Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Product type | CPU 1518F-4 PN/DP MFP |
| Supply voltage | 24 V DC rated; 19.2 V to 28.8 V DC permissible |
| PROFINET interfaces | 3 |
| PROFIBUS interfaces | 1 |
| Bit operation time | 1 ns typical |
| Program work memory | 9 Mbyte |
| Data work memory | 60 Mbyte |
| Required SIMATIC Memory Card | Yes; at least 2 GB |
| Safety performance level | PLe according to ISO 13849-1 |
| Safety integrity level | SIL 3 according to IEC 61508 |
Applications
- PROFINET I/O communication: The CPU supports PROFINET IO Controller and PROFINET IO device communication, including PROFINET IRT on the first interface.
- PROFIBUS communication: The integrated PROFIBUS DP master supports up to 125 DP devices and up to 48 connections.
Key Features
- Fail-safe CPU bundle: CPU 1518F-4 PN/DP MFP with C/C++ Runtime and OPC UA Runtime licenses.
- PROFINET and PROFIBUS interfaces: 3 PROFINET interfaces and 1 PROFIBUS interface; the first interface has PROFINET IRT with a 2-port switch.
- Processing performance: Bit operations: 1 ns typical; word operations and fixed point arithmetic: 2 ns typical; floating point arithmetic: 6 ns typical.
- Work memory: 9 Mbyte for the program, 60 Mbyte for data, 50 Mbyte for the CPU function library, and 1 024 Mbyte for a C/C++ Runtime application.
- Electrical supply: Rated supply voltage: 24 V DC; permissible range: 19.2 V to 28.8 V DC; reverse polarity protection is provided.
- Safety capability: Performance level PLe according to ISO 13849-1 and SIL 3 according to IEC 61508 in safety mode.
Frequently Asked Questions
1. How many PROFINET and PROFIBUS interfaces does 6ES7518-4FX00-1AC0 have?
It has 3 PROFINET interfaces and 1 PROFIBUS interface. The first PROFINET interface provides PROFINET IRT with a 2-port switch.
2. What supply voltage does the CPU require?
The rated supply voltage is 24 V DC, with a permissible range of 19.2 V to 28.8 V DC.
3. How much work memory is available?
The CPU has 9 Mbyte for the program and 60 Mbyte for data. It also has 50 Mbyte for the CPU function library and 1 024 Mbyte for a C/C++ Runtime application.
4. Is a SIMATIC Memory Card included in the CPU Bundle?
The SIMATIC Memory Card is required, and the card must have at least 2 GB of space on it.
5. What installation dimensions and weight should be verified before inquiry?
The CPU dimensions are 175 mm width, 147 mm height, and 129 mm depth. Weight is approximately 2 093 g.
