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Appendix BCompoWay/F Master Protocol
141
Example: VARIABLE AREA READ
The following command and text are used to read the present value, maximum value, minimum value, and status
of the Intelligent Signal Processor.
Command and Text
4 bytes2 bytes 2 bytes2 bytes 4 bytes
Variable
type
First read address
No. of
elements
1, 2, 3... 1. Variable Type
Variable type Contents
“C0” Present value, maximum value, minimum value, status ,
and comparison value
2. First Read Address
Specify the address of the data to be read in 4 digits Hex.
3. Number of Elements: 4 Digits Hex
Number of elements Process
“0001” Read the data and end normally.
Note If “0000” is specified, nothing will be read and a normal end will be returned. A parameter error will occur for
any settings other than “0000” and “0001.”
Response Text
8 bytes
2 bytes 2 bytes 4 bytes
Response code
Read data
1, 2, 3... 1. Response Code: MRES, SRES
Response code Meaning
“0000” Normal end
“1001” Command too long
“1002” Command too short
“1100” Parameter error
“1101” Area type error
“1103” First address range error
“2203” Operating error
2. Read Data
The specified data is returned in 8 digits of hexadecimal data.