A programmable logic controller (PLC) is a device with a microprocessor that controls its outputs based on the information on its various inputs. In industry, machines are often controlled with PLCs and are part of automation. Exactly how the PLC reads in its data depends on the installed interface cards and the fieldbus networks through which various devices exchange data with each other.
The RS485 is a serial data communication standard that has been developed for when the communication distance has to be a few tens of meters to a few kilometers. RS485 uses balanced transmit and differential receive so it can reject common mode interference.
RS232 is a serial data communication standard established by the Electronic Industries Alliance (EIA). The original number is EIA-RS-232 (abbreviated 232, RS232). It is widely used for serial interface connections.
A bootstrap profile, also called provisioning or default profile, provides an eSIM with its default sim credentials to connect to a mobile network. This allows the eSIM to establish a connection for devices when they are first activated on the production line or deployed in the field.
A BACnet gateway connects and translates devices that use different network protocols, such as Modbus, to a BACnet network. This simplifies the communication between devices using different network protocols and enables such devices to work together on a BACnet network.
Modbus gateways are used to connect non-Modbus devices to a Modbus network, or vice versa. Reassigning registers to allow a new Modbus slave to emulate an old Modbus slave is another use of a Modbus gateway.
LTE User Equipment is the use of LTE categories to define the performance specifications of LTE devices. LTE UE enables LTE base stations to communicate effectively with them, knowing their performance levels. Some LTE UE categories such as LTE Cat 3, LTE Cat 4 and LTE Cat 0 are widely quoted and used. Others such as LTE Cat 7 and LTE Cat 8 are much newer and are used even less.
A gateway is located between edge systems (PLCs), devices on the one hand and the cloud on the other. With edge systems and devices you can think of installations, devices and sensors. The gateway exchanges useful information to the cloud by means of a mobile internet connection. Gateways basically offer more functionality than a router and can also work with serial ports RS232 and RS485, Modbus or MBus as well as analog and digital inputs & outputs.