Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Product type | CPU 1518-4 PN/DP |
| Supply voltage | 24 V DC; permissible range 19.2 V to 28.8 V DC |
| PROFINET interfaces | 3 |
| PROFIBUS interfaces | 1 |
| RJ 45 ports | 2 on X1; 1 on X2; 1 on X3 |
| PROFIBUS DP master connections, max. | 48 |
| PROFIBUS DP devices, max. | 125 |
| PROFINET IO devices, max. | 512; for the first interface configuration |
| Bit operation processing time, typ. | 1 ns |
| Integrated data memory | 60 Mbyte |
| Load memory, max. | 32 Gbyte via plug-in SIMATIC Memory Card |
Applications
- PROFINET communication: Acts as a PROFINET IO Controller or IO device for exchanging data with PROFINET devices.
- PROFIBUS communication: Acts as a PROFIBUS DP master for communication with DP devices.
- Open industrial Ethernet communication: Supports TCP/IP, ISO-on-TCP, UDP and OPC UA data communication.
Key Features
- Communication interfaces: 3 PROFINET interfaces and 1 PROFIBUS interface; the first PROFINET interface has a 2-port switch, while X2 and X3 each have 1 RJ 45 port.
- Protocols and services: Supports PROFINET IO Controller and IO device, PROFIBUS DP master, SIMATIC communication, Open IE communication, OPC UA, MODBUS TCP and Web server.
- Processing performance: Bit operations have a typical processing time of 1 ns; word operations and fixed point arithmetic are 2 ns typical, and floating point arithmetic is 6 ns typical.
- Supply and protection: Rated supply is 24 V DC with a permissible range of 19.2 V to 28.8 V DC and reverse polarity protection.
- Memory and card requirement: Has 20 MB for program, 60 Mbyte integrated data memory and a plug-in SIMATIC Memory Card with a maximum load memory of 32 Gbyte; the card is required.
- Diagnostics and engineering: Includes I&M0 to I&M3 data, a diagnostic buffer with up to 3 200 entries, RUN/STOP, ERROR and MAINT LEDs, and STEP 7 TIA Portal configuration from the specified entry ID.
Frequently Asked Questions
1. What communication interfaces does the Siemens 6AG1518-4AP00-4AB0 have?
It has 3 PROFINET interfaces and 1 PROFIBUS interface. X1 has 2 RJ 45 ports, while X2 and X3 each have 1 RJ 45 port; X4 is RS 485.
2. Which protocols are supported?
Supported protocols and services include PROFINET IO Controller, PROFINET IO device, PROFIBUS DP master, SIMATIC communication, Open IE communication, OPC UA and MODBUS TCP.
3. What supply voltage does this CPU require?
The rated supply is 24 V DC. The permissible supply range is 19.2 V to 28.8 V DC, with reverse polarity protection.
4. Is a SIMATIC Memory Card included in the configuration?
The CPU requires a SIMATIC Memory Card. The plug-in card is not specified as included; the maximum load memory is 32 Gbyte.
