SL MD-220 User's Manual
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Table of Contents
1. General..............................................................................................................................4
1.1 Introduction..................................................................................................................4
1.2 Principle of Operation..................................................................................................4
1.3 Technical Data ............................................................................................................6
2. Hardware Section.............................................................................................................7
2.1 Dimensional Drawing...................................................................................................7
2.2 Handling Precautions ..................................................................................................7
2.3 Installation ...................................................................................................................8
2.4 System Terminal..........................................................................................................8
2.4.1 Mechanical............................................................................................................8
2.4.2 Connections..........................................................................................................8
2.4.2.1 Power Supply Terminal......................................................................................8
2.4.2.2 Optocoupler Outputs..........................................................................................9
2.4.2.2.1 Internal Circuitry............................................................................................9
2.4.2.2.2 External Wiring.............................................................................................9
2.4.2.2.2.1Generating Voltage Output Signals ........................................................9
2.4.2.2.2.2Driving Loads........................................................................................10
2.5 RS-232 Interface .......................................................................................................11
2.5.1 Connector ...........................................................................................................11
2.5.2 Wiring..................................................................................................................11
2.6 Reset Switch..............................................................................................................12
2.7 8-Way SIL Switch......................................................................................................12
2.8 Jumpers.....................................................................................................................12
2.9 Status LEDs ..............................................................................................................13
2.10 Measuring Pins..........................................................................................................13
2.11 Fiber Optic Receptacles............................................................................................14
2.12 JTAG connector ........................................................................................................14
3. Software Section............................................................................................................15
3.1 General Description...................................................................................................15
3.2 Details .......................................................................................................................16
3.2.1 Startup Procedure...............................................................................................16
3.2.2 Timing.................................................................................................................17
3.2.2.1 Program cycle time..........................................................................................17
3.2.2.2 Watchdog Timer..............................................................................................17
