Omron 3G3FV-PDRT1-SIN user manual Sysmac CV-series Message Transmission, Using CMND194

CompoBus/D Communications Card Operations Chapter 5

5-2-3 SYSMAC CV-series Message Transmission

HUsing CMND(194)

With CV-series PCs, CMND(194) is used to send explicit messages. To send an explicit message, it is necessary to place FINS command “2801” in front and to send the command to the Master Unit. The Master Unit that receives the command converts the command data to an explicit message and trans- fers it to the destination node. When sending an explicit message, it is not possible to directly specify the destination node with CMND(194).

(194)
CMND	S	D	C

DS: Beginning Command Storage Word

Specify the beginning word address for the command data transferred to the CompoBus/D Master Unit. Preset the data to be transferred in consecutive words as shown in the following table.

Word address		Bits
	15 to 8			7 to 0
S	Command data (Set explicit message FINS command “2801.”)
S+1	Node of Slave or Master for transmission		Explicit message service code
	Address: 0 to 3F hex (0 to 63)		Write: 10	Read: 0E
S+2	Class ID code (Set DeviceNet class code for relevant function.)
	Set within 0001 to 002A (hex) with Inverter’s CompoBus/D Communications Card.
S+3	Instance ID code (Set DeviceNet instance code for relevant function.)
	Set within 0001 to 0003 (hex) with Inverter’s CompoBus/D Communications Card.
S+4	Attribute ID code		Attached data (for writing)
	(Set DeviceNet attribute code for relevant
	function.)
---	Attached data (for writing)

DD: Beginning Response Storage Word

Specify the beginning word address of the area for storing responses to messages.

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