West Control Solutions ProVU 4 - Manual (Page 81)

ProVU4 Controller, Profiler & Recorder/Controller - Product Manual
Page 80 Serial Communications 59407, Issue 1 – March 2008
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 Query. Other Diagnostic Codes are
not supported.
Function 16 - Write Multiple Registers (0x10 Hex)
Writes a 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 that can be written in one message is 253 bytes.