Campbell-scientific SDM-SIO1 Serial Input/Output Module Manuel d'utilisateur télécharger pdf (Page 6)

Table of Contents

4.3

Example Datalogger Programs.......................................................... 20

4.3.1 Example Using RS-232 Mode.................................................... 20

4.3.2 Example Using RS-485 Mode.................................................... 21

5. Firmware Upgrades and Flash Signature Errors ...22

5.1 Upgrading the Firmware.................................................................... 22

5.2 Firmware Signature Errors ................................................................ 22

Appendix

Using the Handshaking Lines for General

Input/Output ..........................................................A-1

A.1 The Input Pin (Pin 8) ....................................................................... A-1

A.2 The Output Pin (Pin 9) .................................................................... A-2

Tables

3-1. SDM Address Settings ........................................................................ 6

3-2. SDM-SIO1 Connections (left to right as viewed from the front of

the unit)............................................................................................ 7

3-3. SDM-SIO1 Functional Description of the Connections ...................... 7

4-1. Communications Port Parameters RS-232 ........................................ 15

4-2. Communications Port Parameters RS-485 Full Duplex .................... 15

4-3. Communications Port Parameters RS-485 Half Duplex.................... 16

4-4. Communications Port Parameters RS-232 Receive Only Mode ....... 16

1 2 3 4 5 6 7 8 9 10 11 ... 33 34

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Campbell-scientific SDM-SIO1 Serial Input/Output Module Manuel d'utilisateur Page 6