Plant control & automation technologies manufactures intelligent programme logic controllers [plcs]. These feature removable lcd panel, which is used for programming and monitoring. One lcd panel can monitor more than one controllers leading to its cost-effectiveness. Specifications of the program logic controller: there are 2 models, one with 10 and the other with 20 i/os. All inputs can be either analogue or mixed. Relay or transistor outputs are also available. Output relays are rated for 10 a. Controllers are din rail/surface mounted with maximum size of 126 [w] x 90 [h] x 58 [d] mm. Even though mini in size, the controllers have state-of-the-art technolgy, featuring 127 timers, 127 counters, 127 internal relays, real time clock function, telephone connectivity, voice warning networking, etc. Controllers operate on 85-260 v ac, 12 v/24 v dc. While programming does not need any software, programming software is provided additionally which also is used for emulation. Rs 485 interface is available.