Omron CS1W-DRM21, CJ1W-DRM21 operation manual Example Sending Explicit Messages Using CMND490

Sending Explicit Messages	Section 6-4
Command Block
Eg. For $1234	Eg. For $15678234

Service Data Service Data

The format from CMND(490) operand S onwards will be set as follows:

Example: $1234	Example: $12345678
From higher byte	From higher byte
Bit	Bit
From lower byte
Bit	From lower byte
	Bit

The response format data in service data that is in word (2-byte) or double- word (4-byte) units, such as word data and ERROR CLEAR codes, is also specified from low to high bytes in response block format

Example: Sending Explicit Messages Using CMND(490)

DeviceNet Unit No. 0

			CMND(490)
		PC's	instruction
		CPU
		Unit
		Node address 05
		Unit address FE Hex or 10 Hex
	Explicit message		Slave node 11
Operation	The vendor code is read from a Slave (OMRON vendor code: 002F Hex)
	using the EXPLICIT MESSAGE SEND command, 28 01. The command data
	is written starting at DM01000, and the response data is stored starting at
	D02000. When execution of CMND(490) has been completed, the completion
	code is stored in D00006 and the instruction is executed again.
Command Details	The following command is used: [ CMND S D C ]
	S = D01000:	First command word at local node
	Settings (Hex)
	D01000 = 2801:		Command Code
	D01001 = 0B0E:		Slave node address: 11
			Service code: 0E
	D01002 = 0001:		Class ID: 0001
	D01003 = 0001:		Instance ID: 0001
	D01004 = 0100:		Attribute ID: 01
	D = D02000:	First response word at local node
	C = D00000:	First control word

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