Modbus Protocol For CM Module A6

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6.

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2. 5 Address The high four bits indicate Control Module's address, and the low four bits indicate string's number. For a sample if the Control Module address is set to 1 and trying to access string 1# data the The Control Module's address can be set in the menu. 6 How to test COM5 We can connect Control Module to a PC by PC's serial port,usually a RS232-to-RS485 converter is requi r For a sample , if the Control Module address is set to 1 and trying to access string 1# data , the modbus command address should be 11H(17 in decimal). Supposing Control Module's address is 1,if accessing the battery 1# voltage of string 1#,the The command from PC: 11 03 00 00 00 01 86 9A The respose form Control Module:11 03 02 XX XX CRCL CRCH "XX XX"is battery 1# voltage. command and reponse are as the below: Durin g the command is sendin g b y PC , the RX5 li g ht on Control Module's front p anel flashes , then During the command is sending by PC,the RX5 light on Control Module s front panel flashes,then TX5 light flashes.

7. Category Name Reference Data Address Remark Readable Sign of Discharge Readable Sign 425916 653BH It's readable if the value in the high byte is not 0xF0 Beginning Address 425917 653CH Record Lenth 425918 653DH Reacord Head 1 425919 653EH Year/Month, Start Time Reacord Head 2 425920 653FH Date/Hour,Start Time Reacord Head 3 425921 6540H Min/Sec,Start Time Reacord Head 4 425922 6541H Year/Month, End Time Reacord Head 5 425923 6542H Date/Hour, End Time Reacord Head 6 425924 6543H Min/Sec, End Time Reacord Head 7 425925 6544H Discharged Capicity Reacord Head 8 425926 6545H The battery ID with the lowest voltage after discharge Reacord Head 9 425927 6546H The voltage of the battery with the lowest Reacord Head 10 425928 6547H N/A Reacord Head 11 425929 6548H N/A Reacord Head 12 425930 6549H Total item number of discharge record Reacord Head 13 425931 654AH N/A String Voltage 1 425932 654BH String Voltage 2 425933 654CH ...... ...... ...... String Voltage 120 426051 65C2H String Discharge Current 1 426052 65C3H String Discharge Current 2 426053 65C4H ...... ...... ...... String Discharge Current1 2 426171 663AH Voltage 1 of Battery 1# 426172 663BH Voltage 2 of Battery 1# 426173 663CH ...... ...... ...... Voltage 120 of Battery 1# 426291 66B2H Voltage 1 of Battery 2# 426292 66B3H Voltage 2 of Battery 2# 426293 66B4H ...... ...... ...... Voltage 120 of Battery 2# 426411 672AH ...... ...... ...... Voltage 1 of Battery 300# 462052 F263H ...... ...... ...... Voltage 120 of Battery 300 # 462171 F2DAH Year/Month for Item 1 462172 F2DBH Date/Hour for Item 1 462173 F2DCH Min/Sec for Item 1 462174 F2DDH ...... ...... ...... Year/Month for Item 120 462529 F440H Date/Hour for Item 120 462530 F441H Min/Sec for Item 120 462531 F442H Discharge Record 1

5. Category Name Reference Data Address Year/Month 400001 0000H Day/Hour 400002 0001H Minute/Second 400003 0002H Cell Voltages Cell Voltage 1# 400004 0003H 300 Cell Voltage 2# 400005 0004H Cell Voltage 3# 400006 0005H ...... ...... ...... Cell Voltage300# 400303 012EH Year/Month 400304 012FH Day/Hour 400305 0130H Minute/Second 400306 0131H Cell Resistance Cell Resistance 1# 400307 0132H 300 Cell Resistance 2# 400308 0133H Cell Resistance 3# 400309 0134H ...... ...... ...... Cell Resistance300# 400606 025DH Year/Month 400907 038AH Day/Hour 400908 038BH Minute/Second 400909 038CH Cell Temperature Cell Temperature 1# 400910 038DH 300 Cell Temperature 2# 400911 038EH Cell Temperature 3# 400912 038FH ...... ...... ...... Cell Temperature 300# 401209 04B8H General Alarm General Alarm 401516 05EBH Individual Alarm Cell Alarm 1# 401517 05ECH 300 Cell Alarm 2# 401518 05EDH Cell Alarm 3# 401519 05EEH ...... ...... ...... Cell Alarm 300# 401816 0717H String Data String Voltage 401817 0718H 16 Discharge & Change Current 401818 0719H Complement Number For Discharge & Change Current 401819 071AH 401820 071BH Ambient 1 401821 071CH Ambient 2 401822 071DH 401823 071EH 401824 071FH 401825 0720H 401826 0721H String Alarm String Alarm 401833 0728H Last Voltage Updated Date Last Resistance Updated Date Last Temperature Updated Date

1. MODBUS Protocol 1 Port type COM5,RS-485 type,pin9 is -,pin5 is +,pin1 is GND. 2 Bits per Byte All Used in RTU mode, the default Bits per Byte listed as following. START 1 2 3 4 5 6 7 8 STOP 3 Communication rate The default is 19200BPS , and can be set to 1200 , 2400 , 4800 , 9600 , ..38400 , 56K , 115K in Contr o 4 Data Format Category Conversio Unit All values with two bytes, the highest bit indicates sign if it’s a temperature or a current.(0 is positive and 1 is negative) Category Conversio n method Unit Cell Voltages /1000 V Cell Resistance /1 u Ω Ambient /10 °C String Voltage /10 V Current /10 A For the individual alarm , each bit represents a state, 1 means alarm, 0 means normal. Different bit in same register means different alarm state, showed as below: Bit 0: Communication Error Bit 1: Low String Voltage Bit 2: High String Voltage Bit 3:N/A Bit 4: High IR Bit 5: N/A Bit 6:Module Error with IR Bit 7:Module Error with IR Bit 8:Module Error with Temperature Bit 9:High Temperature Bit 10:Error with Tem p erature Sensor

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