ITech IT8500plus Series User Manual Download

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Series Frame Format

Programmable DC Electronic Load

Models

© Copyright 2005 All Rights Reserved

Ver1.1/MAR, 2008/8500-401

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Summary of Contents for IT8500plus Series

Page 1: ...1 IT8500 Series Frame Format Programmable DC Electronic Load Models IT8500 Copyright 2005 All Rights Reserved Ver1 1 MAR 2008 8500 401 ...

Page 2: ...NFORMATION 3 SAFETY SUMMARY 3 CHAPTER 1 REMOTE OPERATION MODE 5 1 1 IT E121 RS232 COMMUNICATION CABLE 5 1 2 IT E122 USB COMMUNICATION CABLE 5 CHAPTER 2 COMMUNICATION ORDER FOR IT8500 5 FRAME FORMAT 5 COMMUNICATION PROTOCOL 9 ...

Page 3: ... The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by the Customer Customer supplied software or interfacing unauthorized modification or misuse operation outside of the environmental specifications for the product or improper site preparation and maintenance Assistance The above statements apply only to the standard product warranty Warranty optio...

Page 4: ... be made only by qualified service personnel Do not replace components with power cable connected Under certain conditions dangerous voltages may exist even with the power cable removed To avoid injuries always disconnect power discharge circuits and remove external voltage sources before touching components DO NOT SERVICE OR ADJUST ALONE Do not try to do some internal service or adjustment unless...

Page 5: ...T E132 to connect the DB9 interface with the USB interface of PC Chapter 2 Communication Order for IT8500 Frame Format Frame length is 26 bytes Details as following AAH Address Command 4 25bytes are information content Parity code Description 1 Start bit is AAH occupies one byte 2 Address range from 0 to 31 occupies one byte 0XFF is boardcast address 3 Each command occupies one byte Following is t...

Page 6: ...40H Set one of the step s current and time values 41H Enquire one of the step s current and time values 4CH Save list file in appointed area 4DH Recall the list file from the appointed area 50H Set timer value of FOR LOAD ON 51H Enquire timer value of FOR LOAD ON 52H Disable Enable timer of FOR LOAD ON 53H Enquire timer state of FOR LOAD ON 54H Set communication address 55H Enable Disable LOCAL co...

Page 7: ...nomatter what the current trigger source it is A0H Read related information of E load working time the rest time of the timer A1H Read related information of E load max input voltage and current min input votage and current A2H Catch the max measuring voltage in list mode A3H Catch the min measuring voltage in list mode A4H Catch the max measuring current in list mode A5H Catch the min measuring c...

Page 8: ...me of single step D8H Set the delay time of single step D9H Enquire the delay time of single step DAH Set the no load time of single step DBH Enquire the no load time of single step DCH Set autotest stop condition DDH Enquire autotest stop condition DEH Set autotest chain file DFH Enquire autotest chain file E0H Save autotest file E1H Recall autotest file 0EH Set Von mode 0FH Enquire Von mode 10H ...

Page 9: ...byte System reserve From26th byte Sum code 3 Set Read max input voltage 22H 23H 1st byte Start bit AAH 2nd byte Address 0 31 0XFF 3rd byte Command 22H 23H 4th byte The Lowest byte of max voltage value 5th byte The lower byte of max voltage value 6th byte The higher byte of max voltage value 7th byte The highest byte of max voltage value From 8th to 25th byte System reserve 26th byte Sum code Repre...

Page 10: ...X00 5 Set Read max input power 26H 27H 1st byte Start bit AAH 2nd byte Address 0 0XFE 3rd byte Command 26H 27H 4th byte The lowest byte of max power value 5th byte The lower byte of max power value 6th byte The higher byte of max power value 7th byte The highest byte of max power value From 8th to 25th byte System reserve 26th byte Sum code Represent power value by 4 bytes of Hex Lower bytes are i...

Page 11: ... is 0X00007530 NO 4 bye is 0X30 NO 5 bye is 0X75 NO 6 bye is 0X00 NO 7 bye is 0X00 8 Set Read voltage value of CV mode 2CH 2DH 1st byte Start bit AAH 2nd byte Address 0 31 0XFF 3rd byte Command 2CH 2DH 4th byte The lowest byte of voltage value 5th byte The lower byte of voltage value 6th byte The higher byte of voltage value 7th byte The highest byte of voltage value From 8th to 25th byte System r...

Page 12: ...te of resistance value 7th byte The highest byte of resistance value 8th to 25th byte System reserve 26th byte Sum code Represent resistance value by 4 bytes of Hex Lower bytes are in the front location higher bytes are in the later location If resistance value is 200 000R Hex code is 0X00030d40 4TH byte is 0X40 5TH byte is 0X0d 6th byte is 0X03 7th byte is 0X00 11 Set Read CC mode transient curre...

Page 13: ...her bytes are in the later location 1represent 0 1mS 16th byte Transient operation mode 0 is CONTINUES 1 is PULSE 2 is TOGGLED From 17th to 25th byte System reserve 26th byte Sum code 13 Set Read CW transient watt and timer parameter 36H 37H 1st byte Start bit AAH 2nd byte Address 0 31 0XFF 3rd byte Command 36H 37H From 4th to 7th byte Setting value of power A Lower bytes are in the front location...

Page 14: ...ULSE 2 is TOGGLED 17th byte to 25th byte System reserve 26th byte Sum code 15 Set Read the list operation mode CC 3AH 3BH 1st byte Start bit AAH 2nd byte Address 0 31 0XFF 3rd byte Command 3AH 3BH 4th byte LIST operation mode 0 is CC mode From 5th to 25 byte System reserve 26th byte Sum code 16 Set Read the list repeat mode 3CH 3DH 1st byte Start bit AAH 2nd byte Address 0 31 0XFF 3rd byte Command...

Page 15: ...4DH 4th byte Storing area 1 7 From 5th to 25th byte System reserve 26th byte Sum code 20 Setting Reading timer value of FOR LOAD ON 50H 51H 1st byte Start bit AAH 2nd byte Address 0 31 0XFF 3rd byte Command 50H 51H 4th byte The lowest byte of time value in timer 1 represent 1S 5th byte The highest byte of time value in timer From 8th to 25th byte System reserve 26th byte Sum code Time unit in Time...

Page 16: ...AH 2nd byte Address 0 31 0XFF 3rd byte Command 56H 57H 4th byte Remote mode state 0 OFF 1 ON 5th to 25th byte System reserve 26th byte Sum code 25 Set Enquire trigger source 58H 59H 1st byte Start bit AAH 2nd byte Address 0 31 0XFF 3rd byte Command 58H 59H 4th byte Trigger mode 0 Manual 1 External 2 Bus 3 Hold From 5th to 25th byte System reserve 26th byte Sum code 26 Send a trigger signal to trig...

Page 17: ...ctual input voltage value Lower bytes are in the front location higher bytes are in the later location From 8th to 11th byte Actual input current value Lower bytes are in the front location higher bytes are in the later location From 12th to 15th byte Actual input power value Lower bytes are in the front location higher bytes are in the later location 16th byte Operation state register From 17th t...

Page 18: ...in the former location higher bytes are in the later location From 12th to 15th byte Rated min voltage Lower bytes are in the former location higher bytes are in the later location From 16th to 19th byte Rated max power Lower bytes are in the former location higher bytes are in the later location From 20th to 23th byte Rated max resistance Lower bytes are in the former location higher bytes are in...

Page 19: ...unction 84H 85H 1st byte Start bit AAH 2th byte Address 0 31 0XFF 3th byte Command 84H 85H From 4th Set OCP state 0 off 1 on From 5th to 25th byte System reverse 26th byte Sum code 34 Set Enquire software OPP value 86H 87H 1st byte Start bit AAH 2th byte Address 0 31 0XFF 3th byte Command 86H 87H From 4th to 7th byte Software OPP value Lower bytes are in the former location higher bytes are in the...

Page 20: ...ower bytes are in the former location higher bytes are in the later location From 8th to 25th byte System reserve 26th byte Sum code 38 Set Enquire Vd value in CR LED mode 8EH 8FH 1st byte Start bit AAH 2th byte Address 0 31 0XFF 3th byte Command 8EH 8FH From 4th to 7th byte Vd value Lower bytes are in the former location higher bytes are in the later location From 8th to 25th byte System reserve ...

Page 21: ...bit AAH 2th byte Address 0 31 0XFF 3th byte Command A0H From 4th to 7th byte On load capacitance Lower bytes are in the former location higher bytes are in the later location From 8th to 11th byte On load time or rising falling slope Lower bytes are in the former location higher bytes are in the later location From 12th to 15th byte The rest time of timer Lower bytes are in the former location hig...

Page 22: ... Catch the min measuring voltage in list mode A3H 1st byte Start bit AAH 2th byte Address 0 31 0XFF 3th byte Command A3H From 4th to 7th byte Min measuring voltage Lower bytes are in the former location higher bytes are in the later location reset this value after enquire From 8th to 25th byte Syetem reserve 26th byte Sum code 47 Catch the max measuring current in list mode A4H 1st byte Start bit ...

Page 23: ...e Current rising slope Lower bytes are in the former location higher bytes are in the later location From 8th to 25th byte Syetem reserve 26th byte Sum code 51 Set Enquire current falling slope B2H B3H 1st byte Start bit AAH 2th byte Address 0 31 0XFF 3th byte Command B2H B3H From 4th to 7th byte Current falling slope Lower bytes are in the former location higher bytes are in the later location Fr...

Page 24: ...om 8th to 25th byte Syetem reserve 26th byte Sum code 55 Set Enquire the current lower limit in CV mode BAH BBH 1st byte Start bit AAH 2th byte Address 0 31 0XFF 3th byte Command BAH BBH From 4th to 7th byte The current lower limit Lower bytes are in the former location higher bytes are in the later location From 8th to 25th byte Syetem reserve 26th byte Sum code 56 Set Enquire the voltage upper l...

Page 25: ... Address 0 31 0XFF 3th byte Command C2H C3H From 4th to 7th byte The voltage upper limit Lower bytes are in the former location higher bytes are in the later location From 8th to 25th byte Syetem reserve 26th byte Sum code 60 Set Enquire the voltage lower limit in CR mode C4H C5H 1st byte Start bit AAH 2th byte Address 0 31 0XFF 3th byte Command C4H C5H From 4th to 7th byte The voltaeg lower limit...

Page 26: ...cation if one step is set to short on mode then this bit should be set to 1 From 6th to 25th byte System reserve 26th byte Sum code 64 Set Enquire Pause steps D4H D5H 1st byte Start bit AAH 2th byte Address 0 31 0XFF 3th byte Command D4H D5H From 4th to 5th byte Autotest Pause steps Lower bytes are in the former location higher bytes are in the later location if one step need to pause then this bi...

Page 27: ...byte Step number From 5th to 7th byte Single step off load time Lower bytes are in the former location higher bytes are in the later location From 8th to 25th byte System reserve 26th byte Sum code 68 Set Enquire autotest stop condition DCH DDH 1st byte Start bit AAH 2th byte Address 0 31 0XFF 3th byte Command DCH DDH 4th byte Stop condition 0 complete 1 failure From 5th to 25th byte System reserv...

Page 28: ... 0XFF 3th byte Command 10H 11H 4th byte Von value Lower bytes are in the former location higher bytes are in the later location From 5th to 25th byte System reserve 26th byte Check sum Receiving one frame command and verify them If verify sum is wrong return the parameter 90H If setting parameter is wrong or over brim return parameter A0H If command is not enforce return to parameter B0H If comman...

Page 29: ... ITECH online service Web site is www itechate com ITECH is available to all ITECH customers It is the fastest source for up to date product information and expert assistance and includes the following features Fast access to email AE Software and driver updates for the product Call ITECH support line 4006 025 000 ...

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