Our online CAN ID to J1939 PGN converter lets you easily paste a list of CAN bus identifiers (29-bit) in the textbox - and see the corresponding SAE J1939 PGNs (Parameter Group Numbers), incl. calculations of key fields (Priority, Reserved, …

j1939协议的核心特点是使用29位can标识符（can id），这远比标准can的11位标识符提供更大的地址空间，能够支持多达...

Detailed breakdown of the J1939 PGN. Let's look at the CAN ID to PGN transition in detail. Specifically, the 29 bit CAN ID comprises the Priority (3 bits), the J1939 PGN (18 bits) and the Source Address (8 bits). In turn, the PGN can be split into the Reserved Bit (1 bit), Data Page (1 bit), PDU format (8 bit) and PDU Specific (8 bit).

2025年1月8日 · sae j1939协议是由美国汽车工程师协会（sae）制定的主要针对商用车的can总线通讯协议，其基础是can2.0b协议，面向对象为客车和载重货车；船舶、农业机械等非路面设备。

The 29-bit CAN ID is a unique identifier assigned to each J1939 message. It provides information about the source and destination of the message, the priority and whether it's a broadcast message or not.

2023年11月17日 · sae j1939协议是由美国汽车工程师协会（sae）制定的主要针对商用车的can总线通讯协议，其基础是can2.0b协议，面向对象为客车和载重货车；船舶、农业机械等非路面设备。1.

2025年2月15日 · CAN messages are identified by a unique 11-bit or 29-bit message ID, which also determines message priority. A lower message ID value corresponds to a higher priority. A single CAN node can send or receive multiple messages, allowing for maximum network flexibility. Efficient Bus Access and Event-Driven Communication

J1939 uses the 29-bit identifier defined within the CAN 2.0B protocol shown in Figure 1. The identifier is used slightly different in a message with a destination address (”PDU 1”) compared to a message intended for broadcast (”PDU 2”). PDU stands for …

A free-of-charge tool for bi-directional conversion of SAE J1939 PGN – CAN Id can be downloaded for free. The decoder application enables the user to enter J1939 PDU fields (Priority, DP, PGN, Source Address – according to J1939/21 – Data Link Layer) and convert it into a 29-bit CAN Identifier and vice-versa.

The SAE J1939 protocol requires a specific format for the CAN message’s identifer. The ID can consist of 11 bits, or optionally 29 bits in the extended format. According to the data gathered and John Deere documentation, the extended 29 bit format is being used.