Rockwell ArmorStratix 5700 series, Instructions Manual

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Rockwell Automation Publication 1783-UM007F-EN-P - September 2016 19
About the Switches Chapter 1
EtherNet/IP CIP Interface Stratix switches contain an EtherNet/IP network interface. The EtherNet/IP
network is an industrial automation network specification from the Open
DeviceNet Vendor Association (ODVA). The network uses the Common
Industrial Protocol (CIP) for its application layer and TCP/UDP/IP for its
transport and network layers. This interface is accessible via any of the Ethernet
ports by using the IP address of the switch.
CIP Network Connections
CIP is an object-oriented, connection-based protocol that supports two basic
types of messaging:
• Explicit
• Implicit (I/O)
A maximum of 32 connections is available. Both connection types must use the
switch password before any switch parameters can be written. The password is
the same one you enter during Express Setup.
EtherNet/IP QuickConnect Technology
EtherNet/IP QuickConnect technology enables EtherNet/IP devices to
quickly power up and join an EtherNet/IP network. Stratix switches can be a
part of a network configuration that uses QuickConnect technology. To use
the switches in a network that supports QuickConnect technology, you must
apply specific port settings to the switch. To configure the switch and apply the
port settings for QuickConnect technology, refer to the Ethernet
QuickConnect Application Technique, publication
ENET-AT001 .
Connection Description
Explicit Messaging Explicit Messaging connections provide generic, multi-purpose communication paths between two devices. These connections are often referred
to as messaging connections. Explicit messages provide request/response-oriented network communication. Each request is typically directed at
another data item. Explicit messages can be used to configure, monitor, and troubleshoot the switch.
The Explicit Messaging interface is used by the Studio 5000 Logix Designer® application.
Implicit messaging
(I/O connections) I/O connections provide dedicated, special purpose communication paths between a producing application and one or more consuming
applications. The application-specific I/O data that moves through these connections is typically a fixed, cyclical structure.
The switch supports two I/O connection choices.
• Input Only
• Exclusive Owner
Both connections are cyclic and adjustable from 300...5000 ms.
The Input Only connection contains a data structure with status information on the switch in general and specific status on each of the ports. This
connection is multicast. Multiple controllers can share the connection.
The Exclusive Owner connection uses the same Input data structure as the Input Only connection, but adds an Output data structure. The Output
data contains a bit for each port that lets you enable or disable each port separately. While the Input data on this connection can be shared via
multicast by multiple controllers, only one controller can own the Output data. If a second controller attempts to open this connection, the
connection is rejected.
IMPORTANT Because the controller sends output data cyclically, the output data
overrides attempts by other software tools or visualization stations
to enable or disable a port.