ProVU4 Controller, Profiler & Recorder/Controller - Product Manual
Page 82
Serial Communications
59407, Issue 3 – May 2011
Function 06 - Write Single Register
Writes two bytes to a specified word address.
QUERY
Function
Address of Word
Value to write
06
HI
LO
HI
LO
RESPONSE
Function
Address of Word
Value written
06
HI
LO
HI
LO
Note:
The Response normally returns the same data as the Query.
Function 08 - Loopback Diagnostic Test
QUERY
Function
Diagnostic Code
Value
08
HI =00
LO=00
HI
LO
RESPONSE
Function
Sub-function
Value
08
HI=00
LO=00
HI
LO
Note:
The Response normally returns the same data as the loopback Query. Other Diagnostic
Codes are not supported.
Function 16 - Write Multiple Registers (
0x10 Hex
)
Writes consecutive word (two-byte) values starting at the specified address.
QUERY
Function
1
st
Write
Address
Number of
Words to Write
Number of
Query Bytes
1
st
Query
Byte
2
nd
Query
Byte
etc
Last Query
Byte
10
HI
LO
HI
LO
→
RESPONSE
Function
1
st
Word Address
Number of Words
10
HI
LO
HI
LO
Note:
The number of data bytes that can be written in one message is 253 bytes.