Siemens 6ES7194-4CB00-0AA0 SIMATIC ET 200pro CM IO 8xM12 Connection Module

Overview

SIEMENS SIMATIC ET 200pro

6ES7194-4CB00-0AA0 SIMATIC ET 200pro CM IO 8xM12 Connection Module

A removable digital-I/O connection front with eight five-pin M12 sockets, individual port identification and module-dependent sensor or actuator pin assignments.

At a Glance

Brand	Siemens
Model	6ES7194-4CB00-0AA0
Product Type	CM IO connection module
Core Function	Connects field sensors and actuators to the electronics
Application	Compatible ET 200pro digital I/O modules

Eight field connectors

The connection front provides ports X1 through X8.

Removable front assembly

The front plugs into the electronics module and is secured with screws.

Electronics-dependent pinout

The connected I/O module determines how the field pins are assigned.

Product Overview

6ES7194-4CB00-0AA0 provides the M12 field-wiring front for compatible ET 200pro digital electronic modules.

The same connection front supports the listed eight-input, eight-output and mixed four-input/four-output modules, with the correct pin assignment selected for the installed electronics.

Ordering focus: Match the ordinary CM IO 8xM12 front to the electronics module and its pin assignment, rather than substituting the M12D or another connector variant.

Key Functions

Connect the digital field cables

Eight five-pin M12 sockets carry the field connections, using a pin assignment determined by the digital electronics module.

Identify each field connection

Eight labels and one module identification tag support port and module identification.

Retain an accessible connection front

The front plugs into the electronics and is secured by screws, allowing the field-connection assembly to be removed for the prescribed service procedure.

Official Specifications

Field-Connector Arrangement	Eight five-pin M12 circular sockets, X1–X8
Cable Construction for Self-Assembled Leads	Two-, three-, four- or five-wire flexible copper cable
Maximum Cable Conductor Cross-Section	0.75 mm²
Port Labels	Eight individual labels and one module identification tag
Connection-Front Attachment	Plug-in connection secured by screws
Specified Indoor Operating Temperature	−25 to +55 °C
Overall Dimensions	45 × 130 × 39 mm (W × H × D)
Approximate Weight	305 g

Official source:Siemens CM IO Data Sheet · Siemens ET 200pro System Manual

Frequently Asked Questions

Which eight-input electronics can I use behind 6ES7194-4CB00-0AA0?

The listed input options include 6ES7141-4BF00-0AA0 and the High Feature version 6ES7141-4BF00-0AB0.

Can 6ES7194-4CB00-0AA0 be used with the ET 200pro eight-output electronics?

The connection front is listed for digital output module 6ES7142-4BF00-0AA0.

Does every pin on 6ES7194-4CB00-0AA0 have the same function with every digital I/O module?

The pin assignment depends on the installed electronic module.

Which pins carry a sensor connection on 6ES7194-4CB00-0AA0 with the listed eight-input modules?

Pin 1 carries sensor supply, pin 3 carries sensor common, pin 4 carries the channel input and pin 5 carries functional earth.

What changes on 6ES7194-4CB00-0AA0 when I use the eight-output electronics?

Pin 4 carries the channel output, pin 3 is load-supply common and pin 5 is functional earth, while pins 1 and 2 are unassigned.

Which cables can I prepare myself for 6ES7194-4CB00-0AA0?

Use a five-pin M12 connector with two to five flexible copper conductors no larger than 0.75 mm².

What should I do before rewiring the field connections on 6ES7194-4CB00-0AA0?

Switch off the supply voltage or remove the connection module before starting the wiring work.

Compatibility & Ordering Notes

Before ordering 6ES7194-4CB00-0AA0: Select the eight-M12 connection front with the matching digital electronics module, correctly assigned field cables and port identification.

Compatibility Checklist for 6ES7194-4CB00-0AA0

• Use the listed eight-input, eight-output or mixed four-input/four-output electronics.
• Apply the exact electronics-specific pinout to every M12 lead.
• Keep the ordinary M12 front distinct from M12D and other connection-front variants.
• Use five-pin M12 connectors and conductors within the specified cross-section.
• Identify the X1–X8 connections and the module tag during installation.
• Switch off the supply or remove the front before rewiring.

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