Hamilton Sundstrand Company Fuel Metering Valves XVG Benutzerhandbuch

 

 

 

Starting Address Hi 00  

Starting Address Hi 00 

Starting Address Lo 01  

Starting Address Lo 01 

Quantity of Registers Hi 00  

Quantity of Registers Hi 00 

Quantity of Registers Lo 02  

Quantity of Registers Lo 02 

Byte Count 04 

CRC 1008 

Registers Value Hi 00 

 

Registers Value Lo 0A 

 

Registers Value Hi 01 

 

Registers Value Lo 02 

 

CRC 9230 

 

 
 
7.4.4  Diagnostics (0x08) (Loopback) 
 
Request & Response message: 
SLAVE ADDRESS + FUNCTION CODE + SUB-FUNCTION CODE + DATA + 
CRC 
 

Request 
 

Slave Address 

1 Byte  

0 to 247 

Function code  

1 Byte  

0x08 

Sub-function 2 

Bytes 

0x00  

Data Any 

 value 

CRC  

0x0000 to 0xFFFF 

 
An exact copy of the diagnostic query message is sent back as a response. 
 

 
The XVG/eXVG can communicate via RS-232 or RS-485, one interface or the other. 
To communicate with an XVG/eXVG that was built with RS-485 interface circuit, you 
may need to use RS232-to-RS485 converter. 
The connection from the PC or PLC’s serial port to the XVG/eXVG can be made as 
follows: 
 
 
 
 
 
 
 
 

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