6.4.2 Voltage Setting 18
6.4.3 Current Setting 18
6.5 Parameter Control 19
6.6 Parameter Pre-set 19
6.6.1 Storing the Pre-settings 20
6.6.2 Loading the Pre-settings 20
6.7 Error Messages 21
7 Remote Control by Program 22
7.1 Preparing the Power Supply Unit 22
7.1.1 Interface GPIB (IEEE-488.2) 22
7.1.2 Interface RS-232C 22
7.2 Transition: Remote Control ⇔ Local Control 23
7.3 Messages of the Power Supply Unit on Remote Control 24
7.3.1 Description of the Unit State 24
7.3.1.1 ESR - EVENT STATUS REGISTER 24
7.3.1.2 STB - STATUS BYTE REGISTER 24
7.3.2 Description of Results 25
7.3.3 Description of Errors 26
7.3.3.1 DER - DEVICE ERROR REGISTER 26
7.3.3.2 Error Messages 26
7.4 List of Commands on Remote Control 27
7.4.1 General Commands 27
7.4.2 Commands and Messages 29
7.5 Measurement by Remote Control 30
7.6 Program Examples (Q-Basic) 32
8 Maintenance 33
9 Appendix 34
2
Operating Instructions PN 300
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