ms/2.00 ms/4.00 ms
1: N communication (such as monitor, program upload/download)
Dedicated instructions from sequence programs
1920 bytes maximum
4
1 Gbps
Line topology, star topology
• Ethernet cable which satisfies 1000BASE-T standard:
Category 5e or higher, straight cable (double shielded, STP)
• RJ45 connector
100 m (conforms to ANSI/TIA/EIA-568-B (Category 5e))
Line topology: 12000 m (when 121 stations are connected)
Star topology: Depends on the system configuration.
4 levels maximum
121 stations (master station: 1, slave station: 120)
239
Token passing
RD77GF8 RD77GF16
*3
2.2 Performance Specifications of the RD77GF
RD77GF32
2 SPECIFICATIONS
25
2