The InteliNeo 5500 is a microgrid controller that offers a cost-effective solution for combining traditional grid or gen-sets with renewable energy sources to create a reliable and efficient power generation system. The panel-mount design with a 5” colour TFT display is suitable for packagers and integrators who are looking to integrate clean and sustainable energy to existing power generation sites.

Its Modbus master ensures compatibility with a large number of preconfigured devices (including those of Fronius and many more).

• Single controller for renewables power sources and battery energy storage system
• Native microgrid applications for on & off-grid systems with renewable energy and storage
• 5" TFT Colour panel-mounted display with 480 x 800 pixels
• Microgrid screen templates for quick view
• Support of up to 8* genset/mains controllers on CAN2
• Modbus master TCP & RTU support of up to 9 devices

In support of our vision to continue making microgrids more accessible and increase the deployment of distributed energy resources, we are announcing a new feature to our microgrid controllers InteliNeo 6000 and 5500 – Universal Gen-set Support.

With this feature, customers can install renewable energy sources like PV and BESS, controlled by InteliNeo controls, and keep their existing gen-set control systems that can communicate and be supervised by InteliNeo seamlessly.

"With Universal Gen-set Support, customers can optimize the use of PV & BESS to reduce fuel consumption and peak demands without replacing the existing genset controllers. This provides customers with flexible and scalable options when designing their microgrid," says Wendy Truong, Product Manager for InteliNeo at ComAp.

As shown in the below picture, the CAN bus level typically ranges (Common-Mode-Voltage = 0V) between 1.5 (CAN_L during dominant bit) and 3.5 Volts (CAN_H during dominant bit). However, the actual signal status, recessive or dominant, is based on the differential voltage Vdiff between CAN_H and CAN_L.

SAE J1939 Quick Reference

• Higher-Layer Protocol using CAN as the physical layer
• Shielded twisted pair wire
• Max. network length of 40 meters (~120 ft.)
• Standard baud rate of 250 kBit/sec
• Max. 30 nodes (ECUs) in a network
• Max. 253 controller applications (CA) where one ECU can manage several CAs
• Peer-to-peer and broadcast communication
• Support for message length up to 1785 bytes
• Definition of Parameter Groups (Predefined vehicle parameters)
• Network Management[1] (includes address claiming procedure.

It must be emphasized that the maximum network length of 40 m (roughly 120 ft.), the baud rate of 250 kBit/sec and the maximum number of nodes (30) are self-inflicted restrictions by the SAE, most probably with the intention to keep everything on the extreme safe side and thus trying to prevent potential runtime problems.

In all consequence, the network length at 250 kBit/sec, according to ISO 11898, is 250 m (roughly 750 ft).