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1 Getting Started ... 1-1 Overview ... 1-2 Applications ... 1-2 Performance features ... 1-2 Warranty information ... 1-2 Contact information ... 1-2 Specifications ... 1-3 Inspection ... 1-3 Options and accessories ... 1-3 Power supply overview ... 1-3 Remote display option ... 1-5 Power-up ... 1-7 Line power connection ... 1-7 Power-up sequence ... 1-7 Fuse replacement ... 1-8 Display modes ... 1-8 Default settings ... 1-11 Setups - Save, Power-on, and Recall ... 1-12 Menu ... 1-12 Getting around the MENU ... 1-14 SCPI programming ... 1-15 2 Basic Power Supply Operation ... 2-1 Test connections ... 2-2 Remote sense ... 2-5 Local sense ... 2-5 RFI considerations ... 2-6 Outputting voltage and current ... 2-6 Setting voltage protection value ... 2-6 Selecting proper current range ... 2-8 Selecting current limit mode ... 2-8 Editing output voltage and current limit values ... 2-9 Using the OPERATE key ... 2-11 Output bandwidth ... 2-11 Output impedance ... 2-12 Changing the battery channel’s output impedance ... 2-12 SCPI programming - outputting voltage and current ... 2-13 Command notes (outputting voltage and current) ... 2-14 Reading back V and I ... 2-16 V and I display modes (Single or Dual) ... 2-16 Measurement configuration ... 2-16 SCPI programming — measure V and I, and DVM input ... 2-17 Command notes (measure V and I, and DVM input) ... 2-18 Independent voltage measurements (DVM) ... 2-18 DVM input display mode ... 2-18 Measurement configuration ... 2-19 SCPI programming - DVM ... 2-19 Sink operation ... 2-19 Programming examples ... 2-21 Outputting and reading back V and I ... 2-21 DVM measurements ... 2-21 Analog output ... 2-22 Pulse Current Measurements ... 3-1 Overview ... 3-2 Trigger level ... 3-2 Trigger delay ... 3-3 Integration times ... 3-3 Average readings count ... 3-4 Measurement configuration ... 3-4 Current range ... 3-5 Integration times ... 3-5 Average readings count ... 3-5 Trigger delay and trigger level ... 3-6 Pulse current display mode ... 3-7 Pulse current measurement procedure ... 3-7 No pulses detected ... 3-8 Determining correct trigger level (pulse current) ... 3-9 TRIG NOT DETECTED message ... 3-11 SCPI programming - pulse current measurements ... 3-12 Command notes (pulse current measurements) ... 3-14 Using FAST, SEARch, and DETect ... 3-16 Pulse current digitization ... 3-19 Pulse current step method ... 3-20 TLEV steps ... 3-21 Timeout setting ... 3-25 Integration time ... 3-25 Range with pulse current step ... 3-26 Programming examples ... 3-26 Pulse current measurements ... 3-26 Pulse current digitization ... 3-27 Pulse current STEP method (battery channel only) ... 3-27 Long Integration Measurements ... 4-1 Overview ... 4-2 Integration time ... 4-3 Trigger edge ... 4-3 Trigger level ... 4-3 Pulse timeout ... 4-4 Measurement configuration ... 4-6 Current range ... 4-6 Integration time ... 4-6 Pulse timeout ... 4-7 Trigger edge and trigger level ... 4-7 Long integration display mode ... 4-8 Long integration measurement procedure ... 4-8 General notes ... 4-9 Determining correct trigger level (long integration) ... 4-9 SCPI programming ... 4-11 Command notes (long integration measurements) ... 4-12 Using FAST, SEARch, and DETect ... 4-12 Programming examples ... 4-16 Relay Control ... 5-1 Overview ... 5-2 Connections ... 5-3 Controlling relays ... 5-4 SCPI programming ... 5-5 GPIB Operation ... 6-1 Introduction ... 6-2 GPIB bus connections ... 6-2 Primary address ... 6-3 Setting the GPIB timeout for responses ... 6-4 Long integration readings ... 6-4 Pulse current readings ... 6-4 MAV (Message Available Bit) ... 6-4 General bus commands ... 6-5 REN (remote enable) ... 6-5 IFC (interface clear) ... 6-6 LLO (local lockout) ... 6-6 GTL (go to local) ... 6-6 DCL (device clear) ... 6-6 SDC (selective device clear) ... 6-6 GET (group execute trigger) ... 6-6 SPE, SPD (serial polling) ... 6-6 Front panel aspects of GPIB operation ... 6-6 Remote indicator and LOCAL key ... 6-7 Error and status messages ... 6-7 Programming syntax ... 6-7 Command words ... 6-7 Program messages ... 6-9 Response messages ... 6-11 Message exchange protocol ... 6-12 Status Structure ... 7-1 Overview ... 7-2 Status byte and SRQ ... 7-2 Status register sets ... 7-2 Queues ... 7-2 Clearing registers and queues ... 7-3 Programming and reading registers ... 7-4 Programming enable registers ... 7-4 Reading registers ... 7-5 Status byte and service request (SRQ) ... 7-5 Status byte register ... 7-6 Service request enable register ... 7-7 Serial polling and SRQ ... 7-7 Status byte and service request commands ... 7-8 Status register sets ... 7-8 Register bit descriptions ... 7-8 Condition registers ... 7-12 Event registers ... 7-12 Event enable registers ... 7-13 Queues ... 7-14 Output queue ... 7-15 Error queue ... 7-15 Programming example - read error queue ... 7-16 Common Commands ... 8-1 Overview ... 8-2 IEEE-488.2 common commands and queries ... 8-2 *IDN? ... 8-2 *OPC ... 8-3 *SAV <NRf> and RCL <NRf> ... 8-3 *RST ... 8-4 *TRG ... 8-4 *TST? ... 8-4 *WAI ... 8-4 Measurement Commands and Optimizing Measurement Speed ... 9-1 Overview ... 9-2 Command notes: Signal-oriented measurement commands and queries ... 9-3 Optimizing measurement speed ... 9-5 Auto Zero State ... 9-5 Programming examples ... 9-6 GPIB 488.1 protocol ... 9-7 Selecting the 488.1 protocol ... 9-7 Protocol differences ... 9-8 Trigger on talk both channels ... 9-9 Bus commands ... 9-10 Command notes ... 9-10 Trigger continuous mode ... 9-10 Bus commands ... 9-10 Command notes ... 9-11 Using trigger continuous mode ... 9-11 Programming sequence example ... 9-11 DISPlay and FORMat ... 10-1 DISPlay subsystem ... 10-2 Command notes (SCPI commands - display) ... 10-2 FORMat subsystem ... 10-4 Command notes (SCPI commands - data format) ... 10-5 SCPI Tables ... 11-1 SCPI command subsystems reference tables ... 11-2 General notes ... 11-2 DISPlay command summary ... 11-3 FORMat command summary ... 11-4 OUTPut command summary ... 11-5 SENSe command summary ... 11-6 SOURce command summary ... 11-13 STATus command summary ... 11-14 SYSTem command summary ... 11-15 Performance Verification ... 12-1 Introduction ... 12-2 Verification test requirements ... 12-2 Environmental conditions ... 12-2 Warm-up period ... 12-2 Line power ... 12-3 Recommended test equipment ... 12-3 Resistor connections ... 12-3 Resistor considerations ... 12-4 Verification limits ... 12-4 Example limits calculation ... 12-4 Performing the verification test procedures ... 12-4 Test summary ... 12-4 Test considerations ... 12-5 Output voltage accuracy ... 12-5 Voltage readback accuracy ... 12-7 Compliance current accuracy ... 12-8 Current readback accuracy ... 12-9 5 A range readback accuracy ... 12-9 500 mA range readback accuracy ... 12-10 50 mA range readback accuracy ... 12-12 5 mA range readback accuracy ... 12-13 Digital voltmeter input accuracy ... 12-15 x A B Battery/Charger Simulator User’s Manual Table of Contents Topic Page Calibration ... 13-1 Introduction ... 13-2 Environmental conditions ... 13-2 Temperature and relative humidity ... 13-2 Warm-up period ... 13-2 Line power ... 13-2 Calibration considerations ... 13-2 Calibration cycle ... 13-3 Recommended calibration equipment ... 13-3 Resistor connections ... 13-3 Resistor considerations ... 13-3 Front panel calibration ... 13-4 Step 1: Prepare the Model 2308 for calibration ... 13-4 Step 2: Perform battery channel calibration steps ... 13-5 Step 3: Perform charger channel calibration steps ... 13-9 Step 4: Enter calibration dates, and save calibration ... 13-10 Remote calibration ... 13-11 Remote calibration display ... 13-11 Remote calibration procedure ... 13-11 Step 1: Prepare the Model 2308 for calibration ... 13-11 Step 2: Perform battery channel calibration steps ... 13-12 Step 3: Perform charger channel calibration steps ... 13-13 Step 4: Program calibration date ... 13-14 Step 5: Save calibration constants and lock out calibration ... 13-14 Changing the calibration code ... 13-15 Changing the code from the front panel ... 13-16 Changing the code by remote ... 13-16 Resetting the calibration code ... 13-16 Viewing calibration date and count ... 13-17 Viewing date and count from the front panel ... 13-17 Acquiring date and count by remote ... 13-17 Topic Page Error and Status Messages ... A-1 Error and status message definitions ... A-2 Calibration Reference ... B-1 Introduction ... B-2 Command summary ... B-2 Miscellaneous commands ... B-2 Detecting calibration errors ... B-5 Reading the error queue ... B-5 Error summary ... B-5 Status byte EAV (Error Available) bit ... B-6 Generating an SRQ on error ... B-6 Detecting calibration step completion ... B-6 Using the *OPC command ... B-7 Using the *OPC? query ... B-7 Generating an SRQ on calibration complete ... B-7