B&B Electronics 232DRIO manual Isolated Mechanical Input Relay Outputs

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232DRIO

EXTERNAL CIRCUIT

Opto Isolated Input

5-30 Vdc/Vac

Figure 4.4 - Isolated Mechanical Input

Relay Outputs

Relay outputs are used to turn external devices on or off. Relay outputs are CMOS/TTL compatible and can also operate between 0- 24Vdc and 0-115Vac. Outputs can be used to control solid state output modules, CMOS and TTL logic circuits. Caution must be taken not to exceed the power capability of the outputs. Refer to the output specifications in Chapter 1.

Setting an output line to a "1" forces the output HIGH, and setting an output line to a "0" forces the output LOW. Both relays are de- energized at factory default settings.

NOTE: The relay circuits are not UL® approved for 120 Vac @ 10A or 30 Vdc @ 8A (resistive) maximum line service in regards to contact ratings. However, the printed circuit traces were followed using UL standards (UL #1950) for minimum width and separation. For the previous reason and safety concerns, we recommend a maximum continuous rating of 8 amperes. In conclusion, the voltage should still comply with the rated relay contact voltage of 120 Vac/30 Vdc max. but recommended @ 8A or lower.

It is the customer’s responsibility to determine the ultimate safety and acceptability of our products. Failure to stay within these specifications could result in damage to the unit and will void warranty.

232DRIO-0308 Manual

17

B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350

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

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Contents Internet Model 232DRIOElectronics Mfg. Co. Inc Designed and Manufactured Ottawa, IllinoisPage Table of Contents Appendix B Table of Contents 232DRIO-0308 ManualIntroduction 232DRIO FeaturesNon-polarized, Optically Isolated Input 232DRIO-0308 Manual 232DRIO SpecificationsEnvironment Power SupplyRelay Outputs CommunicationsGround ConnectionsOpto-isolated Input black terminal blocks Relay Outputs blue terminal blocks232DRIO Terminal Blocks RS232 Connector PinoutSerial Port Connections 232DRIO To DTE Connections Power Supply Connections232DRIO To DCE Connections 01FE #0RComp = not x and &HFF Syntax 232DRIO CommandsFunction Command Response Equivalent ValuesData Bytes Bit Assignments for I/O LinesRelay #2 Relay #1 Example Set Output Lines Data Byte Relays Binary DecimalInput #1 Relay #2 Relay #1 Shown in bold face Read I/O Lines CommandSet Output Lines Command 0R00000000…~… shown in bold face Argument … shown in bold face0S03 0S00000011Board Layout Opto-isolated Input Switch Input Isolated Mechanical Input Relay Outputs 232DRIO External Circuit Closing a COM Port SymbolDigital I/O Mask Values Opening a COM PortQuickBasic DEMO232.EXE and DEMO232.BAS Using the 232DRIO.LIB with QuickBasicRead I/O States Command Set Output States Command#include232DRIO.H void main ++ DEMO232.EXE and DEMO232.CPPQuickBasic Running Demonstration ProgramAppendix a Decimal to HEX to Ascii Conversion Table Appendix a 232DRIO-0308 ManualAppendix B Appendix B 232DRIO-0308 Manual Decimal to Hexadecimal Conversion
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