This paper is an RTOS based architecture designed for the purpose of data transmission between two controlling units through IWSN without data collision. RTOS is an OS which will create a platform between hardware and application. Here, stack is the one which is used to avoid the independency of the layers from one with another inside the protocol comes under the standard IEEE802.15.4. We are using the IEEE 802.15.4 to reduce the collision, timing integrity and extra traffic caused by the inter layer interaction in large industries with multi processor support.