Campbell Scientific SDM-INT8 8-Channel Interval Timer - Manual (Page 5)

SDM-INT8 Table of Contents
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1. Overview.......................................................................2
2. Specifications ..............................................................3
3. Connections .................................................................4
4. Power Supply Considerations ....................................5
5. Programming the Datalogger .....................................5
5.1 CRBasic Programming .............................................................................6
5.1.1 Instruction SDMINT8.....................................................................6
5.1.2 SDMSpeed Instruction....................................................................8
5.2 Edlog Programming (Instruction “101”) ..................................................9
6. Programming Details.................................................10
6.1 Parameter 1 - Address.............................................................................10
6.2 Input Configuration ................................................................................11
6.3 Parameters 4 and 5 - Functions...............................................................11
6.4 Output Option .........................................................................................13
6.4.1 Rules for Averaging......................................................................13
6.4.2 Option 0: Execution Interval Averaging......................................16
6.4.3 Option 32768 or 0--: Continuous Averaging ................................16
6.4.4 Option nnnn or XXXX: Specified Averaging Interval ................17
6.4.5 Option –nnnn or XXXX--: Capture All Events Until nnnn
or XXXX Edges On Channel 1.................................................17
6.4.5.1 Option –nnnn.......................................................................17
6.4.5.2 Option XXXX-- ..................................................................17
6.4.6 Option 9999--: Test Memory .......................................................18
6.5 Dest, Input Location, Multiplier, and Offset ..........................................19
6.6 Edlog Output Format ..............................................................................19
7. Program Examples ....................................................20
7.1 CRBasic Program Example ....................................................................20
7.2 Edlog Program Examples .......................................................................21
7.2.1 Cold Crank Engine Test - Capture All Events..............................21
7.2.2 Wind Speed Measurements - Execution Interval Averaging........23
7.2.3 Brake Pressure and Wheel Speed Test - Capture All Events
and P23 Burst Mode..................................................................24
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