MELSEC iQ-R Series
MELSECNET/H Network Module
The MELSECNET/H Network module features improved usability while maintaining compatibility with the MELSEC-Q Series equivalent module (QJ71LP21-25). Existing MELSEC-Q Series assets such as programs, network parameters, and cables can be utilized, making replacement with the MELSEC iQ-R Series easier.
Easily connect to MELSECNET/H Network system
MELSEC iQ-R Series modules can be added to the existing MELSECNET/H Network consisting with MELSEC-Q Series modules. A redundant system is supported, allowing replacement of the existing MELSEC-Q Series redundant CPUs.
MELSECNET/H network module specifications
| Item | RJ71LP21-25 | |
|---|---|---|
| Communication speed (bps) | 25 M/10 M (MELSECNET/10 mode 10 M) | |
| Network topology | Duplex loop | |
| Communication cable | Optical fiber cable | |
| Max. station-to-station distance | 25 Mbps | 200 m (SI optical fiber cable), 400 m (H-PCF optical fiber cable), 1 km (broadband H-PCF optical fiber cable), 1 km (QSI optical fiber cable/broadband silica glass optical fiber cable) |
| 10 Mbps | 500 m (SI optical fiber cable, 1 km (H-PCF optical fiber cable), 1 km (broadband H-PCF optical fiber cable) 1 km (QSI optical fiber cable/broadband silica glass optical fiber cable) |
|
| Overall cable distance (km) | 30 | |
| Max. number of connectable stations | 64 (control station: 1, normal station: 63) | |
| Maximum link points per network | ||
| Link relay (LB) | 16384 points (MELSECNET/10 mode: 8192 points) | |
| Link register (LW) | 16384 points (MELSECNET/10 mode: 8192 points) | |
| Link input (LX), link output (LY) | 8192 points | |
| Network mode | PLC to PLC network | |
| Function | ||
| Firmware update*1 | ●*1 | |
*1: For more information, please refer to the relevant product manual
* Some functions of the MELSEC-Q Series equivalent module (QJ71LP21-25) are not supported. For more information, please refer to the relevant product manual.
* Some functions of the MELSEC-Q Series equivalent module (QJ71LP21-25) are not supported. For more information, please refer to the relevant product manual.