Omron CQM1H-SCB41 operation manual Example Variable Area Read, Command and Text, Response Text

CompoWay/F Master Protocol Appendix B

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

			Variable		First read address	No. of
						elements
			type
		2 bytes 2 bytes		2 bytes	4 bytes	4 bytes
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

				Response code	Read data
		2 bytes 2 bytes		4 bytes	8 bytes
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.

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