SA5041 Digital Multimeter User ’s Guide
Shijiazhuang Suin Instruments Co., Ltd 17
Chapter 4 Programming Guide
4.1 Interface operation
With the technology of Single-Chip USB to UART Bridge, the USB interface of the Meter realizes
the communication by series technology, and follows its setting. But if user don’t have the address,
please refer to following instructions to select COM port.
Operating instructions
1. Connect USB and device using USB cable, then click as per below sequence: My
computer→Right-click→Hardware→Device Manager→Port→CP2101 USB to UART Bridge
Controller (COMX)
2. Open the software then set serial interface as per PC prompt.
Note: Baud rate: 9600, Check bit: None, Data bit: 8 bits, Stop bit: 1
4.2 SCPI Commands
Command Keywords and Parameters
Command commands and SCPI commands have two types: parameters and non-parameters. Take
the followings as example:
*RST parameters
:FUNCtion <name> parameter <name> required
:IMMediate non- parameters
A space at least is needed between command keywords and parameter.
Square bracket [ ]: parameters enclosed in Square bracket are optional and could be
omitted. For example,
：
RANGe[:UPPer] <n>
:UPPer is optional and you can send above command in one of following two formats,
：
RANGe <n>
or
：
RANGe:UPPer <n>
Note: when using optional commands in your program, don’t include square bracket [ ].
Angular bracket < >: indicates this option is a parameter type. And < > should be
omitted when programming. For example,
[:SENSe]:CURRent:AC:RANGe:AUTO <b>
<b> indicates that a Boolean parameter required here. Thus, if enable
Auto
function in
