Changes from previous version

 

Version 2.0

This is a heavily revised version that includes many pages that were not previously in the public domain.

 

Version 2.1

In page 153: register numbers for 2131 and 2133 corrected.

 

Version 2.2

In page 170: separate register allocation table for 332,334 created (registers 0 to 21 only)

 

Version 2.3

In page 153: For 8xxx the reserved registers are now unimplemented and the number of alarms has been corrected.

 

Version 2.4

In page 4: added 2 new registers (193 and 194) for S1 and S2 phase rotation.

 

Version 2.5

In page 180: added register mapping for 335 transfer switch

In page 190: added register mapping for 335 transfer switch

 

Version 2.6

In pages 3, 16, 153, 154, 160, 170, 190, 200-249: Registers and tables added/amended for 335 transfer switch

In pages 180,181: Common family register allocation (registers 64 to 255 as detailed in notes) documented in separate table

 

Version 2.7

In page 2: removed redundant ‘Modem dial back string’ and shifted up the remaining strings for consistency with module implementations

 

Version 2.8

In page 152: Indication of numbers and types of expansion modules for 335

In page 154: Expansion unit watchdog alarm added to 335 register table

In page 160,170: Clarification of expansion digital/analogue inputs

In page 180: Digital outputs and LED colours added for 335; Corrections to 334/335 register order

In page 190: Common family register table (as detailed in notes) re-labelled

In pages 225-231: 335 PLC function strings moved

Version 2.9

In pages 153, 160, 170, 222-239, 240-246: Corrections to 7xxx tables.

In page 152: Numbers of expansion modules for 335 amended

In page 153: Register matrix added for 3xx family

In page 154: 330,331,333 module documented and unimplemented/reserved registers corrected for 3xx

In page 156: Register matrix added to identify expansion module support for 8xxx/73xx/335

In page 158: Register matrix added to identify expansion module support for 8xxx/73xx/335

In page 160: Register matrix added to identify expansion module support for 3xx

In page 170: Numbers of expansion modules for 335 amended and Register matrix added to identify expansion module support for 3xx

In page 171: Register matrix added to identify expansion module and PLC support for 3xx

In page 180: 330,331 and 333 modules documented; Register matrix added to identify allocation for 3xx family; Matrix added to common family register table to identify implemented registers for each family/module; LED colour table amended

In page 181: Matrix added to common family register table to identify implemented registers for each family/module;

In page 190: 330,331, and 333 modules documented; Matrix added to common family register table to identify implemented registers for each family/module; unimplemented/reserved registers corrected for 3xx

In pages 200-239: 330,331 and 333 modules documented;334 and 335 module tables separated; 335 table amended

 

Version 2.10

In Page 153: Tables amended to show details of registers and layout required for first expansion module for each set and summaries for subsequent modules of the same type; PLC functions numbered 1 to 20 and referred to as functions instead of alarms; Corrections to 3xx tables.

In Pages 158: Corrections to 335 tables.

In Page 160: PLC functions numbered 1 to 20 and referred to as functions instead of alarms; Registers reserved for 2130 expansion modules 4-9 added to 3xx table.

In Page 170: Correction to 8xxx 2131 expansion modules 1-3 description; Correction to numbers of digital inputs available for use on 3xx;

In Page 171: Correction to 8xxx table for 2133 Expansion modules 2 and 3 registers start addresses; Registers reserved for 2130 expansion modules 4-9 added to 3xx table.

In Page 180: Correction to 330/331/334, 335, and 332/333 tables.

In Page 190: Corrections to 335 tables.

In Pages 200-239: Correction to 7xxx reserved page numbers; Modification to 8xxx pages 208-213 for clarity; Corrections to 335 page 201 and 226 tables; PLC functions numbered 1 to 20 and referred to as functions strings for consistent terminology.

In Pages 240-246: Corrections to 335 pages 241-246 tables.

In Page 2:Re-instated modem dial back string

 

Version 2.11

In Page 6: Added derived instrumentation for 335

 

Version 2.12

Throughout: - all relevant descriptions changed from “7xxx” to "72xx/73xx" and from “8xxx” to "74xx/8xxx" to differentiate between 72xx/73xx and 74xx.

 

Version 2.13

Added Page 9 – Total Harmonic Distortion measurements (on 88xx/84xx only)

 

Version 2.14

Added notes 7 to section 8.2 - stating maximum allowable write frequency

 

Acknowledgements

The following trademarks are and copyrights are acknowledged:

 

Modbus is copyright of Modbus-IDA.

Windows is a registered trade mark of Microsoft Corporation.

Unicode is a registered trademark of the Unicode Consortium.

J1939 is copyright of the Society of Automotive Engineers, Inc.

 

Introduction

The purpose of this standard is to provide a uniform protocol for communicating with any generating set control equipment. It allows all telemetry information relevant to a generating set to be read from the control equipment, regardless of manufacturer or specification, and allows basic operations such as starting and stopping the engine, transferring the load etc. to be performed remotely.

 

This standard does not define how to program the control equipment, or transfer manufacturer specific information such as configurations to or from the equipment.

 

This standard does not define the physical link, but is compatible with RS232, RS423, RS485, modem links or any similar system.

 

This standard uses the Modbus protocol, complete details of which can be found on the Modbus-IDA web site http://www.modbus-ida.org

 

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