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DeviceNet Explicit Message Send Command for Other Manufacturer Nodes Appendix F
Parameter Details
[Send Destination Node Address] (Command)
Specifies the node address of the explicit message destination.
The local node DeviceNet Unit is specified for CMND and IOWR instruction
control data for Explicit Message Send commands and the actual destination
node is specified here.
[Service Code] (Command, response)
For commands, the service code defined by the DeviceNet is specified.
For normal responses, the value for when bit 15 of the service code specified
in the command turns ON is returned. For error responses, 94 hex, which indi-
cates an error, is returned.
[Class ID] (Command)
Specifies the class ID for the explicit message destination.
[Instance ID] (Command)
Specifies the instance ID for the explicit message destination.
[Service Data] (Command, response)
For commands, specifies the data defined by the service code.
For responses, returns the reception data defined by the service code.
[No. of Bytes Received] (Response)
Returns the number of bytes received after Source (local node) Node
Address.
[Source (local node) Node Address] (Response)
Returns the local node DeviceNet node address that was the source of the
explicit message.
[Error Code] (Response)
Returns the error code defined by the DeviceNet.
Explanation
• The Explicit Message Send command sends a DeviceNet-defined explicit
message to an OMRON Special I/O Slave Unit or a Slave manufactured
by another company and receives a response.
• Unlike other FINS commands, the Explicit Message Send command
specifies the local node DeviceNet Unit as the CMND and IOWR instruc-
tion control code destination. The actual destination node is specified
using the Destination Node Address in the Explicit Message Send com-
mand.
Always specify the local node DeviceNet Unit in the CMND or IOWR
instruction control code. If another node Master unit is specified an error
will occur.
• If the DeviceNet Master Unit receives an explicit message, it will automat-
ically return a response.
Note 1. Refer to DeviceNet Specifications for explicit message parameter details.
2. For information on explicit messages for OMRON slave, refer to DeviceNet (CompoBus/D) Slave
Manual (W347).
3. Contact the Open DeviceNet Vendor Association, Inc. (ODVA) at 8222 Wiles Road, Suite 287, Coral
Springs, FL 33067 USA (phone: 954-340-5412, fax: 954-340-5413, e-mail: billmoss@ix.netcom.com,
Home page: http://www.odva.org/) to obtain copies of the specification.