SCADA DATA ACQUISTION MODULE Project Guide: M. Srinivas Group 6

Project Definition & Scope Gets the data from a field device (RTU) in digital form (bytes) Gets the data from a field device (RTU) in digital form (bytes) A convenient protocol agreed upon by both RTU and MTUA convenient protocol agreed upon by both RTU and MTU

Project Definition & Scope MTU (Master terminal unit)(Remote terminal unit) Serial Port Comm INTERFACEINTERFACE RTU INTERFACEINTERFACE Common Protocol

Work Done Worked on serial port programming Worked on serial port programming Problems with RS232 programmingProblems with RS232 programming Design implementation on LAN Design implementation on LAN RTU simulator RTU simulator Completed analog and digital request and response Completed analog and digital request and response

Protocol Request Packet from MTU Request Packet from MTU Start Byte RTU number Request CRC Request Types 1- Analog 2- Contacts 3– Health 4- Ack for Cont

Protocol (cont…) Response to Analog Request Response to Analog Request Start Byte RTU no Analog 1 Analog Analog 14 CRC Length Time Stamp(2bytes)

Protocol (cont…) Response to Digital Request Response to Digital Request Start Byte RTU no Contact add (1–15) Status (0/1).... CRC Contact add (1–15) Status (0/1) Length Time Stamp (2 bytes)

Results

Work Remaining Embedding serial port programming into the code written Embedding serial port programming into the code written Implementation of control command Select/Check/Execute Implementation of control command Select/Check/Execute Health Check Health Check

Thank you Group Members: Aravind Hemanth Sandeep Reddy Sireesh Reddy Venkat