B&B Electronics MESR9xx manual Pdu

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10. GlossaryVlinx MESR9xx Modbus Gateway

Term

Definition

 

 

Parity Bit

A binary digit that is added to ensure that the number of bits with value of

one in a given set of bits is always even or odd. It may also be a Mark (1), or

 

a Space (0).

PDU

Protocol Data Unit

 

 

RS-232

Interface between Data Terminal Equipment and Data Circuit-Terminating

 

Equipment Employing Serial Binary Data Interchange

RS-422

Electrical Characteristics of Generators and Receivers for Use in Balanced

 

Digital Point to Point Systems

RS-485

Electrical Characteristics of Generators and Receivers for Use in Balanced

 

Digital Multipoint Systems

RTU

Remote Terminal Unit

 

 

Stop Bit

Number of bit times after a character is transmitted before the next character

 

can start transmission.

TCP

Transmission Control Protocol

 

 

Unit ID

Unit Identifier. This is the same as the slaves address.

 

 

VESR

B&B’s Second Generation Ethernet Gateway Line

 

 

Vlinx

B&B’s family name for the Gateway line

 

 

Page 57

Manual Documentation Number MESR9xx-4508m

 

www.bb-elec.com/

 

www.bb-europe.com/

Image 61 Contents
Vlinx MESR9xx Modbus Gateways Vlinx MESR9xx Table of Contents Upgrading the Modbus Gateway Firmware About MESR9xx Modbus Gateways IntroductionMESR9xx Modbus Gateway Model Numbering List of MESR9xx Modbus Gateway Models Model Number FeaturesMESR901-SC MESR9xx Modbus Gateway FeaturesVlinx Manager Configuration Software MESR9xx Modbus Gateway Hardware Package ChecklistMESR9xx Modbus Gateway Enclosures and Mounting E1/E2 Ethernet Link LED LED IndicatorsReady LED Serial Port LEDsEthernet Connector Mode SwitchSerial Port Connectors Fiberoptic ConnectorsMounting Hardware Power ConnectorHardware Vlinx MESR9xx Modbus Gateway Connecting the Power Supply Modbus Gateway Setup and ConnectionsConnecting MESR9xx Modbus Gateways to Modbus networks Connecting the MESR9x1-x Connecting the MESR9x2D-x Connecting the MESR9x2T-xMESR9xx Modbus Gateway Configuration Connections Connecting MESR9xx Modbus Gateways to a NetworkNetwork Connection 10BaseT/100BaseTX Fiberoptic ConnectionTo open Vlinx Manager Vlinx Manager Login Screen MESR9xx Modbus Gateway Operational Connections Using MESR9xx Modbus Gateways in Direct IP ModeDirect IP Connection Initiating a Hardware Reset on the Modbus GatewayReloading Factory Defaults Configuration Files Character TimeoutDescription, Modbus Gateway Properties AttachedData/Parity/Stop Default GatewayHardware Version Firmware VersionID Routing IP AddressMAC Address Link StatusModbus Priority Modbus Serial RetriesModbus Ascii Modbus Message TimeoutModbus Message Buffering Modbus RTU MessageModbus TCP Message Network ModeModel Network ProtocolsPort# ID Remap PasswordSerial Interface Modes Gateway Serial Port Number Modbus Gateway NameSubnet Mask TCP Transmission Control Protocol Upgrading the Modbus Gateway Firmware Firmware Upgrade Dialog BoxUploading the Firmware to the Modbus Gateway Downloading Firmware FilesWhen the upgrade process is complete, click Close Testing a Modbus Gateway Connection DiagnosticsDiagnostics Vlinx MESR9xx Modbus Gateway Application Examples From Serial Master to Modbus Gateway, Slave IDs ConfigurableKeep Serial Master, Add Ethernet Masters From Serial Masters To Ethernet Master, Slave IDs FixedTime Critical Control, Direct and Remotely Monitored Modbus RTU, ASCII, and TCP IntegrationModbus ASCII/RTU Basics Modbus HelpHints and Tips Appendices Setting Default Value Gateway Name Appendix a Default Gateway SettingsPassword Password field is blank from factory EnabledAppendix B Product Specifications General Specifications Switches Controls, Indicators and Connector SpecificationsIndicators ConnectorsSerial Interface Specifications Network Specifications Appendix C Dimensional Diagrams Appendices Vlinx MESR9xx Modbus Gateway Appendices Vlinx MESR9xx Modbus Gateway Appendices Vlinx MESR9xx Modbus Gateway MESR901-x Serial Port Pinouts Appendix D Connector PinoutsDB-9M Pin Terminal MESR902D-x Serial Port Pinouts MESR902T-x Serial Port Pinouts RJ-45 Pin Standard Ethernet Cable RJ-45 Pin-outTerm Definition GlossaryPDU