B&B Electronics MES1B, MES1A manual Modbus Basics

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Modbus Basics

Manual Documentation Number: MES1A/MES1B-2106m

PN7138-rev001

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.comB&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com

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Contents Modbus TCP Modbus Ascii / RTU Converters Models MES1A, MES1BManual Documentation Number MES1A/MES1B-2106m International Headquarters Page Manual Documentation Number MES1A/MES1B-2106m PN7138-rev001 Page Table of Contents Configuring the MES1A/B Modbus Basics Manual Documentation Number MES1A/MES1B-2106m Introduction About this ManualSupport About Your MES1A/B Converter Features Package Checklist Indicators, Switches and ConnectorsPower LED Hardware OverviewReset Switch Link LEDActivity LED RS-422/485 Switch MES1B only Ethernet Port ConnectorDB-9M Serial Port Connector MES1A only RS-422/485 Connector MES1B onlyRS-422/485 Four-Wire Mode RS-485 Two-Wire ModeConnecting the Hardware Power ConnectorMES1A Connections MES1B Connections Hardware Overview Getting Started QuickStartDiscover the MES1A/B on the Network Using the Device Installer Software Installing the Device InstallerSystem Requirements Starting the Device Installer Discovering DevicesDevice Installer Main Window Getting Device DetailsConnecting to the MES1A/B Press Enter to go into Setup ModeTelnet Configuration Tab with Settings Getting Started Configuring the MES1A/B Telnet Configuration TabNavigating the Configuration Menu Unit ID to IP Address TableSaving Configuration Settings Reconfiguring to Factory SettingsTo Reconfigure the MES1A to Factory Settings To Reconfigure the MES1B, to Factory SettingsNetwork/IP Settings IP AddressDefault Gateway Auto-IPStatic IP Address Serial and Mode Settings Telnet Configuration PasswordNetmask Protocol Attached DeviceSerial Protocol Serial Interface MES1A Serial InterfaceMES1B Serial Interface Modem/Configurable Pin Settings Serial ParametersAdvanced Modbus Protocol Settings Advanced Modbus Protocol Settings MenuSlave Address / Unit ID Source For Auto…255 Allow Modbus Broadcasts Use MB/TCP 00BH/00AH Exception Responses= No = YesDisable Modbus/TCP Pipeline Character TimeoutMessage Timeout Unit ID to IP Address Lookup Table Settings Serial TX Delay after RXSwap 4x/0H to Get 3x/1x Close Idle TCP Sockets AfterRedundant Entry Retries After Add, Delete, Exit Select FunctionModbus Address From/To Slave IP Address Using Other Device Installer Features Managing Device ListsCreating a New Device List Display Devices Using Icons Saving Device ListsOpening Device Lists Device List Display OptionsAdding a Device Manually Display the Hardware MAC AddressDisplay the Device Name Assigning an IP Address using Device Installer Using Device Installer to Assign an IP AddressUsing the Devices Details Tab Upgrading Firmware Adding Info to the Device Details TabInstalling Pre-Saved Configuration Files Saving Setup RecordsInstalling Setup Records Save Setup Records Dialog BoxLogging Search and Upgrade Data Options Window, Customization Tab Using Ping Using HelpUsing Other Device Installer Features Modbus Basics Modbus ASCII/RTUModbus/TCP Hints and Tips Modbus Basics Appendix a Default Configuration Settings Swap 4x/0H to get 3x/1xDefault Configuration Settings Appendix B Product Specifications Manual CD-ROM discProduct Specifications Appendix C Dimensional Diagrams Dimensional Diagram of the MES1ADimensional Diagram of the MES1B Appendix D Serial Connections DTEMES1B Terminal Block Pin-out for RS-485 Two-Wire Operation RJ-45 Pin Signal Wire Color Appendix E Network ConnectionsNetwork Connections Declaration of Conformity