Rockwell-automation 1766-Lxxxx MicroLogix 1400 Programmable Controller User Manual download pdf (Page 369)

Rockwell Automation Publication 1766-UM001H-EN-P - May 2014 329

Connecting to Networks via Ethernet Interface Appendix G

MicroLogix 1400 and PC

Connections to the

Ethernet Network

The MicroLogix 1400 Ethernet connector conforms to ISO/IEC 8802-3 STD

802.3 and utilizes 10/100Base-T media. Connections are made directly from the

MicroLogix 1400 to an Ethernet hub or switch. The network setup is simple and

cost effective. Typical network topology is pictured below.

Ethernet Network Topology

Connecting an Ethernet switch on the Ethernet Network

The MicroLogix 1400 Ethernet port supports the following Ethernet settings:

• 10 Mbps half duplex or full duplex

• 100 Mbps half duplex or full duplex

Mode selection can be automatic, based on the IEEE 802.3 auto negotiation

protocol. In most cases, using the auto negotiation function results in proper

operation between a switch port and MicroLogix 1400 Ethernet port.

With RSLogix500/RSLogix Micro programming software version 8.10.00 or

later, you can manually set the communication rate and duplex mode of an

Ethernet port you have connected to the switch port. The settings of the

Ethernet port and the switch port must match.

Optimal Performance: MicroLogix 1400 to MicroLogix 1400 controller

Operation Words MSG per Second Words per Second

Single Typed Read 120 20

Single Typed Reads 20 20 400

Single Typed Reads 100 20 2,000

IMPORTANT

The MicroLogix 1400 controller contains a 10/100Base-T, RJ45

Ethernet connector which connects to standard Ethernet hubs or

switchs via 8-wire twisted-pair straight-through cable. To access other

Ethernet mediums, use 10/100Base-T media converters or Ethernet

hubs or switchs that can be connected together via fiber, thin-wire, or

thick-wire coaxial cables, or any other physical media commercially

available with Ethernet hubs or switchs.

to PC Ethernet Card

to MicroLogix 1400

Channel 1

RJ45 connectors on both ends

of cable (10/100Base-T)

Ethernet Hub or

Switch

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