1. No protocol communication No protocol communication is a function that does not use a fixed protocol, the protocol does not undergo data conversion, and inputs and outputs commands, such as TXD and RXD commands, through the communication port to transmit and receive data. In this case, the serial communication mode of the serial port is set to protocolless communication (both serial ports 1 and 2) by the system setting of plc. Through this protocol-free communication, a general-purpose external device with an RS-232 port or an RS-422A/485 port transmits and receives data unilaterally according to the TXD and RXD commands. The utility model provides a disposable electronic cigarette, comprising: a hollow shell, the bottom of the shell is provided with a lower cover; the shell contains an atomizer, and the outer side of the atomizer is sheathed with a disposable cigarette A bomb, a microphone cover is arranged under the atomizer, a microphone is covered under the microphone cover, a battery is arranged on one side of the atomizer, and an upper cover is arranged on the top of the casing; The atomizer includes an atomizing core, an oil-absorbing cotton sleeved on the outside of the atomizing core, and an atomizer outer tube sleeved on the outside of the oil-absorbing cotton. The disposable electronic cigarette provided by the utility model absorbs the smoke oil on the surface through the absorbing cotton, and then atomizes the smoke through the atomizing core, which greatly reduces the risk of oil leakage, at the same time, reduces the burning of cotton and ensures the smoking taste.The utility model provides a disposable electronic cigarette, comprising: a hollow shell, the bottom of the shell is provided with a lower cover; the shell contains an atomizer, and the outer side of the atomizer is sheathed with a disposable cigarette A bomb, a microphone cover is arranged under the atomizer, a microphone is covered under the microphone cover, a battery is arranged on one side of the atomizer, and an upper cover is arranged on the top of the casing; The atomizer includes an atomizing core, an oil-absorbing cotton sleeved on the outside of the atomizing core, and an atomizer outer tube sleeved on the outside of the oil-absorbing cotton. The disposable electronic cigarette provided by the utility model absorbs the smoke oil on the surface through the absorbing cotton, and then atomizes the smoke through the atomizing core, which greatly reduces the risk of oil leakage, at the same time, reduces the burning of cotton and ensures the smoking taste.The utility model provides a disposable electronic cigarette, comprising: a hollow shell, the bottom of the shell is provided with a lower cover; the shell contains an atomizer, and the outer side of the atomizer is sheathed with a disposable cigarette A bomb, a microphone cover is arranged under the atomizer, a microphone is covered under the microphone cover, a battery is arranged on one side of the atomizer, and an upper cover is arranged on the top of the casing; The atomizer includes an atomizing core, an oil-absorbing cotton sleeved on the outside of the atomizing core, and an atomizer outer tube sleeved on the outside of the oil-absorbing cotton. The disposable electronic cigarette provided by the utility model absorbs the smoke oil on the surface through the absorbing cotton, and then atomizes the smoke through the atomizing core, which greatly reduces the risk of oil leakage, at the same time, reduces the burning of cotton and ensures the smoking taste. maskking vape,maskking vape price,maskking vape review,maskking vape shop,,maskking vape cost,maskking vape disposable,maskking vape informacion Suizhou simi intelligent technology development co., LTD , https://www.msmvape.com
For example, simple data reception and transmission from data input from a bar code reader and data output to a printer can be performed.
Message frame sent and received when there is no protocol communication: The data between the start code and the end code is transmitted by the TXD instruction, or the data inserted between the "start code" and the "end code" is received by the RXD instruction. When sent according to the TXD instruction. The data is read from the I/O memory and sent. When receiving according to the RXD instruction, only the data is held in the designated area of ​​the I/O memory. The "Start/End Code" is specified by the PLC system settings. The length of the information that can be sent by one TXD instruction or RXD instruction (excluding the start code or the end code) is up to 256 bytes.
2. NT link communication
CP1H can communicate under PT (programmable terminal) and NT link (1:N mode with multiple links), but communication is not possible under NT link (1:1 mode). PT is NT31
In the case of the /631(C)-V2 series touch screen or the NS series touch screen, a high-speed NT link can be used.
The NT link can be set via the PLC system settings and the system menu on the PT unit.
When setting using the system menu on the PT unit, the PT side setting can be performed by the following operations.
(1) Select [NT Link (1:N)] in [Serial Port A] or [Serial Port B] in the memory switching menu in the system menu of the PT unit.
(2) Press the [Set] button to set [Communication Speed] to [High Speed].
3. The upper link communication upper link includes two aspects, that is, from the host computer to the PLC and PLC to the host computer. In the former, the CPU unit issues a superordinate link command (C mode command) or a FINS command from the host computer, and performs various operations such as reading and writing of the I/O memory of the PLC, change of the operation mode, and forced set/reset. In the latter, for the host computer, a FINS command is issued from the CPU unit to transmit data and information. (Source: http://) In the host computer, monitor the operation result data, abnormal data, command data in the PLC or indicate the production plan data information to the PLC. When the upper link is performed, the serial communication mode of the serial port can be set to the upper link communication (both serial ports 1 and 2) by the PLC system setting.
4. Serial PLC link communication is to install the RS-232C option board or the RS-422/485 option board on the CP1H CPU unit. Then, between the CP1H CPU units or between the CP1H CPU unit and the CJ1M CPU unit, it is not necessary. In the case of the program, data exchange is performed. In this case, the serial communication mode of the serial port needs to be set to the serial PLC link through the PLC system setting. Unlike other communication methods, serial port 1 or serial port 2 can be used. Any one, but not both. When the serial communication mode of one port is used as a serial PLC link master or a serial PLC link slave, the serial communication mode of the other port cannot be used as a serial PLC link master or serial PLC. Forging the slave station, otherwise the PLC system setting abnormality will occur.
When serial PLC link is performed, it can be set by the PLC system.
5. Tool bus communication enables high-speed communication between the PLC and peripheral tools through serial port 1 and serial port 2, but remote programming via modem is not possible. Its structure is shown below.
