Industrial communication

PROFINET is an industrial Ethernet system for automation applications. It supports industrial real-time communication and can use classic TCP/IP communication in parallel.

EtherNet/IP is an industrial Ethernet communication system based on the Common Industrial Protocol. It uses standard TCP/IP technologies and, among other things, UDP for cyclic real-time data.

Modbus is a protocol for transferring industrial process data. With Modbus TCP, Modbus messages are transferred over TCP/IP or Ethernet.

Many readers can send results as TCP data over Ethernet. After a successful read, for example, a string can be transferred to a PC or a PLC. The exact structure is defined in the reader's communication protocol.

RS-232 is a serial point-to-point communication interface. It is still used in older or simple reader and control applications.

Digital I/O means digital inputs and outputs. A reader can have, for example: input: trigger output: good read / no read The electrical limits have to be taken from the datasheet.

A good read output signals that a code was read successfully. It can be connected directly to a PLC, for example.

A no read signal can indicate that no valid code was detected within a defined read operation. Whether a dedicated hardware output is available or freely configurable for this depends on the reader.