Omron CJ1W-DRM21 Operation Manual page 334

Appendices
Parameter Details
[Destination Node Address] (Command)
Specifies the node address of the explicit message destination.
The node address of the local Master Unit is specified as the input variables DstNetAdr (Destination
network address) in the SendCmd instruction when the Explicit Message Send command is sent,
but the node address of the actual destination is specified here.
[Service Code] (Command, response)
For commands, the service code defined by the DeviceNet is specified.
For normal responses, the value for which bit 15 of the service code specified in the command turns
ON is returned. For error responses, 94 hex, which indicates 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 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 DeviceNet Slave manufactured by another company and receives a
response.
• The input variables DstNetAdr (Destination network address) in the SendCmd instruction speci-
fies the local node DeviceNet Master Unit when the Explicit Message Send command is sent. The
actual destination node is specified with the use of the Destination Node Address in the Explicit
Message Send command.
Additional Information
• Refer to DeviceNet Specifications for explicit message parameter details.
• For information on explicit messages for OMRON slave, refer to the DRT2 Series DeviceNet
Slaves Operation Manual (Cat. No. W404).
• Contact the ODVA to obtain copies of the DeviceNet specification.
ODVA's URL: http://www.odva.org/
A-42 CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)