HP MicroLogix 1761-NET-ENI manual Operation Overview, Number of Connections Dedicated to

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Chapter 3

Operation Overview

Allocation of Ethernet Connections

Operation

This chapter describes ENI operation. The following information is included:

•Operation Overview

•Allocation of Ethernet Connections

•ENI Functional Overview

•Program Upload/Download and On-Line Sessions

Ethernet is the protocol used to transport TCP/IP messages. On top of TCP, Ethernet/IP is the open protocol used by the ENI. Ethernet/IP allows devices to exchange information (data); or to upload, download, and edit logic programs over Ethernet.

To communicate between devices, Ethernet/IP uses a “connection” model. Connections are dedicated paths across Ethernet between devices.

The ENI supports a maximum of 6 connections, allowing simultaneous communication with up to 6 other devices or applications. The connections are dedicated as follows:

Number of Connections	Dedicated to:

2	outgoing messages

2	incoming messages

2	either incoming or outgoing messages

	TIP	For peer connections, no more than one connection
	TIP	per destination node is established. If multiple MSG


		instructions use the same destination node, they use
		the same connection.

Publication 1761-UM006A-EN-P - February 2001

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Contents Cat. No -NET-ENI MicroLogix Ethernet Interface ENIAllen-Bradley is a trademark of Rockwell Automation Table of Contents Chapter Who Should Use this Manual PrefaceFor Read this Document Related DocumentationYour Questions or Comments on this Manual Local Product SupportTechnical Product Assistance Preface P-4 Publication 1761-UM006A-EN-P January Ethernet Connection Non-Ethernet Devices Product OverviewDescription Function Color Hardware FeaturesLED Indicators Product DrawingDF1 Settings Default Other Options Default SettingsRS-232 Settings Default Other Options Mail Operating ModesDevice Compatibility MessagingBasic Ethernet Topology Using a Web Browser with the ENIEthernet Networks 6Product Overview Publication 1761-UM006A-EN-P February Low Voltage Directive EMC DirectiveSafety Considerations DIN Rail Mounting MountingRemoval Panel MountingENI Port Identification External Power Supply WiringPin Pin Name Ethernet 8-Pin 10Base-T Connector PortEthernet Connections Maintain ENI Connections Ethernet CablesENI Connected to Catalog Number Use Cable RS-232 ConnectorRS-232 Connector Pin Assignments RS-232 CablesIncoming messages Operation OverviewNumber of Connections Dedicated to Outgoing messagesENI Functional Overview RSLinx on Ethernet PC Connected to EthernetOperation 4Operation RSLogix 6Operation ENI Configuration Utility ENI Configuration Node 248 toRS-232 Baud Rate and TCP/IP Parameters COM Port SettingsSave to ENI RAM or ENI ROM Mail SettingsMessage Routing ResetController Messaging Configuring ENI Data Parameters Target Device Parameters Configuring the ENI E-Mail From String Configuring ENI String ParametersAlways set this to Node Function Data Type Number Options Default Elements Value Node 248 Save/Reset FunctionSave/Reset Node 249 From StringTCP/IP Configuration Parameters Function Data Type Length Node 250 TCP/IP ConfigurationSubnet Mask is set to Subnet Mask Auto-Detect OperationSubnet Mask is in auto-detect Security Mask Behavior Example Condition Node 253 Baud Rate Node 252 Bootp ConfigurationNode 251 E-Mail Server Node 254 Ethernet Hardware Address ENI Baud Rate Options Configuration Value IntegerPeer-to-Peer Messaging Node Node101 Configuration Node TCP/IP addressMessage Routing ENI receives read or Node Node100103 Route 3 Address 100 Route 0 Address101 Route 1 Address 102 Route 2 Address148 DF1 Message RoutingFunction ENI Node Data Table Address Use any valid file Size in Elements Use any command supported by your controllerPage Overview Mail Messages Node 50 toSmtp E-Mail Address Configuring E-MailMessage Text Destination AddressesNode Mail Mail Address Description Message ConfigurationMessage Fields to, from, subject Sending an E-Mail Message Mail messages Example Network System DiagramRSLOGIX500 Purpose Scope131.200.50.96 Computer’s Ethernet card Example Network IP Addresses Device131.200.50.95 Throttling Message Instructions Configuring 1761-NET-ENI #1ENI #1 Configuration ENI IP Addr Screen Message Routing Nodes Function Configuring 1761-NET-ENI #2ENI #2 Configuration RSLogix 5000 Ladder Program Message Message Function ENI #2 Configuration Rung Descriptions FunctionENI #2 Configuration Message Instructions Parameters Publication 1761-UM006A-EN-P February ENI #2 Configuration Message ConfigurationTab 10 L20 Controller’s Tags 11 File Mapping in RSLogix 1769-L20 Configure Rslinx13 Modify DF1 Parameters Using RSLInx 14 SLC 5/05 Controller Ladder Program 15 SLC 5/05 Rung 0 MSG General Tab 17 SLC 5/05 Rung 1 MSG General Tab 19 ControlLogix 5550 Controller Ladder Program 20 ControlLogix 5550 Rung 0 Message Configuration Tab 22 ControlLogix 5550 Rung 1 Message Configuration Tab Configuring an Ethernet Driver in Rslinx 25 Configure Ethernet Driver Using RSLinx Flashes for 4 seconds Power-Up SequenceOn solid for 2 seconds Description Color State Indicates Error Code Description of Error Condition Message Instruction Error CodesError Codes Generated by the ENI Reply not received before user-specified timeout Pccc Description Remote station problem due to downloadPccc Description Cannot execute command due to active IPBs Connection not completed before user-specified timeoutPccc Description Overflow histogram overflow Pccc Description Command cannot be executedPccc Description No access Pccc Description Data conversion error6Troubleshooting Publication 1761-UM006A-EN-P February MicroLogix Web Site Physical SpecificationsDescription ENI Specification Product Dimensions DimensionsMounting Dimensions Zero TCP/IP Parameters Function FormatOn the subnet mask Gateway Optional1Install the Bootp Server Using BootpEdit the Bootp Configuration File Ethernet TCP/IP Device Name IP Address Hardware AddressWindows Program Manager From See This platform ExecutableDOS-based Parameters if necessary WindowsParameter Description Running the DOS-Based UtilityRunning the Windows-Based Utility Glossary Node Pccc Programmable Controller Communications Commands RS-232 UTP Unshielded Twisted Pair Index Allocation of Ethernet connections 3-1Ethernet switchMTA TCP Index Publication 1761-UM006A-EN-P February Page Publication 1761-UM006A-EN-P February