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Prodigit 3302C Series Operation Manual

Electronic load mainframe
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3302C
Mainframe
Operation Manual
P/N:90033024 REV:G

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Summary of Contents for Prodigit 3302C Series

  • Page 1 3302C Mainframe Operation Manual P/N:90033024 REV:G...
  • Page 2 会也可能不会含有所有所列的部件。 This table shows where these substances may be found in the supply chain of Prodigit electronic information products, as of the date of sale of the enclosed product. Note that some of the component types listed above may or may not be a part of the enclosed product. ○ ：表示该有毒有害物质在该部...

  • Page 3: Table Of Contents

    3302C Series Mainframe Operation Manual Table of Contents Chapter 1 Introduction ..................1-1 1.1 Features ....................1-2 1.2 Option....................... 1-2 1.3 Specifications ................... 1-2 1.4 System block diagram ................1-3 Chapter 2 Installation ................... 2-1 2.1 Inspection ......................2-1 2.2 Check line voltage ....................2-1 2.3 Grounding requirements ..................
  • Page 4 Figures Fig 1-1 BLOCK DIAGRAM ................1-3 Fig 2-1 SET OF SWITCH ................2-1 Fig 2-2 AC LINE RECEPTACLE..............2-2 Fig 2-3 3302C REAR PANEL ................2-3 Fig 2-4 Diagram of Remote Control Port ............2-4 Fig 3-1 3302C FRONT PANEL................ 3-1 Fig 3-2 3302C FRONT PANEL KEY SWITCH..........

  • Page 5: Chapter 1 Introduction

    3250A/3310A/3310C/3330A 3320 series plug-in load module, 3250A/3310A/3310C/3330A and 3320 series plug-in module simple specification as table 1-1. Please contact your local PRODIGIT distributor or PRODIGIT sales dept. for detail specification. Model Max. current Max. voltage Max. power 3250A 20 Arms...

  • Page 6: Features

    1-2 PRODIGIT Features 3302C mainframe provides high performance easy operation and cost effective solution for power source testing, the features of the 3302C electronic load mainframe is described in the following : 1.1.1 Plug-in design, it is easy to replace different specifications load module.

  • Page 7: System Block Diagram

    3302C Series Mainframe Operation Manual 1-3 System block diagram The system block diagram is shown in Fig 1-1, there are two power supplies in 3302C mainframe one for 3302C mainframe, and others are for load module. The 3302C mainframe is optically isolated with load module.

  • Page 8: Chapter 2 Installation

    Your 3302C mainframe was shipped with a power cord for the type of outlet used at your location. If the appropriated cord was not included, please contact your nearest Prodigit sales office to obtain the correct cord. Refer to " check line voltage " to check the line voltage selection and fuse type.

  • Page 9: Grounding Requirements

    2-2 PRODIGIT 2.2.3 Check the rating of the line fuse and replace it with the correct fuse if necessary. 2.2.4 The AC line fuse is located below the AC line receptacle see Fig 2-2. With the power cord removed, use a small screwdriver to extract the fuse holder from under the AC socket.

  • Page 10: Cleaning And Storage

    Repairing If the instrument is damaged, please attach a tag to the instrument to identify the owner and indicated the require service or repairing. And inform the Prodigit sales and service office or representative. Accessories The following parts should be include in the shipment.

  • Page 11: Rs-232C Connection

    2-4 PRODIGIT 2.10 RS-232C Connection The RS-232C connector (Female) on the rear panel connects 3302C mainframe to RS-232C port of computer in one by one configuration. 2.11 Remote control Port There are two D-sub 9 pin connector on the rear panel, the Remote Input port...

  • Page 12: Chapter 3 Mainframe Operation

    3302C Series Mainframe Operation Manual 3-1 Chapter 3 Mainframe operation The front panel of 3302C mainframe is shown in Fig 3-1. STORE STATE START EXIT AUTO SEQ. ADDR. POWE BANK Fig 3-1 3302C FRONT PANEL Power switch Before connecting AC power to the 3302C mainframe, make sure the power source...

  • Page 13: Power On Status

    3-2 PRODIGIT Power on status 3302C: 3.2.1 Local/manual operation mode. 3.2.2 STORE/RECALL：All LED is OFF, BABK LED display shows 01; 3302C series electronic load is in power on initial state. 3.2.3 3250A/3310A/3310C/3330A and 3320 series electronic load is in power up initial state, please refer to electronic load module's operation manual.

  • Page 14: Store / Recall Operation

    3302C Series Mainframe Operation Manual 3-3 STORE / RECALL operation The eight function keys on the front panel of 3302C mainframe are designed for high testing throughput purpose. There are 5 and 150 operation states or testing steps can be store in the EEROM memory of 3250A/3310A, and 3310C/3330A series electronic load module respectively, each state can save or recall the load status and level for four Electronic load modules simultaneously.

  • Page 15: Auto Sequence Testing Function Description

    3-4 PRODIGIT 3.3.3 RECALL operation: 3.3.3.1 For 3250A and 3310A series, press one of the Memory State 1 through 5 key, the appropriate LED annunciator will be lit, the store state on the 3302C mainframe is sending to the electronic load module simultaneously.

  • Page 16: Fig 3-4 Store (Edit) Mode Operationo Flow-Chart

    3302C Series Mainframe Operation Manual 3-5 The EDIT MODE flow chart is described below: 3.4.1.1 There are nine Auto Sequence (n1-n9) can be edit within 3302C 3.4.1.2 Each Auto Sequence has up to 16 Test step, where each step is any one memory of 150 sets Store memory which is 30 memory Bank with 5 memory state.

  • Page 17: Fig 3-5 Test Mode Operation Flow-Chart

    3-6 PRODIGIT 3.4.2 TEST MODE The TEST Mode of Auto-Sequence function is entered by press S3 + S4 key simultaneously, the S3 and S4 LED are ON to indicate Auto-sequence mode, then the Test mode of Auto-sequence function is proceed by press START key.

  • Page 18: Chapter 4 Gpib/Rs-232 Programming Operation

    3302C Series Mainframe Operation Manual 4-1 Chapter 4 GPIB/RS-232 programming operation Introduction The rear panel GPIB/RS-232 interface of 3302C mainframe is designed to connect PC (Personal Computer) or NOTEBOOK PC with GPIB/RS-232 interface, the NOTEBOOK PC acts as a remote controller of 3250A/3310A/3310C/3330A and 3320 series Electronic Load.

  • Page 19: Gpib/Rs-232C Command List

    4-2 PRODIGIT GPIB/RS-232C COMMAND LIST GPIB/RS-232C setting and read back command are listed in table 4-1 and 4-2。 Setting Preset numeric command Model Remark 3310A 3310C 3330A 3320 3250A [PRESet：] BANK{SP}{d}{；|NL} d=0~10 [PRESet：] WAVE{SP}{m}{；|NL } M=0~4 [PRESet：] FREQuency{SP}{NR2}{；|NL} 40.0~70.0Hz [PRESet：] RISE{SP}{NR2}{；|NL} [PRESet：] FALL{SP}{NR2}{；|NL}...

  • Page 20: Table 4-2 Gpib/Rs-232 Query Command Summary

    3302C Series Mainframe Operation Manual 4-3 Query Preset numeric command Model RETURN 3310A 3310C 3330A 3320 3250A [PRESet：] BANK{SP}{?}{；|NL} 0~10 [PRESet：] WAVE{SP}{?}{；|NL} [PRESet：] FREQuency{?}{；|NL} 40.0~70.0 [PRESet：] RISE{?}{；|NL} ###.#### [PRESet：] FALL{?}{NR2}{；|NL} ###.#### [PRESet：] SLEWrate{?}{；|NL} ###.#### [PRESet：] SLEWRATE{?}{；|NL} ###.#### [PRESet：] PREIod：{HIGH|LOW}{?}{；|NL} ###.#### [PRESet：] LDONv{?}{；|NL}...
  • Page 21 4-4 PRODIGIT LIMIT command Model RETURN 3310C 3330A 3250A LIM：CURRent：{HIGH|LOW}{SP}{NR2}{；|NL} LIM：CURRent：{HIGH|LOW}{?}{；|NL} ###.#### LIM：POWer：{HIGH|LOW}{SP}{NR2}{；|NL} LIM：POWer：{HIGH|LOW}{?}{；|NL} ###.#### LIM：VA：{HIGH|LOW}{SP}{NR2}{；|NL} LIM：VA：{HIGH|LOW}{?}{；|NL} ###.#### LIM：VOLTage：{HIGH|LOW}{SP}{NR2}{；|NL} LIM：VOLTage：{HIGH|LOW}{?}{；|NL} ###.#### STAGE command Model RETURN 3310A 3310C 3330A 3320 3250A [STATe：] LOAD{SP}{ON|OFF}{；|NL} [STATe：] LOAD{?}{；|NL} 0:OFF,1:ON [STATe：] MODE{SP}{CC|CR|CV|CP}{；|NL} [STATe：] MODE{?}{；|NL} 0:CC,1:CR 2:CV,1:CP [STATe：] SHORt{SP}{ON|OFF}{；|NL}...
  • Page 22 3302C Series Mainframe Operation Manual 4-5 Note: CC AUTO/Ran2 Function is available in 3302C REV：2.8 or later Function is available in 3310C REV：3.05 or later Function is available in 3311C REV：3.05 or later Function is available in 3312C REV：3.06 or later Function is available in 3314C REV：3.05 or later...

  • Page 23: Table 4-3 Different Description

    4-6 PRODIGIT ※ 3310C Series and 3310A series GPIB command is compatible ,but the resolution is different , The different Description as following table . Model CC MODE CR MODE CV MODE 3310C 0-3A/30A 0.1067Ω-2Ω-7.5kΩ 0V-60V Resolution 0.8mA/8.0mA 0.533mΩ/0.133mS 0.016V...

  • Page 24: The Description Of Abbreviation

    3302C Series Mainframe Operation Manual 4-7 The description of abbreviation SP：Space, the ASCII code is 20 Hexadecimal. ; ：Semicolon, Program line terminator, the ASCII code is OA Hexadecimal. NL：New line, Program line terminator, the ASCII code is OA Hexadecimal. N ：Integer number from 1 to 8.

  • Page 25: Gpib/Rs-232 Command Description

    4-8 PRODIGIT GPIB/RS-232 command description 4.5.1 Setting Command CURRENT Level Purpose： The load current setting in Constant Current mode. Command syntax： CC：{LOW|HIGH}{SP}{NR2}{;|NL} LIN：{A|B}{SP}{NR23}{;|NL} CC：{A|B}{SP}{NR23}{;|NL} CC{SP}{NR2}{;|NL} Description： CC：{LOW|HIGH}{SP}{NR2}{;|NL} This command id used to set the current level of 3310 series Electronic Load module.
  • Page 26 3302C Series Mainframe Operation Manual 4-9 RESISTANCE Level Purpose： The load resistance setting in Constant Resistance mode. Command syntax： CR：{HIGH|LOW}{SP}{NR2}{;|NL} CR：{A|B}{SP}{NR2}{;|NL} CR：{SP}{NR2}{;|NL} Description: CR：{HIGH|LOW}{SP}{NR2}{;|NL} This command is used to set the LOW/HIGH load resistance level of 3310 series electronic load module.
  • Page 27 4-10 PRODIGIT VOLTAGE Level Purpose： The load voltage setting in Constant Voltage mode. Command Syntax : CV:{HIGH|LOW}{SP}{NR2}{;|NL} CV:{SP}{NR2}{;|NL} Description： CV:{HIGH|LOW}{SP}{MISS}{;|NL} This command is used to set the load voltage level of 3310A/3310C series Electronic load module. CV {SP}{NR2}{;|NL} This command is used to used to set the load Voltage level of 3330A series electronic load module.
  • Page 28 3302C Series Mainframe Operation Manual 4-11 LOAD ON/OFF Purpose： Turn the Electronic load module input ON or OFF. Command syntax： LOAD{SP}{0FF|ON}{NL} Description： This command sets the Electronic load to sink current from power source. LOAD ON the 3250A, 3310, 3330A and 3320 series Electronic load modules in the 3302C mainframe are ready to sink current from power source.
  • Page 29 4-12 PRODIGIT LEVEL HIGH/LOW Purpose： Select Low or High level in static mode of 3310 series electronic load, or LEVEL A/B of 3250A series electronic load. Command syntax： LEVE {SP}{HIGH|LOW|A|B}{NL} Description： LEVE LOW is Set LOW current level in CC mode, LOW resistance level in CR mode, or LOW voltage level in CV mode at the active load channel.
  • Page 30 3302C Series Mainframe Operation Manual 4-13 CLE clear the PROT and ERR status byte register, the PROT and ERR status byte register will be indicated〝0〞after execute the CLE command. STORE Purpose： STORE the load level and load status into the memory of the 3250A, 3310, 3330A and 3320 series electronic LOAD.
  • Page 31 4-14 PRODIGIT Purpose： To set synchronous function ON/OFF for 3250A series electronic load module. Command syntax： SYNC{SP}{0|1|OFF|ON}{；|NL} Description: 1.External synchronous signal (SYNC ON)：Using external synchronous signal as the synchronous triggering signal of the electronic load thus controlling the load current to be synchronous with the voltage.

  • Page 32: Table 4-5 Waveform Information

    3302C Series Mainframe Operation Manual 4-15 4.waveform bank 10 is DC. 5.There are five (5) waveform information for each waveform bank, therefore, there is a total 55 waveform information for eleven (11) waveform banks. Waveform information is shown in Table 4-4.
  • Page 33 4-16 PRODIGIT This command is for setting the frequency value of electronic load. Upon directing command, attention has to be paid to the following items： 1.The frequency value designated must include the decimals, otherwise, the command will become null and void.
  • Page 34 3302C Series Mainframe Operation Manual 4-17 POWER Limit Purpose： To set the upper/lower limit value of threshold power (W). Command syntax： LIM:POW:{HIGH|LOW}{SP}{NR2}{;|NL} Description： This command is to set the upper/lower limit value of threshold power (WATT). When power (WATT) is lower than this lower limit value or higher than the upper limit value, NG indicating light will come on to indicate〝NO GOOD〞.
  • Page 35 4-18 PRODIGIT Please make sure the appropriate timer range before execute the load the PERI LOW or HIGH command, otherwise the PERI load module will adjust to fit the Tlow and Thigh ranges after programming the PERD LOW or HIGH command. The engineering unit for PERI LOW and HIGH are〝ms〞.
  • Page 36 3302C Series Mainframe Operation Manual 4-19 Description： The FALL load current slew rate of load level change or dynamic load can be programmed by FALL command. The FALL slew rate of 3310 series Electronic Load module can be fully independent to the RISE slew rate.
  • Page 37 4-20 PRODIGIT SHORT ON/OFF Purpose： Short the DC input of Electronic load. Command syntax： SHOR{SP}{0|1|OFF|ON}{NL} Description： This command applies the short across the input of the Electronic load. Executing SHOR does not effect any programmed settings and the Electronic load will return to them when the short is removed.

  • Page 38: Table 4-6 Range I/Ii Full Scale Current For 3310/3320 Series Load

    3302C Series Mainframe Operation Manual 4-21 Description： Setting NG ON or OFF indicates that the NG check is enable or disable, the NG ON or OFF can be changed by NGAB ON/OFF command. The Load GO/NG check includes voltage and current meter GO/NG check, so, user can set the current's Upper limit to max.
  • Page 39 4-22 PRODIGIT When RANG command is executed, the values of the current level are adjusted as follow: 1.If the existing current setting is within the new range, then the current level does not change. 2.If the existing current level is setting in not within the new range, then the current level is set to the maximum of new range.
  • Page 40 3302C Series Mainframe Operation Manual 4-23 AUTO∣R2 (suitable for 333XA/331XC series) Command Syntax: CC {AUTO∣R2}{；∣NL} Description: To set up AUTO RANGE/RANGE II function To set up AUTO RANGE auto change RANGE I/II To explain: To set up RANGE II not auto change RANGE I/II TO choose in RAGNE II Note: CC AUTO/Ran2 Function is available in 3302C REV：2.8 or later...
  • Page 41 4-24 PRODIGIT OPP:START (suitable for 3310C series) Command syntax: OPP:START {SP}{NR2}{;|NL} Description: The initial power of OPP testing. OPP:STEP (suitable for 3310C series) Command syntax: OPP:STEP {SP}{NR2}{;|NL} Description: The increment step power of each OPP test. OPP:STOP (suitable for 3310C series) Command syntax: OPP:STOP {SP}{NR2}{;|NL}...
  • Page 42 3302C Series Mainframe Operation Manual 4-25 4.5.2 Query Command CURRENT Level Purpose： The Constant Current mode's load current level query command. Command syntax： CC:{HIGH|LOW}{?}{;|NL} CC:{A|B}{?}{;|NL} LIN:{A|B}{?}{;|NL} CC{?}{;|NL} Description： CURR:LOW? return the presently programmed low load current level in Constant Current mode of 3310 series electronic load module.
  • Page 43 4-26 PRODIGIT POWER Level Purpose： The Constant Power mode's load power level query command. Command syntax： CP:{LOW|HIGH}?{NL} Description： CP:LOW? return the presently programmed low load power level in Constant Power mode of 3310 series electronic load module. CP:HIGH? return the presently programmed high load power level in Constant Power mode of 3310 series electronic load module.
  • Page 44 3302C Series Mainframe Operation Manual 4-27 LEVEL HIGH/LOW Purpose： Static mode's LEVEl low or high status query command or active LEVEL of 3250 series electronic load query command. Command syntax： LEV?{NL} Description： LEV? return the presently level status,〝0〞indicates LEVel LOW, and〝1〞...

  • Page 45: Table 4-7 Prot Status Byte Register

    4-28 PRODIGIT Description： PROT? return the presently protection status, the status byte register summarizes all of the protection status events from all status register. Table 4-6 describes the status byte the happened on the 3250A/3310 series Electronic load. The PROT status byte register is cleared when a CLR command clear all of the PROT and ERR status registers.
  • Page 46 3302C Series Mainframe Operation Manual 4-29 VOLTAGE METER Purpose： The reading of 4 1/2 digit voltage meter read back query command. Command syntax： MEAS：VOLT?{NL} Description： MEAS:VOLT? return the presently 4 1/2 digital voltage meter reading. The returned data format is shown in Table 4-2, the engineering unit is〝V〞.
  • Page 47 4-30 PRODIGIT Power Meter Purpose： To read the value of Watt meter. Command syntax： MEAS：POW?{；|NL} Description： MEAS：POW? Read back the value of 4 digit of the Watt meter, unit is (W). VA METER Purpose： To read the value of VA meter.
  • Page 48 3302C Series Mainframe Operation Manual 4-31 WAVEFORM BANK Purpose： To read the set value of BANK Command syntax： BANK?{；|NL} Description： BANK? Read back the set value of BANK. 0～10 denotes waveform bank of level 0 ～level 10. WAVEFORM Purpose： To read the set value of WAVE.
  • Page 49 4-32 PRODIGIT CURRENT Limit Purpose： To read the set value of upper/lower limit value of threshold current. Command syntax： LIM:CURR{HIGH|LOW}?{；|NL} Description： LIM:CURR:LOW? Read back the lower limit set value of threshold current, unit is (A). POWER Limit Purpose： To read the set value of upper/lower limit value of threshold power(W).
  • Page 50 3302C Series Mainframe Operation Manual 4-33 PERIOD Purpose： The dynamic mode's Tlow or Thigh duration query command Command syntax： PERI:{LOW|HIGH}?{NL} Description： PREI:LOW? return the presently programmed low duration time in dynamic load mode PREI:HIGH? return the presently programmed high duration time in dynamic load mode The returned data format is shown in Table 4-2, the engineering unit is〝ms〞.
  • Page 51 4-34 PRODIGIT DYNAMIC ON/OFF Purpose： DYNamic ON or OFF status query command Command syntax： DYN?{NL} Description： DYN? return the presently DYNamic ON or OFF status,〝0〞indicates static load mode or DYNamic OFF, and〝1〞indicates DYNamic load mode or DYNamic ON. RANGE I/II Purpose：...

  • Page 52: Appendix A Gpib Programming Example

    National Instruments Cooperation (NIC) Model PC-2A board provides the interface between the PC-AT and a PRODIGIT MPAL ELECTRONIC LOAD. The appropriate *cib*.obj file is required in each program to properly link the NIC board to C LANGUAGE. and include the <decl.h.>...
  • Page 53 /* Clear spec string buffer */ ibrd(load,spec,20); if (spec[3] == '9') printf("\n 3302C series specification error !"); /* Set the channel 1, preset off, current sink 1.0 amps and load on commands to the load. */ ibwrt( load,"chan 1;pres off;cc:low 0.0;cc:high 1.0;load on ",47);...
  • Page 54 3302C Series Mainframe Operation Manual A-3 BASICA Example Program LOAD DECL.BAS using BASICA MERGE command. 100 REM You must merge this code with DECL.BAS 105 REM 110 REM Assign a unique identifier to the device "dev5" and store it in variable load%.

  • Page 55: Appendix B Rs-232 Programming Example

    3302C Series Mainframe Operation Manual B-1 Appendix B RS-232 programming Example C Language Interface for DOS Handlers " pd_rs232.c " #include <dos.h> #include <stdio.h> #include <conio.h> #include <string.h> #define COMPTR /* command array pointer #define QUELEN 1024 /* size of seriel input...
  • Page 56 /* frame error #define BI 0x10 /* break interrupt #define THRE 0x20 /* transmit holding reg. empty /* 3302C series elec. load command sets */ int pd_wrt(char *wrtbuf,int count) static char *combuf[COMPTR] = {"CHAN", "CURR:HIGH", "CURR:LOW", "RES:HIGH", "RES:LOW", "VOLT:HIGH", "VOLT:LOW", "PERD:HIGH", "PERD:LOW", "FALL",...
  • Page 57 3302C Series Mainframe Operation Manual B-3 strset(intbuf,''); strset(tempbuf,''); for (cnt = 0;cnt < count+1;cnt++,wrtbuf++) intbuf[cnt] = *wrtbuf; cnt = cnt--; intbuf[cnt] = '\r'; cnt = cnt++; count = count++; intbuf[cnt] = '\n'; t = strcspn(intbuf," "); if (t >count) t = count-1;...
  • Page 58 B-4 PRODIGIT if(ch == '?') read_buf(); }while((rd_result == 0)&&(timeout == 0)); rd_result = 0; for (cnt = 0;cnt<= count;cnt++) intbuf[cnt] = ''; tempbuf[cnt] = ''; return(result); return(OPER_ERR); int pd_rd(char *buf,int count) char ch; int cnt = 0; ch = queue[cnt];...
  • Page 59 3302C Series Mainframe Operation Manual B-5 char ch,ch1; int temp_index; unsigned long ticks; float sec1,sec2; rd_result = 0; ticks = biostime(0,0); sec1 = ticks/18.2; ticks = biostime(0,0); sec2 = ticks/18.2; if((sec2 - sec1) >= 20.0) /* delay about 1 Sec */ timeout = 1;...
  • Page 60 B-6 PRODIGIT }while ((rd_result == 0) && (timeout == 0)); int pd_init(int pd_com) if ((pd_com != 1) && (pd_com != 2)) return(OPER_ERR); if (pd_com == 2) /* initial communication port 2 ACE_DATA_REG 0x2f8; ACE_INT_ENB_REG 0x2f9; ACE_INT_IDENT_REG = 0x2fa; ACE_LINE_CTL_REG 0x2fb;...
  • Page 61 3302C Series Mainframe Operation Manual B-7 char tmpbuf[20] ={"chan "}; int cnt,result,t,cmp,measerr; char ch; char rdtmpbuf[20],chanbuf[20]; char measbuf[6]; for (cnt = 0; cnt < wrtmcnt; cnt++, wrtmbuf++) measbuf[cnt] = *wrtmbuf; strupr(measbuf); cnt = 0; measerr = strncmp(measbuf,wrtbuf[cnt],6); cnt = cnt++;...
  • Page 62 B-8 PRODIGIT break; case '4': pd_wrt("chan 4",6); pd_wrt("meas:curr?",10); pd_rd(rdmbuf,rdmcnt); strncat(tmpbuf,chanbuf,1); pd_wrt(tmpbuf,6); break; else if(strncmp(measbuf,"VOLT",4) == 0) ch = measbuf[5]; switch(ch) case '1': pd_wrt("chan 1",6); pd_wrt("meas:volt?",10); pd_rd(rdmbuf,rdmcnt); strncat(tmpbuf,chanbuf,1); pd_wrt(tmpbuf,6); break; case '2': pd_wrt("chan 2",6); pd_wrt("meas:volt?",10); pd_rd(rdmbuf,rdmcnt); strncat(tmpbuf,chanbuf,1); pd_wrt(tmpbuf,6); break; case '3': pd_wrt("chan 3",6);...
  • Page 63 3302C Series Mainframe Operation Manual B-9 break; else return(OPER_ERR); return (result); void pd_rem(void) char ch; outportb(ACE_INT_ENB_REG, 0xd); /* enable ACIA interrupt register inportb(ACE_DATA_REG); /* empty receive data register inportb(ACE_LINE_STAT_REG); /* clear line status register outportb(ACE_MODEM_CTL_REG, 0xb); /* set RTS,DTR to enable modem and...
  • Page 64 B-10 PRODIGIT int com; int io_err= 0; char rdbuf[1024]; clrscr(); printf("Input COM1/COM2 port is : "); scanf("%d", &com); if((io_err = pd_init(com)) == 0) /* Initial RS-232 interface */ setstr(rdbuf,''); pd_wrt("chan 1",6); delay(200); pd_wrt("name?",5); if ((io_err = pd_rd(a,10)) == 0) /* Set the channel 1, preset off, current sink 1.0 amps and load on commands to the load. */ pd_wrt("chan 1",6);...

  • Page 65: Appendix C 3250A Series Gpib/Rs-232 Operating Flow Chart

    3302C Series Mainframe Operation Manual C-1 Appendix C 3250A Series GPIB/RS-232 Operating flow chart The following flow chart shows the typical 3302C Series mainframe remote control and load current level and status setting procedures of each 3250 series load module.
  • Page 66 C-2 PRODIGIT START Lighti ng REM Indicater 3310A Series control chart specifi c list 3310A 3311A 3312A 3314A 3315A MODE ? MODE ? MODE ? 25. 0 100.0 25. 0 100.0 8000 4000 20000 20000 15000 0.05 1.25 "MODE CC"...

  • Page 67: Appendix D 3310A Series Gpib/Rs-232 Operating Flow Chart

    3302C Series Mainframe Operation Manual D-1 Appendix D 3310A Series GPIB/RS-232 Operating flow chart The following flow chart shows the typical 3302C Series mainframe remote control and load current level and status setting procedures of each 3310 series load module.

  • Page 68: Appendix E 3330A Series Gpib/Rs-232 Operating Flow Chart

    3302C Series Mainframe Operation Manual E-1 Appendix E 3330A Series GPIB/RS-232 Operating flow chart The following flow chart shows the typical 3302C Series mainframe remote control and load current level and status setting procedures of each 3330A series load module.

  • Page 69: Appendix F 3320 Series Gpib/Rs-232 Operating Flow Chart

    3302C Series Mainframe Operation Manual F-1 Appendix F 3320 Series GPIB/RS-232 Operating flow chart The following flow chart shows the typical 3302C Series mainframe remote control and load current level and status setting procedures of each 3320 series load module.

  • Page 70: Appendix G 3310C Series Gpib/Rs-232 Operating Flow Chart

    3302C Series Mainframe Operation Manual G-1 Appendix G 3310C Series GPIB/RS-232 Operating flow chart START MODE ? MODE ? MODE ? MODE ? “MODE CP” “MODE CC” “MODE CV” “MODE CR” CORRENT<=A RES>= HIGH or “RANGE “RANGE “RANGE “RANGE “LEV HIGH”...

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