Request Instrument Measurements Or Checks; Measurement Request - Metrix MX 554 Manual De Instrucciones

**** Programming the range as a function of the measurement being made
Y
30H 500 mV
31H 5 V
32H 50 V
33H 500 V
34H 750V / 1000V
35H
36H
3AH auto range

5.4.2.2. Request instrument measurements or checks

Message: "3X" + CR (0DH)

5.4.2.2.1. Measurement request

The PC may ask the DMM for:
- the last measurement made ("30")
- the next measurement ("31")
- repetitive measurements ("33")
- MIN, MAX, AVG recorded values ("380", "381", "382")
The multimeter returns the result in the form of an ASCII message expressed in the
suitable unit (except for MIN, MAX, AVG).
Message received by the PC when requesting MIN, MAX or AVG :
The received message contains up to 11 characters : C1 to C10 + CR
C1 to C5 : indicates the value of the requested measurement in ASCII
C6 :
C7 :
C8 :
C9 & C10 :
C11 :
44
voltage current
500 µA
5 mA
50 mA
500 mA
10 A
auto range
(C1 : low significant bit ; C5 : most significant bit)
indicates the number of the range in ASCII (refer to section
5.4.2.2.2., character 6). Furthermore, if the requested
measurement is negativ, 8 will be added in hexadecimal to the
range.
if C7 is > 8 (in ASCII), the requested measurement is
overpassed.
indicates the switch position during MIN, MAX, AVG mode
(refer to section 5.4.2.2.2, character 3).
indicates the type of measured function (refer to section
5.4.2.2.2., character 3).
CR
ohm capacity
500 Ω
50 nF
500 nF
5 kΩ
5 µF
50 kΩ
50 µF
500 kΩ
5 MΩ 500 µF
5 mF
50 MΩ
50 mF
auto range auto range
Chapter II
Benchtop multimeter