Technical Overview
The NJ-JM programmable logic controller from Fuji Electric delivers high-performance control for complex automation applications. This modular controller features a program capacity of up to 256K steps and supports up to 65,536 I/O points for large-scale system configurations . The controller achieves an exceptionally fast execution speed of 0.48μs per step for sequence instructions . Furthermore, it supports multi-CPU configurations with up to 8 processors for distributed function and performance .
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Fuji Electric |
| Model Number | NJ-JM |
| Product Type | Programmable Logic Controller |
| Program Capacity | Up to 256K steps |
| Max I/O Points | 65,536 points |
| Execution Speed | 0.48μs/step (sequence), 1.62μs/step (transfer) |
| Internal Relays | 8,192 auxiliary, 4,096 latching |
| Communication Support | Ethernet, LonWorks, DeviceNet, PROFIBUS-DP, AS-i |
| Communication Modules | Up to 8 expansion modules |
| CPU Configuration | Up to 8 CPUs (multi-CPU system) |
| Bus System | E-SX bus (100 Mbps/100 m station-to-station) |
| Approx. Weight | 0.5 kg |
| Approx. Dimensions | 150mm x 100mm x 60mm |
| Power Supply | 24V DC ±10% |
| Current Consumption | 150 mA max |
| Operating Temperature | -10°C to 55°C |
| Protection Rating | IP20 |
High-Speed Processing and Large Memory Capacity
The NJ-JM controller delivers outstanding processing speed for demanding control tasks. The 0.48μs execution time per step enables rapid response to process changes. The 256K-step program capacity accommodates complex logic sequences . Additionally, the extensive internal relays and lock relays provide ample data storage for system states .
Flexible I/O and System Expansion
This controller supports a wide range of I/O modules, including high-resolution (12-bit) analog I/O, high-speed counting up to 50kHz, and positioning modules . Users can expand the system up to 1,024 I/O points using 8, 16, or 32-point modules . Consequently, the NJ-JM suits applications ranging from small to large-scale control.
Advanced Communication and Networking
The controller supports diverse open networks, including Ethernet, LonWorks, DeviceNet, PROFIBUS-DP, and AS-i . Each basic unit can connect up to 8 communication modules for extensive networking capabilities . The built-in Ethernet function allows remote monitoring, operation history recording, and preventive maintenance . Moreover, the E-SX bus delivers 100 Mbps transmission speed over 100-meter station-to-station distances .
Multi-CPU Configuration and Redundancy
The NJ-JM supports multi-CPU configurations with up to 8 processors for distributed processing. This architecture enables function and performance distribution across multiple CPUs . Furthermore, users can implement CPU and power supply redundancy for critical applications requiring high reliability .
Application Suitability
This controller finds extensive use in packaging machines, special-purpose machine tools, building automation, and infrastructure equipment. Its versatility suits both standard manufacturing and high-reliability applications . The wide operating temperature range and IP20 protection ensure reliable operation in industrial environments.
Details
| Weight | 0.7 kg |
|---|---|
| Dimensions | 2.5 × 20.3 × 15.2 mm |
Reviews
There are no reviews yet.