In this post it is showed how to test the RS-485 on Ardbox HF version. The first thing that you need to know is that the RS-485 HF version have full and half duplex communication. Controlling the dip switch you must select if you want to work on full or half duplex. There is internally installed a half duplex MAX485 and MAX485 transmitter. If you are working on full duplex you will use the MAX485 half duplex to receive data and MAX485…
In this post we are going to learn how to send data between Industrial Shields PLCs and TouchBerry PI PanelPc. In order to apply or implement the functionalities and examples described, the TouchBerry PI is assumed to include the suitable preloaded image. All PanelPC acquired as of 21-08-2015 will include the required image. For those PanelPC acquired before 21-08-2015 the procedure to install the new compatible image will be provided via email. Touchberry PI Touchberry PI supports TTL (5V-0V) serial communication through the D37…
Arduino based PLC through RS485 port can connect with other devices which also use RS485 communication port PLC available to use RS485: 20 I/Os PLC: Ardbox Analog Ardbox Relay Ethernet PLC: M-duino 21 M-duino 42 M-duino 58 M-duino 19R M-duino 38R M-duino 57R
Modbus is a Serial communications protocol and it is used for communicating with several industrial devices. It may run over RS485, Ethernet, or whatever hardware interface. If we have an ethernet connection between a lot of devices, we can use this hardware connection (eth), and over it, we can use our own protocol (custom protocol,…), or for instance, Modbus protocol. The way is the same as using RS485, but hardware connections will become much easier, the speed will be higher, and…