Seven standard CPUs with graded performance are available for the SIMATIC S7-1500:
CPU 1511-1 PN: 6ES7511-1AK02-0AB0 - 150KB WORK, 1MB DATA, For smaller applications with medium requirements regarding the program scope and processing speed, for distributed setup via PROFINET IO.
CPU 1513-1 PN: 6ES7513-1AL02-0AB0 - 300KB WORK, 1.5MB DATA, For applications with medium requirements on the program scope and processing speed, for distributed setup via PROFINET IO.
CPU 1515-2 PN:6ES7515-2AM01-0AB0 - 500KB WORK, 3MB DATA, For applications with medium/high requirements on the program scope, networking and processing speed, for distributed setup via PROFINET IO. The second PROFINET interface with separate IP address can be used for connecting further PROFINET IO RT devices, for high-speed communication as an I-Device, or for network separation.
CPU 1516-3 PN/DP: 6ES7516-3AN01-0AB0 – 1MB WORK, 5MB DATA, For applications with high requirements regarding program scope, networking and processing speed, for distributed setup via PROFINET IO and PROFIBUS DP. The second PROFINET interface with separate IP address can be used for connecting further PROFINET IO RT devices, for high-speed communication as an I-Device, or for network separation.
CPU 1517-3 PN/DP: 6ES7517-3AP00-0AB0 – 2MB WORK, 8MB DATA, For applications with very high requirements regarding program scope and networking, and for very high requirements regarding processing speed, for distributed setup via PROFINET IO and PROFIBUS DP. The second PROFINET interface with separate IP address can be used for connecting further PROFINET IO RT devices, for high-speed communication as an I-Device, or for network separation.
CPU 1518-4 PN/DP: 6ES7518-4AP00-0AB0 - 4MB WORK, 20MB DATA, For applications with extremely high requirements regarding program scope and networking, and for maximum requirements regarding processing speed. For distributed configuration via PROFINET IO and PROFIBUS DP. The PROFINET interface X2 can be used for connecting additional PROFINET IO RT devices or for fast communication as an I-device. The PROFINET interface X3 facilitates data transfer at a speed of 1 Gbps. The two additional integrated PROFINET interfaces with separate IP address can be used for network separation, for example.
CPU 1518-4 PN/DP ODK: 6ES7518-4AP00-3AB0 - 4MB WORK, 20MB DATA, For applications with very high requirements regarding program scope, networking and processing speed and for maximum requirements regarding processing speed. For distributed configuration via PROFINET IO and PROFIBUS DP. The PROFINET interface X2 can be used for connecting additional PROFINET IO RT devices or for fast communication as an I-device. The PROFINET interface X3 facilitates data transfer at a speed of 1 Gbps. The two additional integrated PROFINET interfaces with separate IP address can be used for network separation, for example. The CPU 1518-4 PN/DP ODK allows the execution of functions created with the high-level language C/C++.
CPU 1518-4 PN/DP MFP: 6ES7518-4AX00-1AC0 - 4MB WORK, 20MB DATA, For applications with very high requirements regarding program scope, networking and processing speed and for maximum requirements regarding processing speed. For distributed configuration via PROFINET IO and PROFIBUS DP. The PROFINET interface X2 can be used for connecting additional PROFINET IO RT devices or for fast communication as an I-device. The PROFINET interface X3 facilitates data transfer at a speed of 1 Gbps. The two additional integrated PROFINET interfaces with separate IP address can be used for network separation, for example.