241
Sending Explicit Messages
Section 9-1
EXPLICIT MESSAGE SEND (28 01)
EXPLICIT MESSAGE SEND will send a DeviceNet Unit-compatible explicit
message to the specified class of another node and receive a response.
The other node is specified with the destination node address in the com-
mand. The actual destination IP address is as follows.
Destination IP address =
(Local IP address & Subnet mask)
+ Destination node address
Command Block
Response Block
Normal Response
Error Responses
The following response is returned if an error occurs for the explicit message.
The following response is returned if the explicit message cannot be sent or
times out.
Parameters
Destination node address (command):
The node address of the destination of the explicit message.
The node address of the local EtherNet/IP Unit or built-in EtherNet/IP port is
specified in the control data for the CMND(490), but the node address of the
actual destination is specified here in the FINS command. The destination
node address cannot be set to 00 hex or FF hex.
Service code (command, response):
A service code defined for EtherNet/IP. In a normal response, bit 15 of the ser-
vice code specified in the command will be turned ON and returned. In an
error response, 94 Hex will always be returned.
01
28
Destination node address
Instance ID
Service data
Class ID
Command
code
468 bytes max.
Service code
01
28
Destination node address (remote node)
No. of bytes
received
Service data
Response
code
Command
code
498 bytes max.
Service code
00
00
01
28
Destination node address (remote node)
Service code 94 (Hex)
No. of bytes
received
Response
code
Command
code
Error code
00
00
94
01
28
Response
code
Command
code
Summary of Contents for CJ2H-CPU6 - REV 02-2010
Page 2: ......
Page 4: ...iv...
Page 6: ...vi...
Page 14: ...xiv...
Page 18: ...xviii...
Page 38: ...12 Network Configurator Overview Section 1 5...
Page 58: ...32 Selecting the Network Devices Section 2 3...
Page 116: ...90 Auxiliary Area Data Section 4 5...
Page 222: ...196 Message Communications Errors Section 7 6...
Page 364: ...338 Using the Backup Tool Section 13 3...
Page 402: ...376 CS CJ series Ethernet Unit Function Comparison Appendix A...
Page 404: ...378 Ethernet Network Parameters Appendix B...
Page 406: ...380 TCP Status Transitions Appendix C...
Page 452: ...426 Precautions for Using Windows XP Vista or Windows 7 Appendix G...
Page 460: ...434 Index...
Page 462: ...436 Revision History...
Page 463: ......