PLC I/O Modules

PLC I/O modules are one of the core functional components that exist within a programmable logic controller system, in simple terms PLC I/O modules act as messengers between the CPU and process control devices.

The main function of a PLC I/O module is to process communication that is being sent to the PLC and accept the commands sent from a processor. PLC I/O modules can also be used to detect processing errors, run system reports and manage the flow of data.

The type of PLC I/O modules used by a PLC depends on variant of input device and are categorised as input or output. PLCs can respond to digital or analogue inputs and output signals or combinations of the two. Digital inputs are either on/off, whereas analogue signal conditions are processed as a voltage. Other PLC I/O version include discrete, speciality and communication modules.

Kempston Controls stocks a wide range of PLC I/O modules from market leading manufacturers such as Allen Bradley, Schneider, Siemens and others designed to suit many applications. Give our dedicated sales team a call on +44 (0) 1933 411411 or use the contact form above to discuss your PLC I/O module requirements.