The Siemens 6ES7516-3FP03-0AB0 is the CPU 1516F-3 PN/DP central processing unit from the SIMATIC S7-1500F fail-safe automation family. It includes three integrated interfaces: PROFINET IRT with a 2-port switch (X1), PROFINET RT (X2), and PROFIBUS DP (X3).
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6ES7516-3FP03-0AB0Order(MOQ) :
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3kg| Specification | Description |
|---|---|
| Manufacturer | Siemens |
| Model | 6ES7516-3FP03-0AB0 |
| Product Family | SIMATIC S7-1500F |
| Product Type | CPU 1516F-3 PN/DP Fail-Safe Central Processing Unit |
| Work Memory | 3 MB for program; 7.5 MB for data |
| Load Memory | SIMATIC Memory Card, max. 32 GB (required) |
| Processing Times | Bit: 6 ns; Word: 7 ns; Fixed-point: 9 ns; Floating-point: 37 ns |
| Interfaces | 3 x PROFINET (X1 with 2-port switch, X2, X3); 1 x PROFIBUS DP |
| Safety Certification | SIL 3 (IEC 61508), PL e (ISO 13849-1) |
| Safety Protocol | PROFIsafe V2.4 / V2.6 |
| PROFINET IO Controller | Yes; up to 256 IO devices (64 in IRT mode) |
| PROFIBUS DP | DP Master only (up to 125 DP slaves) |
| Supply Voltage | 24 V DC (19.2 – 28.8 V) |
| Current Consumption | 0.87 A rated; 1.08 A max. |
| Power Loss | Typ. 4 W |
| Dimensions | 35 mm x 147 mm x 129 mm (approx.) |
| Weight | Approx. 400 g |
| Engineering Software | STEP 7 TIA Portal V18 (FW V3.0); older versions configurable as 6ES7516-3FN02-0AB0 |
| Firmware Version | V3.0 / V4.0 available |
| Model | Description | Typical Application |
|---|---|---|
| 6ES7516-3FP03-0AB0 (this model) | CPU 1516F-3 PN/DP, 3 MB/7.5 MB, fail-safe | Mid-range safety + standard control |
| 6ES7516-3FN01-0AB0 | Predecessor CPU 1516F-3 PN/DP (1.5 MB/5 MB) | Legacy replacement (3FP03 is the successor) |
| 6ES7516-3FN02-0AB0 | Interim CPU 1516F-3 PN/DP (for older TIA Portal versions) | Configurable as this type in TIA V16/V17 |
| 6ES7517-3FP00-0AB0 | CPU 1517F-3 PN/DP, higher memory | Higher-performance safety applications |
| 6ES7518-4FP00-0AB0 | CPU 1518F-4 PN/DP, 9 MB/60 MB, fail-safe | Highest-performance safety applications |
| 6AG2516-3FP03-4AB0 | SIPLUS version with conformal coating, -40…+70°C | Harsh environments requiring wide temperature range |
| 6ES7954-8Lxxxx-0AA0 | SIMATIC Memory Card | Required for CPU operation |
Q1: What is the primary function of the 6ES7516-3FP03-0AB0?
It is a fail-safe CPU in the SIMATIC S7-1500F family, designed for both standard control and safety-related control (emergency stop, safety door monitoring, etc.) in a single device. It is certified up to SIL 3 / PL e, making it suitable for demanding safety applications in manufacturing and process industries.
Q2: What TIA Portal version is required to program this CPU?
The CPU 1516F-3 PN/DP requires STEP 7 TIA Portal V18 (for firmware V3.0) or higher. For older TIA Portal versions (V16/V17), the CPU can be configured as 6ES7516-3FN02-0AB0, but users have reported loading errors when attempting this approach. It is recommended to use TIA Portal V18 or higher for full compatibility.
Q3: Does this CPU require a SIMATIC Memory Card?
Yes. The CPU 1516F-3 PN/DP requires a SIMATIC Memory Card for operation. The card serves as the load memory and is essential for program storage and data management. Maximum supported capacity is 32 GB.
Q4: What are the key communication interfaces?
The CPU provides three PROFINET interfaces: X1 with a 2-port switch supporting IRT and RT, X2 for general communication (HMI, programming), and X3 for PROFIBUS DP Master (up to 125 slaves). The CPU supports PROFIsafe V2.4/V2.6 for safety communication, OPC UA Server (runtime license required), MRP (200 ms switchover time), and S7 routing.
Q5: What are the common causes of "No valid F address available" errors?
Common causes include:
Missing F-coding element: For S7-1500 fail-safe modules, the F-coding element must be plugged between the module and front connector to store F-parameters. If missing, parameters cannot be assigned.
Protection level configuration: If the project uses a predecessor CPU type (e.g., 3FN02) while the actual hardware is 3FP03, and protection levels are configured, the F-address assignment may fail. Change to "full access including failsafe" temporarily, compile, download, then re-add protection levels.
Firmware/configuration mismatch: Ensure the TIA Portal project matches the actual CPU firmware version.
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