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R-11
A Standard System Protocol
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
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Example: VARIABLE AREA READ
The following command and text is used to read the present value, maximum value, minimum value,
and status of the Intelligent Signal Processor.
Command Text
1
Variable Type
2
First Read Address
Specify the address of the data to be read in 4 digits Hex.
3
Number of Elements: 4 Digits Hex
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
1
Response Code: MRES, SRES
2
Read Data
The specified data is returned in 8 digits of hexadecimal data.
Variable type Contents
"C0" Present value, maximum value, minimum value, status, and
comparison value
Number of elements Process
"0001" Read the data and end normally.
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
4 bytes 2 bytes 2 bytes 2 bytes 4 bytes
Variable
type
First read address
No. of
elements
"00" "00" "00" "0001" "C0"
8 bytes
2 bytes 2 bytes 4 bytes
Response code
Read data
"01" "01"