B&B Electronics MES1A, MES1B manual Appendix D Serial Connections, Dte

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RS-232 Connections

Appendix D: Serial Connections


DB-9M	Signal	RS-232	DTE
Pin
2	Receive Data	RXD	In
3	Transmit Data	TXD	Out
5	Signal Ground	GND	---

Figure 37. RS-232 Connections for DB-9 Connector


Signal Name	Label	Direction	Terminal
Receive Data (+)	RDB(+)	In	1
Receive Data (-)	RDA(-)	In	2
Transmit Data (+)	TDB(+)	Out	3
Transmit Data (-)	TDA(-)	Out	4
Signal Ground	GND	---	5

Figure 38. MES1B Terminal Block Pin-out for RS-422/485 Four-Wire

Operation

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.com

B&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 Models MES1A, MES1B Modbus TCP Modbus Ascii / RTU ConvertersManual 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 About this Manual IntroductionSupport About Your MES1A/B Converter Features Hardware Overview Package ChecklistIndicators, Switches and Connectors Power LEDLink LED Reset SwitchActivity LED RS-422/485 Connector MES1B only RS-422/485 Switch MES1B onlyEthernet Port Connector DB-9M Serial Port Connector MES1A onlyRS-485 Two-Wire Mode RS-422/485 Four-Wire ModePower Connector Connecting the HardwareMES1A Connections MES1B Connections Hardware Overview QuickStart Getting StartedDiscover the MES1A/B on the Network Installing the Device Installer Using the Device Installer SoftwareSystem Requirements Discovering Devices Starting the Device InstallerGetting Device Details Device Installer Main WindowPress Enter to go into Setup Mode Connecting to the MES1A/BTelnet Configuration Tab with Settings Getting Started Telnet Configuration Tab Configuring the MES1A/BUnit ID to IP Address Table Navigating the Configuration MenuTo Reconfigure the MES1B, to Factory Settings Saving Configuration SettingsReconfiguring to Factory Settings To Reconfigure the MES1A to Factory SettingsIP Address Network/IP SettingsAuto-IP Default GatewayStatic IP Address Telnet Configuration Password Serial and Mode SettingsNetmask Attached Device ProtocolSerial Protocol MES1A Serial Interface Serial InterfaceMES1B Serial Interface Serial Parameters Modem/Configurable Pin SettingsAdvanced Modbus Protocol Settings Menu Advanced Modbus Protocol SettingsFor Auto Slave Address / Unit ID Source…255 = Yes Allow Modbus BroadcastsUse MB/TCP 00BH/00AH Exception Responses = NoCharacter Timeout Disable Modbus/TCP PipelineMessage Timeout Close Idle TCP Sockets After Unit ID to IP Address Lookup Table SettingsSerial TX Delay after RX Swap 4x/0H to Get 3x/1xAdd, Delete, Exit Select Function Redundant Entry Retries AfterModbus Address From/To Slave IP Address Managing Device Lists Using Other Device Installer FeaturesCreating a New Device List Device List Display Options Display Devices Using IconsSaving Device Lists Opening Device ListsDisplay the Hardware MAC Address Adding a Device ManuallyDisplay the Device Name Using Device Installer to Assign an IP Address Assigning an IP Address using Device InstallerUsing the Devices Details Tab Adding Info to the Device Details Tab Upgrading FirmwareSaving Setup Records Installing Pre-Saved Configuration FilesSave Setup Records Dialog Box Installing Setup RecordsLogging Search and Upgrade Data Options Window, Customization Tab Using Help Using PingUsing Other Device Installer Features Modbus ASCII/RTU Modbus BasicsModbus/TCP Hints and Tips Modbus Basics Swap 4x/0H to get 3x/1x Appendix a Default Configuration SettingsDefault Configuration Settings Manual CD-ROM disc Appendix B Product SpecificationsProduct Specifications Dimensional Diagram of the MES1A Appendix C Dimensional DiagramsDimensional Diagram of the MES1B DTE Appendix D Serial ConnectionsMES1B Terminal Block Pin-out for RS-485 Two-Wire Operation Appendix E Network Connections RJ-45 Pin Signal Wire ColorNetwork Connections Declaration of Conformity