Siemens SITRANS RD500 Benutzerhandbuch

Siemens Milltronics Process Instruments Inc.

1954 Technology Drive, P.O. Box 4225

Peterborough, Ontario

K9J 7B1 / Canada

Tel.: (705) 745-2431

Fax: (705) 741-0466

www.siemens.com/processautomation

AG111710

SITRANS RD500 and MultiRanger

Configuring SITRANS RD500 for connection to MultiRanger with MODBUS RTU

Objective: To connect the SITRANS RD500 to a Siemens MultiRanger via an RS-485 MODBUS connection.

Equipment: •RD500

•RD500 terminator

•MultiRanger

•Echomax Transducer

•RD500 manuals (Hardware and

Application)

•Hand programmer

•Computer

•Ethernet crossover cable

•Small terminal screw driver

•DC power supply

While every effort was made to verify the following information, no warranty of accuracy or usability is expressed or implied.

Overview

This application guide outlines the requirements and procedure to connect SITRANS RD500 and Siemens MultiRanger via an RS-

485 MODBUS connection.

The SITRANS RD500 is a remote data manager providing integrated web access, alarm event handling, and data capture for

instrumentation. Siemens MultiRanger is a versatile short- to medium-range ultrasonic single and multi-vessel level

monitor/controller. Process values from MultiRanger (such as level, volume, flow, totalization and pumping statistics) can be

logged in SITRANS RD500.

This application guide describes how to:

1. connect SITRANS RD500 to MultiRanger,

2. set up a data log in the RD500 to record information from the MultiRanger, and

3. configure SITRANS RD500 to read MODBUS registers from MultiRanger.

This application guide is an addition to the operating instructions. Please review the operating instructions for the RD500

application, and RD500 hardware to ensure you are familiar with configuring the SITRANS RD500.

APPLICATION GUIDE

SITRANS RD500 – MultiRanger Configuration AG111710 2 of 6

Connecting SITRANS RD500 to MultiRanger

1. Connect the RS485 port on the SITRANS RD500 to the MultiRanger RS485 port on TB3 using wiring and practices in

accordance with local electrical codes and requirements.

RD500 RS485 port MultiRanger TB3

TxA A (Terminal 35)

TxB B (Terminal 36)

COMM COM (Terminal 34)

2. Set up a connection between the PC and SITRANS RD500, referring to the SITRANS RD500 Application instruction

manual if necessary. Be sure that you have connected the PC to the RD500 using the Ethernet crossover cable. (Note:

This application guide assumes the SITRANS RD500 has default network settings.)

Setting Up a Data Log in RD500

1. Open a web browser and type http://192.168.2.100 into the browser address bar – use Login: admin Password: rd500

when prompted. Note: If a browser is already open, close it and restart to ensure it has the correct network settings.

2. The browser window will show the Overview page. Click on Configure and then Logs; you should see the screen below.

RD500 MultiRanger

SITRANS RD500 – MultiRanger Configuration AG111710 3 of 6

3. Click on the check box to enable the first Log entry. Enter a Name (e.g. LevelLog), set the desired Interval and then click

Apply. (Another log entry will appear below the first one.)

Configuring RD500 to Read MODBUS Registers from MultiRanger

1. Click on I/O > MODBUS; you should see the screen below.

2. In the RS485 Port section, set the Baud Rate to 19200, as shown above.

3. Click on the checkbox to enable a MODBUS device, and then enter a Name, e.g. MultiRanger 100. Set Node to 1 and

click on Apply. (Another MODBUS device entry will appear below the first one.)

•Be sure all serial communication settings are the same on both the RD500 and the MultiRanger (Baud, data

bits, stop bits and parity).

•Parameter P772 controls the baud rate of the MultiRanger. Be sure to select Port 2 for RS485.

4. Click on Configure to open the device node page for the MultiRanger, shown below.

SITRANS RD500 – MultiRanger Configuration AG111710 4 of 6

5. Enter the MODBUS start address for Reading (401010) with 1Element and Read Only access, and then click on Apply.

(Another Address entry will appear below the first one.)

6. Click on Configure for the first address entry. The following screen will appear.

7. Enter a Tag for the reading and set the remaining parameters as in the image above, and then click on Apply.

•Before DP – number of digits before the decimal place.

•After DP – number of digits after the decimal place.

•Be sure to select your previously enabled data log to begin logging the MultiRanger.

•If a value should be logged, but not displayed on the Overview screen, set View to No.

•Sign is register specific.

8. Click on Back to return to the list of tags.

9. Repeat steps 5 to 8 to add more registers for monitoring in SITRANS RD500.

SITRANS RD500 – MultiRanger Configuration AG111710 5 of 6

Note: The MODBUS register map is available in the MultiRanger 100/200 instruction manual (7ML19985FB06). The

table below has some commonly used registers.

Description Register Type Access Sign Before

After

Primary Variable 401010 Word Read Only Soft sign 5 2

Transducer Temperature 401030 Word Read Only Soft sign 3 0

mA Output 401110 Word Read/Write Unsigned 2 2

Pump Starts 401470 Word Read Only Unsigned 8 0

Pump Hours 401450 Long Read Only Unsigned 8 0

Discrete Inputs 401070 Bit Read Only Unsigned - -

10. Click on Overview and then Alarms. Enter alarm values for the monitored registers and click on Apply.

SITRANS RD500 – MultiRanger Configuration AG111710 6 of 6

11. Click on Overview to return to the main page and confirm that values are updating.

12. Click on Logs. Download a .csv file under the Data Log section and confirm the correct information is being logged.

There are many more features and options available in both the MultiRanger and SITRANS RD500. Please consult the user

manuals for more information or contact your local Siemens representative.

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