Voltcraft VC870 Digital Multimeter with Software included 40 000 Counts CAT IV 600V, CAT III 1000V VC870 信息指南

产品代码

VC870

VC870 Protocol

communication interface.
1. Baud rate of RS232 serial interface is 9600 bits / S, a frame message is 10 bit: no parity, 1 bit start bit (0), 8

data bits (low bit onward) (1), 1 bit stop bit (1).

mcu transmission packet format

1 Function rs232_dat[0]

2 Function Select Function_ select rs232_dat[1]

Function code

Function_ select code

Measurement mode

0x30 (0110000)

DCV

0x30 (0110000)

0x31 (0110001)

ACV

0x31 (0110001)

0x30 (0110000)

DCmV

0x31 (0110001)

Celsius ( )

0x32 (0110010)

0x30 (0110000)

Resistance OHM

0x32 (0110010)

0x31 (0110001)

Short-circuit test CTN

0x33 (0110011)

0x30(0110000)

Capacitance CAP

0x34 (0110100)

0x30 (0110000)

Diode DIO

0x35 (0110101)

0x30 (0110000)

Frequency

0x35(0110101) 0x31

(0110001)

(4~20mA)%

0x36 (0110110)

0x30 (0110000)

DCuA

0x36 (0110110)

0x31 (0110001)

ACuA

0x37 (0110111)

0x30 (0110000)

DCmA

0x37 (0110111)

0x31 (0110000)

ACmA

0x38 (0111000)

0x30 (0110000)

DCA

0x38 (0111000)

0x31 (0110000)

ACA

0x39 (0111001)

0x30 (0110000)

Active power +Apparent power

0x39 (0111001)

0x31 (0110000)

Power factor+ Frequency

0x39(0111001)

0x32(0110000)

Voltage effective value +current effective value

3 Main Display Range rs232_dat[2]

code

DCV ACV DCmV OHM

CAP DCuA DCmA DCA ACuA ACmA ACA

0110000

4V 4V 400mV

400Ω

40nF 400uA 40mA 10A

400uA 40mA 10A

0110001

40V 40V

4KΩ

400

nF 4000uA 400mA

4000uA 400mA

0110010

400V 400V

40KΩ

4000

0110011

1000V 1000V

400KΩ 40uF

0110100

4MΩ 400μF

0110101

40MΩ 4mF

0110110

40mF

4 Main display value

DISP1_DIGIT4~DISP1_DIGIT0 rs232_dat[3] rs232_dat[4]

rs232_dat[5]

rs232_dat[6]

rs232_dat[7]

5 Auxiliary display value DISP2_DIGIT4~DISP2_DIGIT0 rs232_dat[8] rs232_dat[9] rs232_dat[10] rs232_dat[11]

rs232_dat[12]

Parameters code

0 0110000

1 0110001

2 0110010

3 0110011

4 0110100

5 0110101

6 0110110