SST-DN3-PCI-2 DSQC658 | MOLEX | Serial communication hardware structure

Description

SST-DN3-PCI-2 DSQC658 | MOLEX | Serial communication hardware structure

1. .Many products are not yet on the shelves please contact us for more products
2. .If there is any inconsistency between the product model and the picture on display, the model shall prevail. Contact us for the specific product picture, and we will arrange to take photos in the warehouse for confirmation
3. .We have 16 shared warehouses around the world, so please understand that it can sometimes take several hours to accurately return to you. Of course, we will respond to your concerns as soon as possible

Schematic diagram of the connection betweenSST-DN3-PCI-2  series machine and PIC16F877A microcontroller. The dedicated chip MAX485 in the figure converts the TTL level signal output by the DSQC658 microcontroller TX into RS-232C level, inputs it to the IBM-PC machine, and converts the RS-232C level output by the IBM-PC machine into TTL level signal. Inputs it to the RX pin of the PIC16F877A microcontroller. The upper computer used in this article uses WINDOWS2000 as the software and hardware environment, while the lower computer is controlled by a SST-DN3-PCI-2  microcontroller. Both upper and lower computers can send and receive data, and the upper computer determines whether to send or receive it.

By using the serial port configured on a SST-DN3-PCI-2  , it is easy to achieve data communication between IBM-PC series computers and PICl6F877A microcontrollers. Due to the fact that the input and output of the PIC16F877A microcontroller are both TTL levels, while the IBM-PC series machines are configured with RS-232C standard serial interfaces, the electrical specifications of the two are inconsistent. Therefore, in order to SST-DN3-PCI-2  data communication between the PC and microcontroller, level conversion is necessary

Mailbox：sauldcsplc@gmail.com |SST-DN3-PCI-2 DSQC658
www.abbgedcs.com | Qiming Industrial Automation| Simon +86 13822101417