B&B Electronics manual Figure C.4 Solid State Input, 485SDD16-1005 Manual Appendix C

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Figure C.4 - Solid State Input

Figure C.2 - DBM16 Outline Drawing

Inputs

Digital inputs are used to sense "HIGH" and "LOW" states based on voltage levels. This is accomplished via switch closures, contact closures or a solid state digital signals. Each DBM16 input is pulled up through a resistor and will be read as a logic "1" (HIGH) by the SDD16 module. When an input on the DBM16 is grounded (below +1.5Vdc), a logic "0" (LOW) will be read by the SDD16 module. Figures C.3 - C.6 show examples of some typical input interfaces.

Figure C.5 - Isolated Mechanical Input

Figure C.3 - Switch Input

Figure C.6 - Isolated Solid State Input

485SDD16-1005 Manual	Appendix C	C-5	C-6	Appendix C	485SDD16-1005 Manual
B&B Electronics -- 707 Dayton Road -- Ottawa, IL 61350				B&B Electronics -- 707 Dayton Road -- Ottawa, IL 61350
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Contents Electronics Mfg. Co. Inc Designed and Manufactured Ottawa, IllinoisInternet Sales@bb-elec.com Support@bb-elec.comTable of Contents 485SDD16 Features 485SDD16 SpecificationsIntroduction Power Supply CommunicationsSize Connections Digital I/O Connections485SDD16 I/O Port Pinout Serial Port ConnectionsExample of Multi-Node Network Commands 485SDD16 CommandsEquivalent Values SyntaxRead I/O Lines Command Set Output Lines CommandBit Assignments for I/O Lines Set Module Address Command Set Turn-around Delay CommandDefine I/O Lines Command Command AddrSC ArgumentSet Power-up States Command Read Configuration CommandRead Configuration command returns the modules I/O Command AddrRC Argument None ResponseInterfacing Digital InputsIsolated Solid State Input Digital OutputsSoftware Programming TechniquesDigital I/O Mask Values Set Output States Command MSdefs = MSdefs and mask LSdefs = LSdefs and maskMSpups = MSpups and mask LSpups = LSpups and mask MSstates = MSstates or mask LSstates = LSstates or maskDefine I/O Lines Command Set Power-up States CommandCmnd$ = ! + CHR$Maddr + SO + CHR$MSstates + CHR$LSstates Maddr =Set Module Address Command MSpups = MSpups and NOTmask LSpups = LSpups and NOTmaskCmnd$ = ! + CHR$Maddr + SS + CHR$MSpups + CHR$LSpups LSpups = LSpups or &H20Demonstration Program Running Demonstration ProgramDecimal 485SDD16-1005 Manual Appendix a119 120 121 122 123 124 125 126 127 485SDD16-1005 Manual Appendix aAppendix B 485SDD16-1005 Manual Appendix BDecimal to Hexadecimal Conversion 2523rd Hex digit 240 4th Hex digit Decimal equals 10FC hexadecimalAppendix C Table C.1 DTB25 Connections Table C.2 DBM16 I/O ConnectionsDBM16 Interfacing Figure C.4 Solid State Input 485SDD16-1005 Manual Appendix CDBM16 Specifications Lines Power Supply Input VoltageTotal Connections SizeFigure C.10 DBM16 Schematic #addrRD Msb~ I/O msbI/O lsb ~ I/O lsb00FF01FE Comp = not x and &HFFTable D-1 Extended Commands 485SDD16-1005 Manual Appendix D