To truly verify your MCP2551 setup, don't just look at the pins. Go to the (the icon that looks like a voltmeter) and select the CAN Analyzer . Connect the Analyzer to the CANH and CANL lines.

Connect to the Cantx pin of your microcontroller (e.g., PIC18F458 or Arduino with MCP2515).

A full MCP2551 library for Proteus typically includes:

Proteus stores libraries in specific directories depending on your version and operating system.

. Furthermore, Proteus (specifically the ISIS simulation environment) does not natively support the simulation of ECAN or CAN protocols for many microcontrollers, making a functional simulation of the transceiver difficult even if a model is added. If you need the MCP2551 for PCB layout

Browse for your downloaded file and follow the prompts to complete the import. Physical Hardware Options

for simulation often requires adding custom library files, as it is not always included in the default installation. Key Components for Simulation MCP2515 (Controller):