Table Of Contents - Campbell SDM-SIO1A Instruction Manual

Table of Contents

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1. Introduction ................................................................ 1
2. Precautions ................................................................ 1
3. Initial Inspection ......................................................... 2
4. Overview ..................................................................... 2
5. Specifications ............................................................. 3
6. Installation .................................................................. 6
5.1 Supported Data Rates and Protocols .................................................... 3
5.2 Electrical Parameters ............................................................................ 4
5.2.1 SDM-SIO1A Current Consumption .............................................. 4
5.2.2 SDM-SIO1A Voltage Specifications ............................................ 5
5.2.3 Compliance ................................................................................... 5
5.3 Temperature and Humidity Ranges ..................................................... 5
5.4 Dimensions and Weight ....................................................................... 5
5.5 Datalogger Compatibility ..................................................................... 6
6.1 Mounting .............................................................................................. 7
6.2 Connection and Wiring ........................................................................ 8
6.2.1 Wiring Examples for Connecting the SDM-SIO1A ................... 10
6.2.1.1 RS-485/RS-422 Full-Duplex, One-to-One Connection
Example ........................................................................ 10
6.2.1.2 RS-485 Full-Duplex, Multi-drop Example ....................... 11
6.2.1.3 RS-485 Half-Duplex Wiring Example ............................. 12
6.2.1.4 RS-232 Wiring Example with Handshaking .................... 13
6.2.1.5 RS-232 Basic 3-Wire Example ........................................ 13
6.2.1.6 Connecting a 9-Way Socket to the SDM-SIO1A for
RS-232 Devices ............................................................ 14
6.3 Programming ...................................................................................... 15
6.3.1 CRBasic Instructions .................................................................. 15
6.3.1.1 SerialOpen() ..................................................................... 15
6.3.1.2 SerialClose() ..................................................................... 18
6.3.1.3 SerialIn() .......................................................................... 18
6.3.1.4 SerialOut() ........................................................................ 18
6.3.1.5 SerialInBlock .................................................................... 19
6.3.1.6 SerialOutBlock ................................................................. 19
6.3.1.7 SerialInChk ...................................................................... 19
6.3.1.8 SerialInRecord .................................................................. 19
6.3.1.9 SerialFlush ........................................................................ 19
6.3.2 Example Datalogger Programs ................................................... 19
6.3.2.1 Example using RS-232 Mode ........................................... 20
6.3.2.2 Example using RS-485 Mode ........................................... 21
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