HMS Anybus X-gateway User manual

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HMS Industrial Networks
Mailing address: Box 4126, 300 04 Halmstad, Sweden
Visiting address: Stationsgatan 37, Halmstad, Sweden
Connecting Devices
TM
E-mail: [email protected]
Web: www.anybus.com
Anybus X-gateway
J1939 to Modbus Interface
User Manual
Part No.AB7612
For Firmware Revision 2.06.01 and Later
Manual Revision 1.20
Doc.Id. HMSI-168-25

Table of Contents i
© 2012 HMS Industrial Networks AB Doc.Id. HMSI-168-25
Table of Contents
Preface......................................................................... iii
Important User Information ................................... iii
Related Documentation.......................................... iv
Anybus X-gateway Module Description ................ 1-1
Overview .................................................................... 1-1
Theory of Operation ................................................... 1-2
J1939 Features .......................................................... 1-3
Modbus Features ....................................................... 1-3
System Requirements ................................................ 1-4
Hardware Description................................................. 1-5
Installation................................................................ 2-1
Installation and Operation Requirements ................... 2-1
Power and Network Connector .................................. 2-2
Configuration Port Connector..................................... 2-4
Configuration ........................................................... 3-1
Anybus Configuration Tool (BWConfig) ..................... 3-1
Modbus Network Configuration .................................. 3-6
J1939 Network Configuration..................................... 3-7
J1939 I/O Configuration ........................................... 3-10
Modbus Interface..................................................... 4-1
Network Communication ............................................ 4-1
Supported Modbus Functions .................................... 4-2
Diagnostic Subfunctions............................................. 4-3
Modbus Addressing ................................................... 4-7
Diagnostic Registers .................................................. 4-9
Interaction with I/O Tables ....................................... 4-10
Example Application ............................................... 5-1
Scenario ..................................................................... 5-1
Modbus Network Configuration .................................. 5-2
J1939 Network Configuration..................................... 5-3
J1939 I/O Configuration ............................................. 5-4

Table of Contents ii
© 2012 HMS Industrial Networks AB Doc.Id. HMSI-168-25
J1939 Interface......................................................... 6-1
Address Management ................................................ 6-1
Communications Methods.......................................... 6-2
Message Transmission .............................................. 6-3
Receiving Messages .................................................. 6-6
Transport Protocol for Large Messages ..................... 6-8
J1939 Diagnostic Messages ...................................... 6-9
Bus-Off Reset Option ............................................... 6-13
Offline Detection....................................................... 6-14
J1939 Baud Rate ..................................................... 6-17
Status and Diagnostics............................................. 7-1
Anybus X-gateway LEDs ........................................... 7-1
Status Codes.............................................................. 7-3
Specifications............................................................ 8-1
Environmental Specifications ..................................... 8-1
EMC Directive Compliance ........................................ 8-1
Electrical Specifications.............................................. 8-1
Mechanical Specifications .......................................... 8-2
I/O Data Sizes ............................................................ 8-3
Modbus Specifications ............................................... 8-3
J1939 Specifications .................................................. 8-3
Connectors................................................................ 9-1
Power and Network 15-Pin D-Subminiature............... 9-1
Configuration 25-Pin D-Subminiature......................... 9-2
Support ................................................................... 10-1

Preface iii
© 2012 HMS Industrial Networks AB Doc.Id. HMSI-168-25
Preface
Important User Information
The data and illustrations found in this document are not binding. We reserve the
right to modify our products in line with our policy of product development. The
information in this document is subject to change and should not be considered as
a commitment by HMS Industrial Networks. HMS Industrial Networks assumes
no responsibility for errors that may appear in this document
There are many applications of the Anybus X-gateway module. Those responsible
for the use of this device must satisfy themselves that all necessary steps have
been taken to verify an application meets all performance and safety requirements
including any applicable laws, regulations, codes, and standards.
The illustrations and samples in this guide are intended solely for the purpose of
example. HMS Industrial Networks does not assume responsibility or liability for
actual use based upon the examples shown in this publication.
FAIL-SAFE OR CRITICAL OPERATIONS
This product is not designed, intended, authorized, or warranted
to be suitable for use or resale as control equipment in, or for
other applications related to, hazardous or potentially-hazardous
environments or applications requiring high-availability or fail-
safe performance, such as in the operation of nuclear facilities,
aircraft navigation or communications systems, air traffic con-
trol, life support, public works, weapons systems, or any other
application in which the failure of a product could lead to prop-
erty damage, death, personal injury, or environmental damage.

Preface iv
© 2012 HMS Industrial Networks AB Doc.Id. HMSI-168-25
Related Documentation
Modbus is a trademark of Modbus.org.
Microsoft, MS-DOS, and Windows are trademarks of Microsoft Corporation.
Document Name Author Web Page
Modbus Protocol Specification Modbus-IDA www.modbus.org
J1939 Recommended Practice SAE www.sae.org
Table 1-1 Related Documentation

Chapter 1 Anybus X-gateway Module Description 1-1
© 2012 HMS Industrial Networks AB Doc.Id. HMSI-168-25
Anybus X-gateway Module Description
Overview
The X-gateway J1939 to Modbus Interface (JMI) allows you to monitor and con-
trol data on a J1939 heavy duty vehicle network using a Modbus RTU master
device. Data from J1939 messages are mapped to I/O table locations, making
them addressable using standard Modbus read and write commands.
Examples of JMI applications:
• An interface used on a diesel generator package to access engine parame-
ters from a Programmable Logic Controller (PLC).
• An on-vehicle gateway used to interface the J1939 vehicle network to an
on board industrial automation based control system.

Anybus X-gateway Module Description 1-2
© 2012 HMS Industrial Networks AB Doc.Id. HMSI-168-25
Theory of Operation
The JMI provides centralized data storage, the “PassageWayTM”, for data that is
shared between the J1939 and Modbus networks. Data is placed into the Passage-
Way by one network interface, allowing the data to be read through the other net-
work interface.
The JMI appears as a single device on either network using standard protocol
mechanisms. No special, or extended, protocol features are required of the devices
on either network to read and write the data flowing through the PassageWay; all
cross-network activity is transparent to the devices on either network.
Figure 1-1 JMI PassageWay Operation
Modbus RTU Network
J1939 Network
PassageWay
Input
Table
Output
Table
Receive PGNs
Send PGNs
Read Inputs
Write Outputs

Anybus X-gateway Module Description 1-3
© 2012 HMS Industrial Networks AB Doc.Id. HMSI-168-25
J1939 Features
• Transmission and reception of all types of J1939 messages, including
PDU1, PDU2, broadcast and destination specific.
• Complete network address management including address claim, protec-
tion, and yield on higher priority conflict.
• Network address can be self-configurable over a range of addresses.
• J1939 Transport Protocol for transmission and reception of large mes-
sages (9 - 1785 bytes). Both connection based (RTS/CTS) and broadcast
(BAM) are supported.
• Configurable CAN bus-off reset option will reset the network interface
and attempt to return to online when a CAN bus-off condition is detected.
• Configurable diagnostic tables provide monitoring of J1939 diagnostic
messages for active and previously active diagnostics (DM1 and DM2).
Modbus Features
• Modbus RTU slave.
• RS-485 half-duplex (2 wire) serial interface.
• Configurable baud rates of 4800, 9600, and 19200 bps.
• Configurable for no, odd, or even parity and 1 or 2 stop bits.
• Support of all commonly used Modbus functions for reading and writing
I/O data and diagnostics.
• Overall module, Modbus, and J1939 status and diagnostics accessible
through Modbus diagnostic functions and addressable registers.

Anybus X-gateway Module Description 1-4
© 2012 HMS Industrial Networks AB Doc.Id. HMSI-168-25
System Requirements
The following hardware and software components are needed to use the X-gate-
way J1939 to Modbus Interface.
Required Hardware
• Anybus X-gateway JMI module.
• J1939 network connection.
• Modbus RTU network connection.
• Modbus RTU master device.
• 24 VDC power connection
• PC to execute Anybus X-gateway Configuration Tool (BWConfig).
• RS-232 null-modem cable to connect PC running BWConfig to the JMI.
Optional Hardware
• DIN rail to mount the JMI.
Required Software
• Anybus Configuration Tool software (BWConfig) to configure the JMI.
For support of all features described in this manual, the revision of
BWConfig should be v1.6 or later.
• BWConfig requires that the PC be running Microsoft Windows 98, NT,
2000, or XP.

Anybus X-gateway Module Description 1-5
© 2012 HMS Industrial Networks AB Doc.Id. HMSI-168-25
Hardware Description
The Anybus X-gateway J1939 to Modbus Interface has a 15-pin D-Subminiature
connector for power and network connections. This connector has pins for module
power, J1939 CAN connections, and Modbus RS-485 connections. See “Installa-
tion” Page 2-1 for details on using this connector.
A 25-pin D-Subminiature connector is provided for connection to a PC running
the Anybus Configuration Tool. This is a standard RS-232 DTE connection and
will require a null-modem cable (pins 2 and 3 swapped) to connect the module to
a PC serial port or USB serial adapter. See “Installation” Page 2-1 for details on
using this connector.
The front of the module has a set of 3 LEDs that are used for status indication.
These LEDs provide visual status for the overall module, the J1939 interface, and
the Modbus interface. See “Status and Diagnostics” Page 7-1 for details on how
the LEDs are used.
The back of the module has a DIN rail mount to allow the module to be mounted
on a DIN rail.