B&B Electronics manual Introduction, 232SDD16 Features, 232SDD16-1005 Manual

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Chapter 1- Introduction

232SDD16 Features

The 232SDD16 is a general purpose control module that is connected to your computer’s RS-232 serial port. The 232SDD16 offers 16 discrete digital I/O lines. With these features, the module can be used to sense external ON/OFF conditions and to control a variety of devices.

The digital outputs are CMOS/TTL compatible. The digital inputs are CMOS/TTL compatible. The digital I/O lines are available through a DB-25S (female) connector.

The 232SDD16 connects to your computer’s RS-232 serial port through a DB-25S connector. The unit automatically detects baud rates from 1200 to 9600. A data format of 8 data bits, 1 stop bit and no parity is used.

Configuration parameters are stored in non-volatile memory. The configuration parameters consists of I/O definitions, and output power-up states.

The unit may be powered by setting RTS and DTR high on the serial port. If the 232SDD16 cannot be powered using the handshake lines, it may be powered with +12Vdc through the 2.5mm jack or through the DB-25 I/O connector.

NOTE: When using an external supply, the supply should be connected only to specifically labeled power inputs (power jack, terminal block, etc.). Connecting an external power supply to the handshake lines may damage the unit. Contact technical support for more information on connecting an external power supply to the handshake lines.

Figure 1.2 - Simplified Block Diagram

Packing List

Examine the shipping carton and contents for physical damage. The following items should be in the shipping carton:

1.232SDD16 unit

2.Software

3.This instruction manual

If any of these items are damaged or missing contact B&B Electronics immediately.

Figure 1.1 - 232SDD16 Module

232SDD16-1005 Manual

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2

232SDD16-1005 Manual

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

 

B&B Electronics -- PO Box 1040 --

Ottawa, IL 61350

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

 

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

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Contents Electronics Mfg. Co. Inc Designed and Manufactured Ottawa, IllinoisInternet Table of Contents 232SDD16 Features Introduction232SDD16-1005 Manual 232SDD16 Specifications CommunicationsSize Serial Port Connections ConnectionsDigital I/O Connections 232SDD16 I/O Port Pinout232SDD16 To DCE Connections RS-232 Connector PinoutPower Supply Connections 232SDD16 To DTE ConnectionsSyntax Commands232SDD16 Commands Equivalent ValuesRead I/O Lines Command Set Output Lines CommandBit Assignments for I/O Lines Define I/O Lines Command Set Power-up States CommandRead Configuration Command Bin. Example !0RC01010101010000010101000001000000 Digital Inputs InterfacingIsolated Solid State Input Software Programming TechniquesDigital I/O Mask Values MSstates = MSstates or mask LSstates = LSstates or mask Set Output States CommandMSdefs = MSdefs and mask LSdefs = LSdefs and mask MSpups = MSpups and mask LSpups = LSpups and maskMSdefs = MSdefs and NOTmask LSdefs = LSdefs and NOTmask Define I/O Lines CommandSet Power-up States Command MSdefs = MSdefs or mask LSdefs = LSdefs or maskRunning Demonstration Program Demonstration ProgramAppendix a Appendix B Decimal to Hexadecimal Conversion 232SDD16-1005 Manual Appendix C Figure C.1 DTB25 Outline DrawingTable C.2 DBM16 I/O Connections Table C.1 DTB25 ConnectionsDBM16 Interfacing Figure C.2 DBM16 Outline DrawingFigure C.6 Isolated Solid State Input DBM16 Specifications Lines InputsOutputs 232SDD16-1005 Manual Appendix C Comp = not x and &HFF #0RDMsb~ I/O msbI/O lsb ~ I/O lsb 00FF01FE232SDD16-1005 Manual Appendix D Table D-1 Extended Commands
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