Modicon M238 PLC uses SoMachine software, which embeds intelligence in four primary hardware platforms. It also adds an embedded high-speed counter (HSC) for counting pulses and update outputs, regardless of the scan time of the application; one CANopen master to manage 16 devices that is open to third-party devices; up to eight HSCs (100 KHz) and up to seven expansion modules (up to 248 digital I/Os, up to 56 analog I/Os).