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  J1939 TO MODBUS  |  ETHERNET TO J1939   |  PROFIBUS TO J1939

J1939 to Modbus Interface (p/n AB7606)

Firmware Version 2.04 Now Available (Sept. 2009)

The BridgeWay J1939 to Modbus Interface provides connectivity between a Modbus RTU (RS485 serial) network and a J1939 (CAN) network. The AB7606 operates as a Modbus RTU Slave device, allowing a Modbus RTU Master to read and write J1939 PGN data. Pyramid Solutions provides a free downloadable Windows-based configuration tool (BWConfig) for the AB7606. This PC-based software enables mapping of J1939 parameter (PGN) data into AB7606 I/O table memory, which is accessible from the Modbus RTU Master.

Configuration of the AB7606 is simple using BWConfig and consists of setting up an I/O table containing J1939 PGNs you wish to read or write and the rate that each will be read or written from / to the J1939 network. BWConfig maps the I/O table to a range of Modbus Registers accessible from the AB7606 Modbus RTU interface. The configuration is downloaded from BWConfig to the AB7606 via an RS232 connection and is saved in FLASH memory.  You can also upload an existing configuration from the AB7606 for comparison or for updating the configuration.

► See our sample configurations & app notes to get instant access to
     J1939 data or to test your application !

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► Click here to access AB7606 files & information!

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Examples Use Cases

• A low-cost interface used on Oil & Gas Equipment, Marine Vessels, Locomotives, Pumping Stations, Generators, Engine Test Cells and other mobile and stationary equipment to access engine parameters from a Programmable Logic Controller (PLC), HMI or PC and send data onto the J1939 network for control and management.

• An on-vehicle gateway (e.g. Bus, Ag or Construction Equipment) used to interface a J1939 network to an onboard industrial automation based control & monitoring system or HMI

Key Features

• Configuration via free Windows-based software tool (BWConfig)
• Supports FLASH field upgrades
• LED network and module status indicators
• DIN rail-mountable (included)
• Rugged extruded aluminum enclosure
• Brand label/OEM options
• Supports SAE J1939 (CAN) and Modbus RTU Slave (Serial RS485)

Example Use Cases

• Low-cost interface used on Oil & Gas equipment to access engine parameters from a Programmable Logic Controller (PLC), HMI or PC
• An on-vehicle gateway used to interface a J1939 network to an onboard industrial automation based control & monitoring system

Target Industries & Application Examples

• Oil & Gas Equipment
• Marine Vessels
• Locomotives
• Commercial, Construction, Agricultural & Recreational Vehicles
• Electric Power Generation (Diesel GenSets)
• Water & Waste Water Systems
• Engine Testing & Validation
• Monitoring / Control systems requiring J1939 data & control

Specifications for J1939 to Modbus - Part# AB7606

• Mechanical Dimensions: L = 4.96” (126mm); W = 4.30” (109mm); H = 1.65” (42mm)
• Approximate Weight: 16 oz
• Operating Voltage: 11 – 32 VDC
• Current Requirements: 93-95 mA at 24 VDC
• Operating Temperature: 0 - 70° C
• EMC Compliance: EN50081-2 and EN50082-2
• Certifications: CE & cULus
• UL certification: E203225, Listed 67AM, UL-1604 Class 1, Div 2, GP A, B, C, D, Temp Code T4
• ATEX certification: ATEX 135419, II 3 G, EEx nL IIC T4, DEMKO 03

Optional Accessories

AB7606 Configuration Kit - Part# AB7606-CFG

This kit will get you up and running quickly with the included serial cable and CD containing the latest AB7606 documents, software and examples

The kit contains the following materials:

• 3 Meter 25 to 9 pin Serial Cable used for configuring the module with our  BWConfig software
• Mini CD containing the latest version of our AB7606 User Manual, BWConfig software, Application Notes and Sample Configurations

AB7606 15 Pin Connector and Backshell kit - Part# AB7606-CON

This kit provides the materials you need to connect the AB7606 to your J1939 Network, Module Power and Modbus RTU RS485 network.

The kit contains the following materials:

• 15 Pin D Connector with numbered solder cups
• Plastic Back Shell kit with cable clamp and thumb screws

Version 2.04 & 2.03 Firmware Updates

► Click here to get the latest firmware update for the AB7606

Important Firmware Update Notes

Other Key Firmware Updates

• Updates to enhance module reliability
• The module now supports up to 35 incoming J1939 Transport Protocol (large message) sessions. Previously the module was limited to a single BAM and RTS / CTS session.
• The module can now monitor up to 120 different PGNs in the Input data point configuration and transmit up to 100 different PGNs in the Output data point configuration. The previous limitation was 50 and 50.
• The J1939 Transport Protocol (large message) handler now rejects incoming session requests (both BAM and RTS / CTS) for PGN / Address pairs that are not configured as input data points. Previously all large message sessions were accepted and the messages were filtered after they had been completely received.
• The SPN Conversion Method Flag is now included in the high bit of the Occurrence Count field in the J1939 diagnostic table entries. See the important notes section above and the user manual for more details.