Hamilton-sundstrand-company Fuel Metering Valves XVG Manuel d'utilisateur

User Manual MODBUS Communication For XVG/eXVG Gas Fuel Metering Valves SD-6021 Rev 1 September 2008 Precision Engine Co

Starting Address Hi 00 Starting Address Hi 00 Starting Address Lo 01 Starting Address Lo 01 Quantity of Registers Hi 00 Quantity of Registers

8.1 RS-232 Connection (for XVG/eXVG with RS-232 interface) PC COM Port (DB9M Connector) XVG/eXVG Terminal Block Wire Color (If XVG/eXVG is suppli

9.1.1 General Setup Parameters Register Number XVG/eXVG Parameter Name Write Access Description Type Default Value 3500 IDM_MODE W2 Operating M

Register Number XVG/eXVG Parameter Name Write Access Description Type Default Value 3521 IDM_FLOWCTRLEN W4 Flow Control Enable: 0=Baseline (Stroke

Register Number XVG/eXVG Parameter Name Write Access Description Type Default Value 3541 IDM_PARITY W2 Modbus parity: 0 = None, 1 = Odd, 2 = Even

Register Number XVG/eXVG Parameter Name Write Access Description Type Default Value 5508 5509 IDM_SETUPCHECK W4 Setup parameter checksum U32 1

Register Number XVG/eXVG Parameter Name Write Access Description Type Default Value 7578 7579 IDM_INPRESOFF W4 Input Pressure Sensor Offset: ran

Register Number XVG/eXVG Parameter Name Write Access Description Type Default Value 7650 7651 IDM_AO0CUROFF W4 AO0 Current Offset: range -4 to

The position interpolation feature is enabled / disabled via the IDM_POSINTTBLEN setup parameter. The valve will ignore this data in this table and

Register Number XVG/eXVG Parameter Name Write Access Corresponding Demand Type Pre-Cal Default 5670 5671 IDM_POSTBL35 W2 Counts: 2218.6250, 13.

PREFACE The purpose of this manual is to enable users to:  Understand the basics of XVG/eXVG Modbus communications via standard definitions,

Register Number XVG/eXVG Parameter Name Write Access Corresponding Pressure Ratio Type Default Value 5950 5951 IDM_PRTBL0 W4 0.1 U32 1677722

Register Number XVG/eXVG Parameter Name Write Access Corresponding CdA value Type Default Value 6050 6051 IDM_CDATBLPR1S10 W4 0.464591026 U32

Register Number XVG/eXVG Parameter Name Write Access Corresponding CdA value Type Default Value 6144 6145 IDM_CDATBLPR4S12 W4 0.555297971 U32

Register Number XVG/eXVG Parameter Name Write Access Corresponding CdA value Type Default Value 6238 6239 IDM_CDATBLPR7S14 W4 0.618915975 U32

Register Number XVG/eXVG Parameter Name Write Access Description Type Default Value 7544 7545 IDM_BACKPRES0 W2 Backpressure 0 Float 14.7 7546

Register Number XVG/eXVG Parameters Name Write Access Description Type 3014 IDM_ADCINPRES RO Input Pressure counts, range 0-4095 U16 3015 IDM_

Register Number XVG/eXVG Parameters Name Write Access Description Type 3042 IDM_DOUT1 W3 Digital Output 1 Value, Current/Voltage: Bit0-Bit5=AI0-AI

Register Number XVG/eXVG Parameters Name Write Access Description Type 3073 IDM_ADCB3GAINOFF RO Analog input w/Auto ADC gain/off applied, cnts 0-4

Register Number XVG/eXVG Parameters Name Write Access Description Type 3099 IDM_TESTSTR[0] 3100 IDM_TESTSTR[1] 3101 IDM_TESTSTR[2] 3102 IDM_TESTSTR

Register Number XVG/eXVG Parameters Name Write Access Description Type 5014 5015 IDM_LVDTSCALEFCT RO Obsolete U32 5016 5017 IDM_RUNTMHRS RO

Table of Contents PREFACE...

Register Number XVG/eXVG Parameters Name Write Access Description Type 5056 5057 IDM_OPS RO Histogram array parameter for OutletPressure, seconds

Register Number XVG/eXVG Parameters Name Write Access Description Type 7072 7073 IDM_FVOLTSNEG15 RO Fault Log, VoltsNeg15 at time of fault Floa

- Only one host master can send request message at a time. - Each XVG/eXVG unit on the same network must have a unique address. - Adhere to the

All XVG/eXVG parameters can be uploaded using Modbus Read Registers function then convert the results into appropriate number representation for di

Perform the following steps to retrieve the fault records: 1. Read register 3045, IDM_RECORDS, to get the current number of fault records availab

- Write 2 to register 3005. Valve will close and reset. 6. To restore the previous R and K values, write the value of R to register 7518 and th

6. Write 32 to register 3033. Wait 100 milliseconds. 7. Write 1 to register 3005. Wait 100 milliseconds. 8. Write 2 to register 3005. Valve

1 Serial Communication The primary interface used for XVG/eXVG is serial communication, which is the exchange of data one-bit-at-a time, sequenti

Follow RS232 and RS485 standards for wiring and biasing of the communication bus. 6 XVG/eXVG Modbus Communication Default Settings The default s

7.2 Modbus Transactions The slave’s response message is also constructed using Modbus protocol. It contains fields confirming the action taken, a

7.4 Modbus Functions The following Modbus functions are supported by the XVG/eXVG: - Read Registers (0x03) - Write Single Register (0x06) - W

Example: Request to read holding registers 108 - 110 Request Response 01 03 00 6B 00 03 74 17 01 03 06 02 2B 00 00 00 64 05 7A Slave Addre

Example: Request to write 0x03 to register 2. Request Response 01 06 00 01 00 03 98 0B 01 06 00 01 00 03 98 0B Function 06 Function 06 Regist