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A programmable logic controller (PLC) or programmable controller is an industrial computer that has been ruggedized and adapted for the control of manufacturing processes, such as assembly lines, machines, robotic devices, or any activity that requires high reliability, ease of programming, and process fault diagnosis.
FINS, Factory Interface Network Service, is a network protocol used by Omron PLCs, over different physical networks like Ethernet, Controller Link, DeviceNet and RS-232C.. The FINS communications service was developed by Omron to provide a consistent way for PLCs and computers on various networks to communicate.
Omron was established by Kazuma Tateishi (立石一真) in 1933 (as the Tateisi Electric Manufacturing Company) and incorporated in 1948. The company originated in an area of Kyoto called "Omuro (御室) ", from which the name "Omron" was derived. Prior to 1990, the corporation was known as Omron Tateisi Electronics. During the 1980s and early ...
DF-1 - used by Allen-Bradley ControlLogix, CompactLogix, PLC-5, SLC-500, and MicroLogix class devices; DNP3 - a protocol used to communicate by industrial control and utility SCADA systems; DirectNet – Koyo / Automation Direct proprietary, yet documented PLC interface; EtherCAT; Ethernet Global Data (EGD) – GE Fanuc PLCs (see also SRTP)
Jürgen Kaftan: "Practical Examples with AC500 from ABB: 45 Exercises and Solution programmed with CoDeSys Software". IKH Didactic Systems ISBN 978-3943211061; Tom Mejer Antonsen: "PLC Controls with Structured Text (ST): IEC 61131-3 and best practice ST programming", ISBN 978-87-4301-855-1 (further languages available)
Structured text, abbreviated as ST or STX, is one of the five languages supported by the IEC 61131-3 standard, designed for programmable logic controllers (PLCs). [1] [2] It is a high level language that is block structured and syntactically resembles Pascal, on which it is based. [3]
HostLink [1] is communication protocol for use with or between PLC's made by Omron.It is an ASCII-based protocol generally used for communication over RS-232 or RS-422.The protocol enables communication between various pieces of equipment in an industrial environment for programming or controlling those pieces of equipment.
Modbus or MODBUS is a client/server data communications protocol in the application layer. [1] It was originally designed for use with programmable logic controllers (PLCs), [2] but has become a de facto standard communication protocol for communication between industrial electronic devices in a wide range of buses and networks.