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| Item | Mitsubishi MELSECNET/H network module Specification | |||||
| Network configurations | Optical loop system | Coaxial bus system | Twisted bus system | |||
| Model | QJ71LP21(S)-25 QJ72LP25-25 | QJ71LP21G QJ72LP25G | QJ71BR11 QJ72BR15 | QJ71NT11B | ||
| Cable | Fiber optic (SI) | Fiber optic (GI) | Coaxial (3C-2V) | Coaxial (5C-2V) | Twisted pair | CC-Link Ver. 1.10- compatible cable |
| PLC to PLC network Maximum number of link points per network | 16384 points (8192 points in the MELSECNET/10 mode) | 16384 points | ||||
| LW | 16384 points (8192 points in the MELSECNET/10 mode) | 16384 points | ||||
| LX/LY | 8192 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 network |
Up to 64 stations
(1 control station, 63 normal stations) |
Up to 32 stations (1 control station, 31 normal stations) | ||||
| Communication speed | 25 Mbps/10 Mbps | 10 Mbps | 156 kbps/312 kbps/625 kbps/1.25 Mbps/2.5 Mbps/5 Mbps/10 Mbps | |||
|
Overall distance |
30 km |
300 m |
500 m |
1200 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 | Up to 1 km | 2 km | — | — | ||
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