Rockwell Automation 1785 PLC-5 User Manual download pdf (Page 22)

Publication 1785-SG001B-EN-P - June 2006

20 Select Network Communications

Select a Network

Configure your system for information exchange between a range of devices

and computing platforms and operating systems.

If your application requires Use this network Select

• High-speed data transfer between information systems and/or a large

quantity of controllers

• Internet/intranet connection

• Program maintenance

EtherNet/IP • 1785-L20E controller

• 1785-L40E controller

• 1785-L80E controller

• Applicable PLC-5

controller with 1785-ENET

interface module

• High-speed transfer of time-critical data between controllers and

I/O devices

• Deterministic and repeatable data delivery

• Program maintenance

• Media redundancy or intrinsic safety options

ControlNet • 1785-L20C15

• 1785-L40C15

• 1785-L80C15

• Connections of low-level devices directly to plant floor controllers,

without the need to interface them through I/O modules

• More diagnostics for improved data collection and fault detection

• Less wiring and reduced start-up time than a traditional,

hard-wired system

DeviceNet PLC-5 controller with

1771-SDN scanner module

• Plant-wide and cell-level data sharing with program maintenance Data Highway Plus All PLC-5 controllers have at

least one built-in,

configurable Data Highway

Plus channel

• Connections between controllers and I/O adapters

• Distributed controllers so that each controller has its own I/O and

communicates with a supervisory controller

Remote I/O All PLC-5 controllers have at

least one built-in,

configurable remote I/O

channel

• Modems

• Messages that send and receive ASCII characters to or from devices

such as ASCII terminals, bar-code readers, message displays, weigh

scales, or printers

• Supervisory control and data acquisition (SCADA)

Serial Network All PLC-5 controllers have

one built-in serial port

configurable for RS-232,

RS-423, or RS-422A

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Rockwell Automation 1785 PLC-5 User Manual Page 22

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