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Sierra Foundation Fieldbus 600 Series, Instruction Manual, Page: 14 / 18

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Sierra Foundation Fieldbus 600 Series Instruction Manual Download Page 14

14 

 

 

 

 
 

MODBUS_COM_SETUP 

The Modbus com settings are needed for the communication connection between the Modbus 
and the FF-BUS boards inside the meter. The Modbus Instrument Address 

must 

always be set 

to 1. The MODBUS _COM_SETUP 

must

 always set as shown below: 

 
BaudRate: 9600 Baud 
Stop_Bits: 1 
Parity: None 
CRC_ORDER: Normal 
 

 

 

 

 
 
 
 
 
 
 
 
 
 

Figure 7:  Screen Showing MODBUS_COM_SETUP 

 

Figure 6: TB Block Engineering Unit Setup 

Summary of Contents for Foundation Fieldbus 600 Series

Page 1: ...00 Series Foundation Fieldbus Instruction Manual Foundation Fieldbus Interface Specification for Models 640S 760S 780S and 780S UHP Thermal Mass Flow Meters Part Number IM600 700 FF Rev V1 1 December...

Page 2: ...d mass flow meters for oxygengas You are responsible for determining if this mass flow meter is appropriate for your oxygen application You are responsible for cleaning the mass flow meter tothe degre...

Page 3: ...ing Always remove main power before disassembling any part of the mass flow meter Caution Before making adjustments to the device verify the flow meter is not actively monitoring or reporting to any m...

Page 4: ...erra Customer Service Technical Assistance If you encounter a problem with your flow meter review the configuration information for each step of the installation operation and setup procedures Verify...

Page 5: ...Foundation Fieldbus Interface Configurations 9 AI AO Blocks 9 MODBUS_REGS_ 1 through 4 9 Chapter 5 Configuring the FF BUS Using NI FBUS Configurator 11 Getting Started Configuring FF Bus Using NI FBU...

Page 6: ...detailed information about Foundation Fieldbus go to http www fieldbus org The Sierra Instruments 600 700 Series mass flow meters can be ordered with the optional Foundation Fieldbus FF BUS Communicat...

Page 7: ...H1 network connections are labeled as FF 1 and FF 2 This is on the 2 position terminal block on the upper left shown below in Figure 1 These are not polarity dependent If you are using multiple shiel...

Page 8: ...he FF BUS interface For special configuration the user will only need a rudimentary knowledge of Modbus MODBUS_REG_SETUP_1 to 4 This is where AI1 2 3 4 and AO are configured as PV1 2 3 4 and Final Val...

Page 9: ...d open for customer configuration MODBUS_REGS_ 1 through 4 The Transducer Block also has four groups of Modbus registers that can be used for static setup inputs and outputs for variables such as fact...

Page 10: ...10 Serial number char 1 2 Serial number char 3 4 Serial number char 5 6 Serial number char 7 8 Serial number char 9 10 Decimal Point 4 26 1 Table 2 Factory Static MODBUS Registers...

Page 11: ...e available can be downloaded from our web site at http www sierrainstruments com userfiles file dd_files zip Getting Started Configuring FF Bus Using NI FBUS Configurator 1 Start the NI FBUS COM mana...

Page 12: ...ellow highlights disappear click Auto mode The configuration below was already done at the factory After completing the configuration you should be able to read the variables being returned from your...

Page 13: ...so they can be read by the FF BUS under PV_UNIT_1 2 3 4 and FINAL_VALUE_AO_UNIT See Figure 5 User Full Scale Factory Full Scale K Factor Accumulated Total Flow Current Flow Rate Figure 4 Screen Showi...

Page 14: ...he Modbus and the FF BUS boards inside the meter The Modbus Instrument Address must always be set to 1 The MODBUS _COM_SETUP must always set as shown below BaudRate 9600 Baud Stop_Bits 1 Parity None C...

Page 15: ...har 1 2 R Unsigned short integer 2 Char ASCII String 11 Flow unit char 3 4 R Unsigned short integer 2 Char ASCII String 12 Flow unit char 5 6 R Unsigned short integer 2 Char ASCII String 13 Totalizer...

Page 16: ...e of the unit as set by the manufacturer This would be the full scale flow available to FF BUS Use data type 16 bit short integer Byte order 1 0 This register would work in one of the 40 Modbus regist...

Page 17: ...lve characters long and always starts with SN or 53 4E 3A in Hex 26 Decimal Point Of The Flow Totalizer This register indicates the location of the decimal point in the actual flow totalizer Returned...

Page 18: ...ndation Fieldbus Board polls the Modbus board Every time a message is passed between the Foundation Fieldbus board and the Modbus board the FF_BUS to MODBUS_COM LED will blink yellow When the Foundati...

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