FT2A

Fox Thermal Instruments FT2A Operating Manual

Fox Thermal Instruments, Inc.

THERMAL MASS FLOW METER & TEMPERATURE TRANSMITTER

Model FT2A - Anybus:

Proﬁbus/DeviceNet/Modbus TCP Ethernet

www.foxthermalinstruments.com | 399 Reservation Road Marina, CA. 93933

105436

Rev. A

Anybus

Notice

This publication must be read in its entirety before performing any operation. Failure

to understand and follow these instructions could result in serious personal injury

and/or damage to the equipment. Should this equipment require repair or adjustment

beyond the procedures given herein, contact the factory at:

FOX THERMAL INSTRUMENTS, INC.

399 RESERVATION ROAD

MARINA, CA 93933

TELEPHONE: 831-384-4300

FAX: 831-337-5787

EMAIL: SERVICE@FOXTHERMALINSTRUMENTS.COM

Download Technical Data Sheets from our website:

www.foxthermalinstruments.com

Fox Thermal Instruments believes that the information provided herein is accurate

however be advised that the information contained herein is NOT a guarantee

FOX THERMAL INSTRUMENTS

for satisfactory results. Specifically, this information is neither a warranty nor

guarantee, expressed or implied, regarding performance; merchantability; fitness;

or any other matter with respect to the products; nor recommendation for the use

of the product/process information in conflict with any patent. Please note that Fox

Thermal Instruments, Inc. reserves the right to change and/or improve the product

design and specification without notice.

Fox FT2A Manuals:

• Model FT2A Instruction Manual

• Fox FT2A View™ Instruction Manual

• Fox FT2A Modbus and BACnet MS/TP Manual

Table Of Contents

1. Introduction Page 4

a. Scope Page 4 b. Description Page 4 c. Related Documents Page 4

2. Data Organization Page 5

a. FT2A Registers Page 5 b. Status Bit Deﬁnitions Page 6 c. Control Page 6

3. Wiring and Conﬁguration for Proﬁbus/Devicenet/Ethernet Page 7

a. Proﬁbus Page 7 b. DeviceNet Page 9 c. Ethernet Page 11

Anybus

TABLE OF CONTENTS

4. LED Indicators Page 14

5. Programming Page 15

a. Anybus Chip Programming Page 15

6. Appendices Page 16

a. Attachment A Page 16 b. Attachment B Page 19

7. Glossary of Terms and Abbreviations Page 22

8. Index Page 23

Anybus

Introduction

Scope Introduction

INTRODUCTION

Scope

Thank you for purchasing the Model FT2A Thermal Gas Mass Flow meter and Temperature Transmitter from Fox Thermal Instruments. The Model FT2A is one of the most technically advanced flow meters in the world. Extensive engineering effort has been invested to deliver advanced features, accurate measurement performance and outstanding reliability.

This document describes how to connect and use the Profibus/DeviceNet/ Modbus TCP Ethernet for the Model FT2A.

Description

The Model FT2A uses a pre-programmed Anybus-IC from HMS-Network to interface to Profibus, DeviceNet or Modbus TCP Ethernet.

Other related documents:

• Fox FT2A Instruction Manual

• Fox FT2A View™ Manual

• Fox FT2A Modbus/BACnet MS/TP Manual

www.foxthermalinstruments.com

Data Organization

Anybus

Data Organization

Byte Modbus

Address

30001 01 02

30002 03

30003 05 06

30004 07

30005 09 10

30006 11

30007 13 14

30008 15

30009 17 18

30010 19

202130011 Status (low register, MSB)

222330012 Flow *100 (low register, MSB)

242530013 Total *100 (low register, MSB)

Data Organization

Data from the FT2A is updated into the Anybus IC every 300 ms. Data is organized as a set of two 16 bit registers (32 bits) for data and one 16 bit register for status. Table 2.1 defines the FT2A registers.

Table 2.1: FT2A Registers

Data Type Scaling Comment

Flow in Eng units (low register, MSB) Flow in Eng units (low register, LSB) Flow in Eng units (high register, MSB) Flow in Eng units (high register, LSB)

Total (low register, MSB) Total (low register, LSB) Total (high register, MSB) Total (high register, LSB)

Temperature (low register, MSB) Temperature (low register, LSB) Temperature (high register, MSB) Temperature (high register, LSB)

Elapsed time (low register, MSB) Elapsed time (low register, LSB) Elapsed time (high register, MSB) Elapsed time (high register, LSB)

Velocity (low register, MSB) Velocity (low register, LSB) Velocity (high register, MSB) Velocity (high register, LSB)

Status (low register, LSB)

Flow *100 (low register, LSB)

Total *100 (low register, LSB)

No Mass flow in selected units

No Total in selected units

X 10 Temperature in selected units X 10 (Times

ten) High register in not used

X 10 Elapsed time in hours X 10 (Times ten)

No Velocity in nm/hr

No Status/Alarm

X 100 Flow X 100

X 100 Total X 100

DATA ORGANIZATION

Note: Items 22/23 and 24/25 are only used for low flow and total to obtain more precision. Velocity can be used to obtain flow rate in engineering units using pipe area and unit conversion factor.

Anybus

Data Organization

Status Bits

Table 2.2: Status Bits Definitions

Bit Definition Comment 0 Power up indication

1 Flow rate reached high limit threshold

2 Flow rate reached low limit threshold

3 Temperature reached high limit threshold

4 Temperature reached low limit threshold

5 Sensor reading is out of range

6 Velocity flow rate outside of calibration table

7 Incorrect Settings

8 In simulation mode

9 Frequency output is out of range

10 Analog 4-20 mA for flow is out of range

11 Analog 4-20 mA for temperature is out of range

12 Anybus error

13 Bridge Shut Down

DATA ORGANIZATION

14 EEPROM CRC error

15 Totalizer Error Detected

Reset when out of the power up sequence Set limit to zero to disable Set limit to zero to disable Set limit to zero to disable Set limit to zero to disable Check sensor wiring Check sensor wiring Check settings Set simulation value to 0 to disable Check frequency output settings Check analog output settings Check analog output settings Check wiring from RS485 to Anybus IC Check sensor wiring Check parameters and reset CRC Reset the total

Control

One control register is used to reset the total and elapsed time. Data for that register must be set to 0x02 to reset the total. Only a transition from a 0 to 2 will clear the total. Keeping that bit set will not continuously clear the total. This register needs to be cleared after the reset operation.

ETHERNET

RESET TOTAL

SWITCH

USB

COMMUNICATION

Wiring: Proﬁbus

Anybus

Probus Wiring

Profibus Wiring from Master

Wiring connections are made to terminal block TS3 for Profibus communication. The following lists the wiring connections.

Display board Connector TS3:

FB1 A-Line

•

• FB2 B-Line

• FB3 RTS

• FB4 NC (NC = No Connection)

• FB5 GND BUS

• FB6 +5 V BUS

• FBPE PE

• SHIELD NC

Fig. 3.1: Profibus Wiring and Configuration

Inside Display/Cover

Profibus Master

PROFIBUS

TS3

1 2 3 4 5 6 7 8

OPTIONAL

COMMUNICATION

(DEVICENET

PROFIBUS)

FB1 - A-Line

FB2 - B-Line

FB3 - RTS

FB4 - No Connection

FB5 - GND Bus

FB6 - +5 V Bus

FBPE - PE

SHLD - SHLD

Anybus

Conﬁguration: Proﬁbus

Model FT2A

Probus Conguration

PROFIBUS

Baud Rate - Profibus

The Module supports all standard baud-rates from 9600 bps to 12 Mbps, according to the Profibus specification. The Anybus-IC PDP supports automatic baud rate detection, which means that the actual baud rate is only configured in the Profibus Master.

Configuration File - Profibus

A GSD configuration file is needed by the master and is available from the HMS-Networks Website under the AnyBus-IC/Profibus selection. An example of the file is included for reference as Attachment A.

http://www.anybus.com/support/support. asp?PID=88&ProductType=AnyBus-IC

Profibus Functions

The following functions are not supported with the Standard GSD-file: User Parameter Data (Set_Prm). Extended Diagnostic Data (Slave_Diag).

ID Number - Profibus

The Standard AnyBus-IC Profibus ID number is 1810h. This ID number is related to the GSD file. If the AnyBus IC PDP is to be customized with other functions or names, a new ID-number must be used (ordered from the Profibus organization).

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Fox Thermal Instruments FT2A Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual