Siemens SIMATIC S5 ET 200U 6ES5318-8MB13 IM 318-B PROFIBUS-DP Interface Module

Overview

SIEMENS · SIMATIC S5 ET 200U

6ES5318-8MB13 IM 318-B PROFIBUS-DP Interface Module

The 6ES5318-8MB13 IM 318-B is the station interface used to connect SIMATIC S5 ET 200U distributed I/O to a PROFIBUS-DP master system.

At a Glance

Brand	Siemens
Model	6ES5318-8MB13
Product Type	Distributed I/O slave interface module
Core Function	Connects an ET 200U station as a PROFIBUS-DP slave to the automation system
Application or Compatible Series	SIMATIC S5 ET 200U distributed I/O stations configured with COM ET 200

Exact Identification

Match 6ES5318-8MB13 character by character before replacement.

Interface Check

Confirm the installed supply, terminals, network and field wiring.

Project Backup

Preserve the validated configuration and application data before exchange.

Product Overview

The 6ES5318-8MB13 IM 318-B is the station interface used to connect SIMATIC S5 ET 200U distributed I/O to a PROFIBUS-DP master system.

The interface module couples the modular ET 200U station to the fieldbus. The station exchanges cyclic process data with the configured DP master. Station parameters and I/O mapping are established through the COM ET 200 engineering workflow.

Ordering focus: confirm the full IM 318-B article number, hardware revision, DP bus profile, station address and COM ET 200 project.

Key Functions

ET 200U Bus Interface

The interface module couples the modular ET 200U station to the fieldbus.

PROFIBUS-DP Slave Operation

The station exchanges cyclic process data with the configured DP master.

Legacy Project Integration

Station parameters and I/O mapping are established through the COM ET 200 engineering workflow.

Official Specifications

Module Designation	IM 318-B
System Platform	SIMATIC S5 ET 200U
Network Role	PROFIBUS-DP slave interface
Fieldbus Family	SINEC L2-DP / PROFIBUS-DP
Maximum ET 200U Bus Rate	1.5 Mbit/s
Configuration Software	COM ET 200
Station Addressing	Configured PROFIBUS station number
Process Data Exchange	Cyclic distributed I/O data
Module Position	Left-hand station interface position
I/O Integration	Modular ET 200U input and output modules
Commissioning Requirement	Matching master and slave bus profile
Replacement Basis	Exact interface revision and saved station configuration

Official source:Siemens technical data for 6ES5318-8MB13.

Frequently Asked Questions

What station type uses 6ES5318-8MB13?

It is used as the bus interface of a SIMATIC S5 ET 200U distributed I/O station.

Which network connects to 6ES5318-8MB13?

The module operates as a slave on the configured PROFIBUS-DP system.

Which engineering tool is associated with 6ES5318-8MB13?

The legacy station is configured and mapped with COM ET 200.

What must match when replacing 6ES5318-8MB13?

The interface revision, bus profile, station address and I/O configuration must match the installed project.

Where is 6ES5318-8MB13 installed in the station?

Fit it in the designated interface position at the left end of the ET 200U assembly.

What should be saved before removing 6ES5318-8MB13?

Retain the COM ET 200 configuration, address map and master-system parameters.

What commissioning test is needed for 6ES5318-8MB13?

Confirm bus communication, station diagnostics and every mapped input and output byte.

Compatibility & Ordering Notes

Before ordering 6ES5318-8MB13: confirm the full IM 318-B article number, hardware revision, DP bus profile, station address and COM ET 200 project.

Compatibility Checklist

• Match the interface revision and configured PROFIBUS profile exactly.
• Preserve the original ET 200U module sequence and address map.
• Verify the DP master sees the station without configuration or diagnostic faults.

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