SIMATIC S7-1500, CPU 1518-4 PN/DP MFP, INCLUSIVE C/C++ RUNTIME AND OPC UA RUNTIME LICENSE WORKING MEMORY 4 MB FOR PROGRAM AND 20 MB FOR DATA, 1. INTERFACE: PROFINET IRT WITH 2 PORT SWITCH, 2. INTERFACE: PROFINET RT, 3. INTERFACE: ETHERNET, 4. INTERFACE: PROFIBUS, 1 NS BIT-PERFORMANCE, SIMATIC MEMORY CARD (min. 2 GB) NECESSARY