Siemens 6FC5311-0AA00-0AA0 SINUMERIK PP 72/48D PN Digital I/O Module

Overview

SINUMERIK • PROFINET MACHINE I/O

6FC5311-0AA00-0AA0 SINUMERIK PP 72/48D PN Digital I/O Module

PROFINET peripheral module with 72 digital inputs and 48 digital outputs for SINUMERIK machine control.

At a Glance

Brand	Siemens
Model	6FC5311-0AA00-0AA0
Product Type	Digital I/O peripheral module
Core Function	CNC machine signal connection
Compatible Series	SINUMERIK

Dense machine I/O

Seventy-two inputs and forty-eight outputs connect machine signals through three ribbon-cable connectors.

PROFINET connection

X2 provides ports 1 and 2, while S1 sets the PROFINET address.

Separate load supply

Digital-output loads use an additional 24 V DC supply apart from the module’s X1 connection.

Product Overview

6FC5311-0AA00-0AA0 is the SINUMERIK PP 72/48D PN peripheral module for digital machine signals. It connects to the CNC system over PROFINET and provides separate connectors for the machine’s input and output wiring.

The module and digital inputs require 0.7 A at 24 V DC, while output loads require their own supply connections. Its open IP00 construction belongs inside a suitable protective enclosure.

Ordering focus: Plan the PROFINET address, three I/O connector groups and separate digital-output power wiring before installation.

Key Functions

Machine signal acquisition

The module provides 72 digital inputs for the CNC machine’s discrete signals.

Digital load control

Forty-eight digital outputs are distributed across X111, X222 and X333 with separately supplied load groups.

PROFINET station integration

Two X2 ports provide the network connections, and the S1 DIP switch selects the module address.

Official Specifications

Rated supply voltage	24 V DC
Digital input channels	72
Digital output channels	48
Maximum active power consumption	17 W
Module and input supply current	0.7 A at 24 V DC
Digital-output supply capacity	3 groups of 4 A; 1 A maximum per DOCOM pin
PROFINET connection	X2 with ports 1 and 2
Digital I/O connections	3 ribbon-cable connectors: X111, X222 and X333
Degree of protection	IP00
Operating temperature	0–55 °C
Storage and transport temperature	−40–70 °C
Relative humidity at 25 °C	5–95%, without condensation
Dimensions	150 × 300 × 35 mm
Net weight	0.9 kg

Official source:Siemens NCU 7x0.3 PN equipment manual.

Frequently Asked Questions

Do the outputs of 6FC5311-0AA00-0AA0 need a separate power supply?

The digital outputs require an additional 24 V DC supply through the DOCOM connections on X111, X222 and X333.

How should I connect the four DOCOM pins when wiring 6FC5311-0AA00-0AA0?

Connect the output supply to all four DOCOM pins in each group so that no individual pin carries more than 1 A.

Which terminals feed the electronics of 6FC5311-0AA00-0AA0?

The X1 screw-terminal block provides P24, M and PE for the external 24 V DC connection.

How do I select the PROFINET address for 6FC5311-0AA00-0AA0?

Set the module address with the S1 DIP switch.

Can I use analog sensors directly on 6FC5311-0AA00-0AA0?

This digital-only variant provides 72 digital inputs and 48 digital outputs rather than analog channels.

How much current should I budget before adding output loads to 6FC5311-0AA00-0AA0?

The module and digital inputs require 0.7 A at 24 V DC before the separate output-load current is added.

May I install 6FC5311-0AA00-0AA0 without a protective enclosure?

Its IP00 construction requires installation within a suitable protective enclosure.

Compatibility & Ordering Notes

Before ordering 6FC5311-0AA00-0AA0: Select the digital-only PP 72/48D PN, prepare the X2 network links and arrange X1 electronics power plus the separate DOCOM load supplies.

Machine wiring preparation

• Connect machine signals through X111, X222 and X333.
• Set the S1 address for the intended PROFINET station.
• Provide a safely separated 24 V DC supply and common grounding.
• Wire all four supply pins per DOCOM group and respect the 1 A pin limit.

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