QJ71GP21-SX CC-Link IE Control Network module

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Ngày: 27/06/2019

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CC-Link IE Control Network module

Highly reliable distributed control network designed for large bandwidth and high-speed

●CC-Link IE Control Network module Standard modelQJ71GP21-SX

●CC-Link IE Control Network module With external power supply functionQJ71GP21S-SX

  • Commercially available Ethernet components can be used for significant cost savings over alternative networks.
  • Deterministic, reliable performance helps to reduce operation cycle time. This cyclic data exchange is fixed and will not suffer from degraded performance even when large volumes of data are transferred.
  • Share massive amounts of data between controllers. (Up to 256K bytes of network shared memory per station)
  • The CC-Link IE Control Network modules, QJ71GP21-SX and QJ71GP21S-SX, may be configured as normal stations, or the control station.

CC-Link IE

CC-Link IE Control

■ Performance Specifications*1

Max. link points per networkLB32K points (32768 points, 4 KB)
(Safety CPU: 16K points (16384 points, 2 KB))
LW128K points (131072 points, 256 KB)
(Safety CPU: 16K points (16384 points, 32 KB))
LX8K points (8192 points, 1 KB)
LY8K points (8192 points, 1 KB)
Max. link points per stationRegular modeExtended mode*2
LB16K points (16384 points, 2 KB)32K points (32768 points, 4 KB)
LW16K points (16384 points, 32 KB)128K points (131072 points, 256 KB)
LX8K points (8192 points, 1 KB)8K points (8192 points, 1 KB)
LY8K points (8192 points, 1 KB)8K points (8192 points, 1 KB)
Communication speed1 Gbps
Number of stations per network120 (1 control station plus 119 normal stations)
Connection cableOptical fiber cable (Multi-mode fiber)
Overall cable distance66000 m (When 120 stations are connected)
Station-to-station distance (Max.)550 m (Core/Clad = 50/125 (m))
Max. number of networks239
Max. number of groups32
Network topologyRing

*1: When the control station is a Universal model QCPU.

*2: To use extended mode, (QJ71GP21(S)-SX) network modules and Universal model CPUs whose first five serial number digits are 12052 or later are required. All stations in the network must support the extended mode. Also, GX Works2 version 1.34 L or later is required.

Designed to continue functioning even in the worst possible scenarios

  • The use of fiber optic cables which are completely immune to EMI and RFI noise allows the network to function in environments where other networks cannot. The dual loop design allows the network to continue functioning even if cables become damaged or the power is lost to a station.
  • Additionally, CC-Link IE stations can be powered using an external supply. That allows communication to continue normally in the event of a loss of the primary power supply, without relying on the loop-back function.

Loopback function

External power supply function

View the network connection status of entire system to identify problems at a glance. The cause of problems can be quickly identified and suggested remedies implemented to minimize down time.