Interface Protocol v1.
Uart Configure on PC Baud Rate 9600 bps Data Bits 8 Bits Stop bits 1 Bit Parity No Parity Basic Uart Transfer Format Start 0 Start 1 Control Data Length Data Checksum Start 0/1 : These bytes are both 0x55. Control : This byte is controling meter. Data Length : The byte is the length of data. Data : These bytes are meter transfer to PC. Checksum : This byte is sum of all data array without carry.
Command Format Illustrate ● 0x00 : Read all data of meter PC to Meter Start 0 Start 1 Control Data Length Checksum 0x55 0x55 0x00 0x00 0xAA Meter to PC Start 0 Start 1 Control Data Length Data Checksum 0x55 0x55 0x00 0x36 See Below 0x?? Data Data Data Data Data Byte[0…9] : Model Name Data[0…9], total 10 bytes, ASCII code format Byte[10…17] : Serial Number Data[0…7], total 8 bytes, ASCII code format Byte[18, 19] : Firmware Version[0, 1] Byte[20] : Rotary Code Byte[21] : Blue Code Blue
Data Byte[25…37] : Calibration Data, total 13 bytes Data Data Data Data Note Byte[38…40] : Main Display Data[0…2]; 24 bits signed number Byte[41, 42] : Main Display Status Data[0, 1] Byte[43…45] : Sub Display Data[0…2] ; 24 bits signed number Byte[46, 47] : Sub Display Status Data[0, 1] : The display status format refer to table 1/2/3 Data Byte[48…54] : Calibration Data, total 5 bytes ● 0x11 : Read Datalog Amount & Type PC to Meter Start 0 Start 1 Control Data Length Checksum 0x55 0x55 0x11 0x00
● 0x13 : Read Store Data Amount PC to Meter Start 0 Start 1 Control Data Length Checksum 0x55 0x55 0x13 0x00 0xBD Meter to PC Start 0 Start 1 Control Data Length Data Checksum 0x55 0x55 0x13 0x02 See Below 0x?? Data Byte[0, 1] : Store data amount ● 0x18 : Command meter to Enter Download mode PC to Meter Start 0 Start 1 Control Data Length Checksum 0x55 0x55 0x18 0x00 0xC2 Start 0 Start 1 Control Data Length Checksum 0x55 0x55 0x20 0x00 0xCA Meter to PC ● 0x19 : Com
● 0x1A : Read Data of EEPROM PC to Meter Start 0 Start 1 Control Data Length Data Address Checksum 0x55 0x55 0x1A 0x04 See Below 0x?? Start 0 Start 1 Control Data Length Data Checksum 0x55 0x55 0x1A 1 - 64 Data of EEPROM 0x?? Meter to PC Data Address[0] : EEPROM No.
Data Format ● Store Data Max Stored Amounts : 1,000 Start Address : 400H at EEPROM No.0 End Address : 1788H at EEPROM No.0 Data Length : 5 bytes Data Format : Data MSB Data 2SB Data LSB 24 bits signed number Display Status [0] Display Status [2] Refer Table 1 Refer Table 4 ● Pause & Period Data Max Stored Amounts : 1,000 Start Address : 1800H at EEPROM No.0 End Address : 27A0H at EEPROM No.
Table Table 1 : Display Status [0] Bit 7, 6, 5, 4, 3 2, 1, 0 Content Display Unit : 00000 : None 00001 : V 00010 : mV 00011 : A 00100 : mA 00101 : dB 00110 : dBm 00111 : mF 01000 : uF 01001 : nF 01010 : Gohm 01011 : Mohm 01100 : Kohm 01101 : ohm 01110 : % 01111 : MHz 10000 : KHz 10001 : Hz 10010 : Temp. C 10011 : Temp. F 10100 : sec 10101 : ms 10110 : us 10111 : ns Others : None Dot Point : 000 : 99999 001 : 9999.9 010 : 999.99 011 : 99.999 100 : 9.
Table 2 : Display Status [1] Bit Content 7 Display Enable (0) / Display Disable (1) 6 Data Content : Number (0); Word (1) 5 Data Overload : Within Limit (0); OL (1) 4, 3, 2, 1, 0 Data Function : 00000 : None 00001 : Function of Rotary 00010 : Frequency 00011 : Cycle 00100 : Duty 00101 : Stamp (Store / Recall / Logout / Log Rate) 00110 : Store 00111 : Recall 01000 : Login Stamp 01001 : Logout 01010 : Log Rate 01011 : ∆ (Rel.
Table 3 : Display Data (Display Status [1].6 = Word) Display Data Content 0x000000 Er 0x000001 FULL 0x000002 Beep 0x000003 A.P.O. 0x000004 b.LITE 0x000005 HAZ.
Table 4 : Display Data [2] Bit Content 7 Display Enable (0) / Display Disable(1) 6 Data Content : Number (0); Word (1) 5 Data Overload : Within Limit (0); OL (1) 4, 3, 2, 1, 0 Data Function : 00000 : None 00001 : AC V 00010 : DC V 00011 : AC+DC V 00100 : AC mV 00101 : DC mV 00110 : AC+DC mV 00111 : Ohm 01000 : Beeper 01001 : Cap 01010 : Diode 01011 : AC A 01100 : DC A 01101 : AC+DC A 01110 : Hz 01111 : DF 10000 : Temp. C 10001 : Temp.
