purchase of plc hardware ( 5 set ) - plc harware ( for details kindly refer tender document ) 1. plc / rtu controller shall be high performance processors with modular configuration, high reliability, self-diagnostic facilities, and watchdog timers to identify faults at card levels. 2. the size of plc / rtu controller memory shall be sufficient for storage of the program instructions required by the logic schemes. offer shall indicate the amount of memory occupied by the actual program & spare capacity of 50% available for later program modifications or additions. 3.plc / rtu controller memory shall be non-volatile. however, in case volatile memory is provided, battery backup shall be provided for a minimum of one ( 1 ) months to keep the stored program intact. 4.supplier shall provide each sets with minimum 16 – digital inputs, 16 – digital outputs, 02 – analog inputs ( 4-20ma ) and 02- analog outputs ( 4-20ma ) 5.minimum discrete i / o processor capacity: 512 i / o for single-rack configuration, minimum analogue i / o processor capacity: 64 i / o for single-rack configuration. 6.plc programming software + programming accessories are required for proposed plc hardware. 7.vendor will provide minimum 12 months warranty from the date of delivery of supplied items.supplier shall supply, at its own expense, all consumables required for use through the warranty period. 8.the specifications contains minimum hardware requirement. however, the bidder shall provide hard ware with configuration equal or above to meet the technical, functional & performance requirement. any hardware / software that are required to meet functional, performance & availability requirement shall be provided by bidder & the same shall be mentioned in the boq at the time of bid. 9.the proposed system shall be designed for an open & scalable configuration, to ensure the inter compatibility with other systems of the utility, the future smooth expansion as well as the easy maintainability. n10 enclosure / panel: all 05 ( five ) sets shall have separate enclosures fully wired and as small as possible to move / shift inside the lab. enclosure shall have power supply, processor, memory card ( for program memory ) , i / o cards, io connectors, terminals, mcb’s, relay card with individual relay and status led, mounting accessories etc n