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EMERSON ABB Totalflow XRC 6490 Integration Guide Using Serial Modbus

Summary

Streamline your industrial data connections with this comprehensive guide on integrating an Emerson Smart Wireless Gateway with the ABB Totalflow XRC6490 via Modbus communication. Designed for process control engineers, the manual provides step-by-step instructions covering essential wiring schemes and intricate system configuration. Learn how to set necessary serial Modbus parameters on both the gateway and the PCCU software, manage register mapping, and ensure reliable data transfer within critical measurement applications.

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Page 1 Text Content

Technical Note 00840-1300-4420, Rev AA 06/14

Connecting an Emerson® Wireless Gateway to the ABB Totalflow XRC 6490 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1

Emerson Wireless HART® Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1 Assumptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4

1.1 Purpose

This document describes how to connect an Emerson Smart Wireless Gateway to a ABB Totalflow XRC6490using serial Modbus®.

1.2 Emerson Wireless HART® Gateway

ABB Totalflow XRC6490 with PCCU configuration software Emerson Smart Wireless Gateway1420/1410 A computer setup to connect to the Gateway

1.3 Assumptions

1. The user of this document has a fundamental understanding of the ABB Totalflow PCCU

software.

2. A comm port has been added in the Totalflow configuration for Modbus communications.

3. The user of this document has a fundamental understanding of the Gateway.

Page Summary Contents For EMERSON ABB Totalflow XRC 6490 Integration Guide Using Serial Modbus

Page 1 Technical Note 00840-1300-4420, Rev AA 06/14 Connecting an Emerson® Wireless Gateway to the ABB Totalflow XRC 6490 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 2 Emerson Wireless HART Gateway Technical Note 06/14 00840-1300-4420, Rev AA 1.4 Wiring 1. Wire the modbus terminals. Note The Smart Wireless Gateway 1420 wiring diagram is shown below. Figure 1-1. Stan...
Page 3 Technical Note Emerson Wireless HART Gateway 00840-1300-4420, Rev AA 06/14 2. Connect the modbus “A” wire to pin 6 and “B” wire to pin 8. In this case we are connecting to Comm Port 2. Figure 1-2. Con...
Page 4 Emerson Wireless HART Gateway Technical Note 06/14 00840-1300-4420, Rev AA 1.5 Configuration 1. Configure the 1420 for serial modbus communication. This can be done using the web browser. In this case...
Page 5 Technical Note Emerson Wireless HART Gateway 00840-1300-4420, Rev AA 06/14 2. Configure the Totalflow by starting the PCCU software. Click the Entry button to connect to the Totalflow XRC 6490 hardwar...
Page 6 Emerson Wireless HART Gateway Technical Note 06/14 00840-1300-4420, Rev AA 6. In this window, setup the Data Bits, Parity and Stop Bits to match the configuration of the 5300. Note It was found during...
Page 7 Technical Note Emerson Wireless HART Gateway 00840-1300-4420, Rev AA 06/14 8. Expand the “R” folder and then navigate to the Modbus comm Port. 9. Go to Operate, right click, and select File Utilities,...
Page 8 Emerson Wireless HART Gateway Technical Note 06/14 00840-1300-4420, Rev AA Figure 1-10. Modbus register mapping 11. In this block we are requesting Modbus registers mapped to Statuses which are intege...
Page 9 Technical Note Emerson Wireless HART Gateway 00840-1300-4420, Rev AA 06/14 Figure 1-12. Modbus registers mapped to statuses (cont.) 17. Click the Save Station Files button on the bottom of the screen....
Page 10 Emerson Wireless HART Gateway Technical Note 06/14 00840-1300-4420, Rev AA Figure 1-14. Save Options 20. When the Upload is completed you will need to copy this to the “S” drive. Either you can select...
Page 11 Technical Note Emerson Wireless HART Gateway 00840-1300-4420, Rev AA 06/14 Figure 1-16. Return to the “Entry” Mode to view the Values 24. Select the name of the tab you used in the above step. 25. Cli...
Page 12 Emerson Wireless HART Gateway Technical Note 06/14 00840-1300-4420, Rev AA Figure 1-19. Integer Values Emerson Wireless HART Gateway
Page 13 Technical Note Emerson Wireless HART Gateway 00840-1300-4420, Rev AA 06/14 13Emerson Wireless HART Gateway
Page 14 Technical Note 00840-1300-4420, Rev AA Rosemount and the Rosemount logotype are registered trademarks of Rosemount Inc. Plant Web is a registered trademark of one of the Emerson Process Management gro...

Manual Details

Brand Integration
Pages 14
File Size 852.53 KB
Published June 20, 2026
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Frequently Asked Questions

How should I wire the modbus connections?

Connect the 'A' wire to pin 6 and the 'B' wire to pin 8 for Comm Port 2.

What communication settings are required for serial Modbus setup?

Use a Baud Rate of 9600, Start Bit = 1, Data Bit = 8, Parity = None, Stop Bit = 1.

How does the Register Format change based on floating point usage?

For non-swapped format, select '16 BIT Modicon'; for swapped format, choose '16 Bit Word Swapped'.

What should be set for Xmit Key Delay and Unkey Delay?

Set these values no higher than 10 to ensure the Total Flow reads modbus responses.

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