Rockwell-automation 294E ArmorStart LT EtherNet/IP Version - User Manu Manual de usuario descargar pdf (Pagina 205)

Rockwell Automation Publication 290E-UM001B-EN-P - June 2012 205

CIP Information Appendix B

Input Only Connection

This connection is used to read data from the module without controlling the

outputs. This connection type shall not be dependent on any other connection. It

is recommended that the originator sets the data size in the O->T direction of the

Forward_Open be zero, there are however no check that this is actually the case.

• Number of supported input only connections equals four (shared with

exclusive owner and listen only connection).

Listen Only Connection

This connection is dependent on another connection to exist. If that connection

(Exclusive owner or Input only) is closed, the listen only connection shall be

closed as well.

It is recommended that the originator sets the data size in the O->T direction of

the Forward_Open be zero, there are however no checks that this is actually the

case.

If no other connection exists when listen only tries to be opened, a “Controlling

connection not open (general status = 0x01, extend status = 0x0119)” error

message shall be sent.

• Number of supported listen only connections equals four (shared with

exclusive owner and input only connection).

Class 3 Connections

Explicit Message Connection

Class 3 connections are used to establish connections to the message router.

Thereafter the connection is used for explicit messaging. Class 3 connections use

TCP connections.

• 16 concurrent Class 3 connections will be supported

IMPORTANT

If an exclusive owner connection has been opened against the module and

times out, the input only connection shall time out as well. If the exclusive

owner connection is properly closed, the input only connection shall not be

affected.

Service Code

Implemented for:

Service NameClass Instance

0x01 No Yes Get_Attribute_All

0x0e No Yes Get_Attribute_Single

1 2 ... 200 201 202 203 204 205 206 207 208 209 210 ... 251 252

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Rockwell-automation 294E ArmorStart LT EtherNet/IP Version - User Manu Manual de usuario Pagina 205