We stock Telemecanique TSX27. This compact PLC system was intended for medium sized applications, when it was introduced, and it comes in sizes ranging from 20 I/O all the way up to 80 I/O. We sell these complete with I/O in accordance to the part numbers when they were manufactured, buy we also sell the CPU/PSU-part separately, see TSX27-20 (contact us if it's sold out).