QJ71LP21S-25 MELSECNET/H network module Optical loop type

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Ngày: 27/06/2019

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QJ71LP21S-25

MELSECNET/H network module Optical loop type

Cost-effective distributed control network compatible with A and AnS Series

●MELSECNET/H network module Optical loop typeQJ71LP21-25QJ71LP21S-25QJ71LP21G

QJ72LP25-25QJ72LP25G  (Remote I/O station)

●MELSECNET/H network module Coaxial bus typeQJ71BR11

QJ72BR15  (Remote I/O station)

●MELSECNET/H network module Twisted bus typeQJ71NT11B

  • MELSECNET/H network systems support controller-to-controller, controller-to-personal computer, and controller-to-remote I/O station communications. Multiple wiring types are available and many functions designed to increase reliability are included, such as support for redundant systems.
  • Optical loop type: Communication speeds up to 25 Mbps. Fiber optic cable is immune to EMI/RFI noise. Up to 2 km between stations using GI type cable.
  • Coaxial bus type: Using low cost coaxial cable allows networks to be constructed at less cost than optical loop networks.
  • Twisted bus type: The combination of an affordable network module and twisted-pair cables allows a network system to be built at very low cost.

MELSECNET/H network module

■ Performance Specifications

ItemSpecification
Network configurationsOptical loop systemCoaxial bus system
ModelQJ71LP21(S)-25
QJ72LP25-25
QJ71LP21G
QJ72LP25G
QJ71BR11
QJ72BR15
CableFiber optic (SI)Fiber optic (GI)Coaxial (3C-2V)Coaxial (5C-2V)
PLC to PLC networkMaximum number of link points per stationLB16384 points (8192 points in the MELSECNET/10 mode)
LW16384 points (8192 points in the MELSECNET/10 mode)
LX/LY8192 points
Maximum number of link points per station・MELSECNET/H mode {(LY + LB) /8 + (2 x LW)} ≤ 2000 bytes
・MELSECNET/H extended mode {(LY + LB) /8 + (2 x LW)} ≤ 35840 bytes
Number of stations per networkUp to 64 stations (1 control station, 63 normal stations)Up to 32 stations (1 control station, 31 normal stations)
Remote I/O networkMaximum number of link points per networkLB16384 points
(Remote Master to Remote Sub-master or Remote I/O: 8192 points,
Remote Sub-master or Remote I/O to Remote Master: 8192 points)
LW16384 points
(Remote Master to Remote Sub-master or Remote I/O: 8192 points,
Remote Sub-master or Remote I/O to Remote Master: 8192 points)
LX/LY8192 points
Maximum number of link points per station・Remote Master to Remote I/O ((LY + LB) /8 + (2 x LW)) ≤ 1600 bytes
・Remote I/O to Remote Master ((LX + LB) /8 + (2 x LW)) ≤ 1600 bytes
・Multiplexed Remote Master from/to Multiplexed Remote Sub-master ((LY + LB) /8 + (2 x LW)) ≤ 2000 bytes
Maximum I/O points per remote I/O stationX + Y ≤ 4096 points
If X/Y numbers are duplicated, only one side is taken into consideration.
Device points per remote I/O stationM8192 points
SM2048 points
D12288 points
SD2048 points
Number of stations per networkUp to 65 stations (1 remote master station, 64 remote I/O stations)Up to 33 stations (1 remote master station, 32 remote I/O stations)
Communication speed25 Mbps/10 Mbps10 Mbps
Overall distance30 km300 m500 m
Distance between stationsUp to 1 km2 km
ItemSpecification
Network configurationsTwisted bus system
ModelQJ71NT11B
CableTwisted pairCC-Link Ver. 1.10-compatible cable
PLC to PLC networkMaximum number of link points per stationLB16384 points
LW16384 points
LX/LY8192 points
Maximum number of link points per station・MELSECNET/H mode {(LY + LB) /8 + (2 x LW)} ≤ 2000 bytes
・MELSECNET/H extended mode {(LY + LB) /8 + (2 x LW)} ≤ 35840 bytes
Number of stations per networkUp to 32 stations (1 control station, 31 normal stations)
Remote I/O network
Communication speed156 kbps/312 kbps/625 kbps/1.25 Mbps/2.5 Mbps/5 Mbps/10 Mbps
Overall distance1200 m/156 kbps,
600 m/312 kbps,
400 m/625 kbps,
200 m/1.25 Mbps
1200 m/156 kbps,
900 m/312 kbps,
600 m/625 kbps,
400 m/1.25 Mbps,
200 m/2.5 Mbps,
150 m/5 Mbps,
100 m/10 Mbps
Distance between stations

 

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