Skip to main content
Log in
Siemens 6ES7516-3UN00-0AB0 — PLCs (Programmable Logic Controllers)

Siemens 6ES7516-3UN00-0AB0 CPU 1516TF-3 PN/DP, 32 kB I/O, 24 W

MPN6ES7516-3UN00-0AB0
NRND

Siemens 6ES7516-3UN00-0AB0 — now in phase-out and being discontinued. Supplied from remaining channel stock; full specifications, lifecycle and same-series options are below.

$3,957.32Ref. price · indicative, final on quote
Siemens 6ES7516-3UN00-0AB0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jun 2026

Specifications

6ES7516-3UN00-0AB0 — Processor & Memory
ParameterValue
Execution time, bit operations (typ.)6 ns
Execution time, word operations (typ.)7 ns
Execution time, floating-point arithmetic (typ.)37 ns
Size, max.16 kbyte
6ES7516-3UN00-0AB0 — I/O
ParameterValue
Input data area32 kbyte; All inputs are in the process image
Output data area32 kbyte; All outputs are in the process image
6ES7516-3UN00-0AB0 — Programming
ParameterValue
Programming language: FBDYes; incl. failsafe
Programming language: LADYes; incl. failsafe
Programming language: SCLYes
6ES7516-3UN00-0AB0 — Electrical
ParameterValue
Rated value (DC)24 V
Current consumption (rated)1.2 A
Permissible range, lower limit (DC)19.2 V
Permissible range, upper limit (DC)28.8 V
Power loss (typ.)24 W
6ES7516-3UN00-0AB0 — Environmental
ParameterValue
Installation altitude, max.5 000 m; Restrictions for installation altitudes > 2 000 m, see manual
Temperature, min.-40 °C
Temperature, max.70 °C
Operating temperature, min. (horizontal mounting)0 °C
Operating temperature, max. (horizontal mounting)60 °C; Display: 50 °C, at an operating temperature of typically 50 °C, the display is switched off
6ES7516-3UN00-0AB0 — Mechanical
ParameterValue
Width175 mm
Height147 mm
Depth129 mm
Weight (approx.)1 929 g

Product details

Overview

The CPU 1516TF-3 PN/DP is a Siemens PLC processor, order code 6ES7516-3UN00-0AB0, with a 32 kbyte input and 32 kbyte output process image, one PROFINET port, and an RS-485 interface on X3. The module consumes 24 W and measures 175 mm wide by 147 mm high by 129 mm deep.

Applications

As a Siemens CPU 1516TF-3 PN/DP processor, it serves as the central controller in machine and process automation, coordinating distributed I/O on packaging lines, conveyor systems, and material-handling cells.

The 32 kbyte input and output process image accommodates medium-to-large control programs, while the single PROFINET port provides deterministic networking for I/O and programming. Built-in RS-485 and MODBUS TCP support legacy serial devices and third-party equipment integration without additional modules.

MPN
6ES7516-3UN00-0AB0