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Siemens 6ES7313-6BF03-0AB0 — PLCs (Programmable Logic Controllers)

Siemens 6ES7313-6BF03-0AB0 S7-300 CPU, FM 8

MPN6ES7313-6BF03-0AB0
End of Life

Siemens SIMATIC S7-300 CPU 313C-2 DP, 6ES7313-6BF03-0AB0, FM 8, 248 I/O each, FBD, LAD, SCL, STL, GRAPH, HiGraph, I2t 0.7 A²·s.

$644.49 – $1,365.00Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

6ES7313-6BF03-0AB0 — I/O
ParameterValue
Digital inputs16
Digital outputs16
ExpandableNo
Input data area248
Output data area248
6ES7313-6BF03-0AB0 — Processor & Memory
ParameterValue
Execution time, bit operations (typ.)0.1 µs
Execution time, word operations (typ.)0.2 µs
Execution time, floating-point arithmetic (typ.)3 µs
Size, max.256 byte
6ES7313-6BF03-0AB0 — Programming
ParameterValue
Programming language: FBDYes
Programming language: LADYes
Programming language: SCLYes
6ES7313-6BF03-0AB0 — Electrical
ParameterValue
Rated value (DC)24 V
Current consumption (rated)700 mA
Permissible range, lower limit (DC)20.4 V
Permissible range, upper limit (DC)28.8 V
Power loss (typ.)10 W
Short-circuit protectionYes; Clocked electronically
6ES7313-6BF03-0AB0 — Mechanical
ParameterValue
Width120 mm
Height125 mm
Depth130 mm
Weight (approx.)566 g
6ES7313-6BF03-0AB0 — Communication
ParameterValue
PROFINET CBANo
Interface typeIntegrated RS 422/ 485 interface

Product details

The Siemens 6ES7313-6BF03-0AB0 is a SIMATIC S7-300 CPU for medium-scale control. It programs in FBD, LAD, SCL, STL, GRAPH, or HiGraph — choose the tool that fits the sequence, not the other way around. The CPU addresses 248 inputs and 248 outputs, with space for 8 function modules (FM 8).

Thermal headroom and communication

The I2t rating of 0.7 A²·s sets the thermal limit for the internal power stage — keep that curve in mind if the cabinet ambient runs above 40 °C, because derating applies before the CPU trips. Two RS485 ports (RS 422/485 per X.27) serve the MPI/DP network; note that MPI is not native on this version, so an HMI needs a CP. ASCII serial is available for simple peripheral links.

Frequently asked questions

What is the FM rating of the 6ES7313-6BF03-0AB0?

FM 8 — the CPU supports up to 8 function modules for application-specific signal processing.

Does the CPU support FBD programming?

Yes, FBD is supported along with LAD, SCL, STL, GRAPH, and HiGraph.

What is the I2t rating and why does it matter?

I2t is rated 0.7 A²·s, which defines the thermal withstand of the internal power circuit. It governs derating at elevated ambient temperatures.

MPN
6ES7313-6BF03-0AB0