KEPCO EL Series Electronic Load Operator Manual P/N 243-1295 Firmware Version 4.00 to 4.xx - Manual (Page 4)

ii
SERIES EL 071414
TABLE OF CONTENTS
SECTION PAGE
2.7.3 E Option - Ethernet Interface .................................................................................................................. 2-13
SECTION 3 - OPERATION
3.1 General ...................................................................................................................................................... 3-1
3.2 Factory Default Settings............................................................................................................................. 3-1
3.3 Turning the Unit On.................................................................................................................................... 3-2
3.3.1 Error Conditions...................................................................................................................................... 3-2
3.4 Selecting the Mode and Setpoint ............................................................................................................... 3-3
3.5 Engaging the Load ..................................................................................................................................... 3-4
3.6 Disengaging the Load ................................................................................................................................ 3-4
3.7 Viewing Configuration Information ............................................................................................................. 3-4
3.8 Changing IP Mode ..................................................................................................................................... 3-5
3.9 Changing Static IP Address or Subnet Mask ............................................................................................. 3-5
3.10 Changing GPIB Address ............................................................................................................................ 3-6
3.11 Operation of Master/slave Configurations.................................................................................................. 3-6
3.11.1 Power Up ................................................................................................................................................ 3-6
3.11.2 Local (Front Panel) Operation ................................................................................................................ 3-6
3.11.3 Remote (Computer) Operation ............................................................................................................... 3-6
3.11.4 Indications During Master/Slave Operation ............................................................................................ 3-7
3.11.5 Master/Slave Controls and Indicators..................................................................................................... 3-7
3.11.6 Master/Slave Operating Notes/Cautions/Warnings ................................................................................ 3-7
3.11.7 Master/Slave Disconnect ........................................................................................................................ 3-8
3.12 Operation via Computer Interface .............................................................................................................. 3-8
3.13 SCPI Programming .................................................................................................................................... 3-9
3.13.1 SCPI Messages ...................................................................................................................................... 3-9
3.13.2 Common Commands/Queries ................................................................................................................ 3-9
3.13.3 SCPI Subsystem Command/Query Structure......................................................................................... 3-12
3.13.3.1 DIAGNOSTIC Subsystem ................................................................................................................. 3-12
3.13.3.2 PROTection Subsystem .................................................................................................................... 3-13
3.13.3.3 [SOURce:]MEASure Subsystem ....................................................................................................... 3-13
3.13.3.4 [SOURce:]InPut, [SOURce:]OUTPut Subsystems ............................................................................ 3-13
3.13.3.5 [SOURce:]VOLTage, [SOURce:]CURRent, [SOURce:]POWer Subsystems.................................... 3-13
3.13.3.6 [SOURce:]Resistance, [SOURce:]CONDuctance Subsystems......................................................... 3-13
3.13.3.7 STATus Subsystem........................................................................................................................... 3-14
3.13.3.8 SYSTem subsystem .......................................................................................................................... 3-14
3.13.4 Program Message Structure................................................................................................................... 3-15
3.13.4.1 Keyword............................................................................................................................................. 3-15
3.13.4.2 Keyword Separator............................................................................................................................ 3-15
3.13.4.3 Query Indicator .................................................................................................................................. 3-15
3.13.4.4 Data ................................................................................................................................................... 3-15
3.13.4.4.1 Multiple Line Messages ............................................................................................................... 3-15
3.13.4.5 Data Separator .................................................................................................................................. 3-15
3.13.4.6 Message Terminator.......................................................................................................................... 3-16
3.13.5 Understanding The Command Structure ................................................................................................ 3-16
3.13.6 Program Message Syntax Summary ...................................................................................................... 3-17
3.13.7 Status Reporting ..................................................................................................................................... 3-17
3.13.7.1 Status Reporting Structure ................................................................................................................ 3-17
3.13.7.2 Standard Event Status Register ........................................................................................................ 3-17
3.13.7.3 QUEStionable Status Register .......................................................................................................... 3-19
3.13.7.4 Channel Status Register.................................................................................................................... 3-19
3.13.7.5 Channel Summary Register .............................................................................................................. 3-20
3.13.7.6 Status Byte Register.......................................................................................................................... 3-20
3.14 Damping..................................................................................................................................................... 3-20
3.14.1 Damping Adjustments............................................................................................................................. 3-21
3.14.2 Recommended Damping Adjustment Procedure ................................................................................... 3-21
3.14.3 Damping Procedure using Front Panel Controls .................................................................................... 3-23
3.15 Programming Time Required to Change State (Ramps) ........................................................................... 3-23