B&B Electronics 232DRIO manual Connections, Opto-isolated Input black terminal blocks, Ground

Page 8

Chapter 2 - Connections

Do not make any connections to the 232DRIO until you have read this chapter. Remember to power down the unit and any other connected devices before making any kinds of connections. Also be sure that the wires connected to the terminal blocks will support the voltage and current requirements of your external devices.

This chapter will cover the connections for the 232DRIO. There are four sets of connections: opto-isolated input (optional), relay outputs, serial port, and power supply.

I/O Connections

Connections to the I/O lines are made through the internal block terminals. These should clearly be labeled on the board. Refer to Table 2.1. See Chapter 5 for I/O interfacing examples.

Opto-isolated Input (black terminal blocks)

The non-polarized, opto-isolated input line is CMOS/TTL compatible and can handle voltages from 0Vdc/Vac to +30Vdc/Vac. Refer to the Specification for a complete detail.

Relay Outputs (blue terminal blocks)

The relay output lines have a maximum operating voltage of +250Vac/+125Vdc and are CMOS/TTL compatible. Refer to the Specification for a complete detail. Both relays are de-energized at factory default settings.

Ground

Connect the ground correspondingly as marked. Do not interchange the grounds for input and power. Otherwise, the input will not be optically isolated. The input is non-polarized so the input ground could be connected to either one of the black terminal while the power ground must be connected as marked on the blue terminal.

6

232DRIO-0308 Manual

B&B Electronics --

PO Box 1040 -- Ottawa, IL 61350

PH (815) 433-5100 -- FAX (815) 433-5104

Page 7 Page 9
Image 8
Page 7 Page 9
Contents Model 232DRIO Electronics Mfg. Co. IncDesigned and Manufactured Ottawa, Illinois InternetPage Table of Contents Table of Contents 232DRIO-0308 Manual Appendix B232DRIO Features Introduction232DRIO Specifications Non-polarized, Optically Isolated Input 232DRIO-0308 ManualPower Supply Relay OutputsCommunications EnvironmentConnections Opto-isolated Input black terminal blocksRelay Outputs blue terminal blocks GroundSerial Port Connections RS232 Connector Pinout232DRIO Terminal Blocks 232DRIO To DCE Connections Power Supply Connections232DRIO To DTE Connections Comp = not x and &HFF #0R01FE 232DRIO Commands Function Command ResponseEquivalent Values SyntaxBit Assignments for I/O Lines Data BytesInput #1 Relay #2 Relay #1 Example Set Output Lines Data Byte Relays Binary DecimalRelay #2 Relay #1 Read I/O Lines Command Set Output Lines Command0R00000000 Shown in bold faceArgument … shown in bold face 0S030S00000011 …~… shown in bold faceBoard Layout Opto-isolated Input Switch Input Isolated Mechanical Input Relay Outputs 232DRIO External Circuit Symbol Digital I/O Mask ValuesOpening a COM Port Closing a COM PortUsing the 232DRIO.LIB with QuickBasic Read I/O States CommandSet Output States Command QuickBasic DEMO232.EXE and DEMO232.BAS++ DEMO232.EXE and DEMO232.CPP #include232DRIO.H void mainRunning Demonstration Program QuickBasicAppendix a Appendix a 232DRIO-0308 Manual Decimal to HEX to Ascii Conversion TableAppendix B Decimal to Hexadecimal Conversion Appendix B 232DRIO-0308 Manual
Top Page Image Contents