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3 slc 5/04 via 1761-net-enet example – Yokogawa Standalone MW100 User Manual

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5.3 SLC 5/04 via 1761-NET-ENI

In this example, the system consists of a 1747-L541C (5/04 CPU, 16K Mem, OS401 Series C FRN 3-8) processor and a

1747-NT4 Thermocouple Input Module residing in slot #1. The SLC 5/04 is connected to EtherNet IP via a 1761-NET-ENI

(Ver. D, Rev. A, Firmware 3.21) Network Interface connected to Channel 0. The 1761-NET-ENI’s IP address is

192.168.1.125. The MW100’s IP address is 192.168.001.101. The 1747

-NT4 module’s four input channels are sent to the

MW100’s Communication Channels C01 thru C04. The 1747

-NT4’s channels are configured for ―Engineering Units‖ which

will result in an integer value with an implied decimal point (i.e. 66.8 = 668). The MW100’s Measurement Channels 001

thru 010 are being read and stored in 10 words starting with F8:0.

Data File ―N9:0‖ has been created for I/O Configuration Data.

When using processors that do not have a built in Ethernet port, communications to an EtherNet IP device is

accomplished by sending a message via DF1 serial protocol to the 1761-NET-ENI, which in turn re-routes the message in

a CIP format.


















The 1761-NET-ENI Network Inteface is configured via Rockwell’s ―ENI Configuration Utility,‖ available from Rockwell’s

website. The same cable that is used to connect the 1761-NET-ENI to the SLC 5/04 can be used to connect the 1761-

NET-ENI to a PC’s 9-pin serial port.

1761-NET-ENI Configuration

Under the ―ENI IP Addr‖ tab, select the ENI Series (D), set the 232 Baud Rate (38400), set the 1761

-NET-ENI’s IP

address (192.168.001.125) and subnet mask (255.255.255.0). Uncheck ―Obtain via BootP‖ as this application utilizes a

fixed IP address. Then click on the ―Message Routing‖ tab.

SLC 5/04

MW100

1761-NET-ENI

To plant wide network….

Hub or Switch

Typical 1761-NET-ENI connection example.

1761-CBL-PM02

Cable

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