Cable length: 1.0m.
Weight: 0.23kg.
Definition 1: conductor by one or a plurality of mutually insulated and insulating protective layer made of,
A conductor of electricity or information from one place to another.
Definition 2: usually by a few or several groups (each with at least two wires) cable rope twisted the similar,
Each group of wires are insulated from each other, and are often twisted around a center,
The entire outer bread has a highly insulated cover PM-20BL
The cable has the characteristics of internal power and external insulation. Series introduction: with a variety of first type functions and communication interface standard model.
Screen size: 5.7 inches PM-20BL.
Display color: 256 color or more color .
Mounting type: panel mounting type.
Resolution: QVGA (320 x 240).
Display device: TFT color (high brightness, wide viewing angle).
Host frame color: black.
Power type: DC24V.
With a built-in Ethernet communication interface.
Standard model with various pre - and communication interface.
User storage capacity: 9MB.
Device USB interface.
Standard Ethernet, RS-422/485 and RS-232 interface PM-20BL.
The standard SD card interface.
According to the working principle of the touch screen and the transmission of information of the media, the touch screen is divided into four kinds,
They are resistive, capacitive, inductive, infrared, and surface acoustic waves.
Each touch screen has its own advantages and disadvantages, to understand which kind of touch screen to apply to what kind of occasion,
The key is to understand the working principle and characteristics of each type of touch screen technology. Enter 8 points.
7mA DC24V.
Response time: 12ms.
8 positive, 1 public to reduce the public in common use.
Output 8 points.
DC24V/AC240V, 2A/1 point, 8A/1 common.
Response time: 12ms.
8 point 1 public 20 point terminal.
PLC is introduced by the relay control technology after the development of micro processing technology,
Can be easily and reliably used for switching control.
As the analog quantity can be converted into digital quantity, the number of digital quantity is just a number of switching value,
Therefore, after the conversion of analog, PLC can also be reliable for processing control.
Because the continuous production process often has the analog quantity, the analog quantity control is sometimes called process control.
Analog quantity is not electricity, and PLC can only handle digital quantity, quantity of electricity.
All to realize the conversion between them to have the sensor, the analog quantity into a number of power.
If this power is not standard, but also through the transmitter,
The non-standard power into a standard electrical signal, such as 1-5V, 4-20mA, 0-10V, etc..
At the same time, there is also an analog input uunit (A/D),
Transform these sstandard electrical signals into digital signals,
The analog output unit (D/A), in order to transform the digital quantity after PLC processing into analog quantity -- standard electric signal PM-20BL.
So the standard telecommunication number, the conversiionn between the number of operations to use a variety of computing PM-20BL.
This requires the resolution of the analog unit and the standard electrical signal.
PM-20BL Operation manual/Instructions/Model selection sample download link: /searchDownload.html?Search=PM-20BL&select=5