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Communications module CM PtP RS422/485 BA (6ES7540-1AB01-0AA0), CM PtP
RS422/485 HF (6ES7541-1AB01-0AB0)
SIMATIC
S7-1500/ET 200MP
Communications module
CM PtP RS422/485 BA
(6ES7540‑1AB01‑0AA0),
CM PtP RS422/485 HF
(6ES7541‑1AB01‑0AB0)
Equipment Manual
06/2024
A5E03777484-AB
Preface
S7-1500/ET 200MP
Documentation Guide
Product overview
Connecting
Configuring/address space
Programming
Interrupts/diagnostic
messages
Technical specifications
Dimensional drawing
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Table of Contents
Related Manuals for Siemens 6ES7541-1AB01-0AB0
Summarization of Contents
Legal information
Legal information and safety notices
Covers warning notice system, qualified personnel, proper use, trademarks, and liability disclaimer.
Preface
Purpose and conventions
Explains the documentation's purpose, conventions, and notes.
Document history
Details changes and revisions in the manual editions.
Security information
Information on industrial cybersecurity and customer responsibilities.
Open Source Software
Details on the use and licensing of open-source software in the product firmware.
S7-1500/ET 200MP Documentation Guide
Documentation overview and resources
Explains the documentation structure, basic and device information, and download links.
SIMATIC Technical Documentation
Details on accessing and retaining SIMATIC technical documentation and online support.
Tool support
Information on planning and configuration tools like TIA Selection Tool and SINETPLAN.
Product overview
Module properties and article numbers
Lists article numbers, notes on compatibility, and firmware version for the modules.
Module view and accessories
Visual overview of the module, its components, and supplied accessories.
Module functions and protocols
Describes data exchange capabilities, transmission rates, and supported protocols.
RS422/485 interface properties
Defines the RS422/485 interface, its signals, transmission rates, and cable length.
Connecting
RS422/485 interface terminal assignment
Details the pin assignment for the 15-pin D-sub socket of the communication module.
Schematic circuit diagram
Illustrates the circuit diagram for operation at the RS422/485 connection, including isolation.
Installation guidelines
Provides installation notes, including terminating resistors, and links to further resources.
Configuring/address space
Module configuration and system environments
Explains how to configure the module in different system environments using STEP 7 and GSD files.
Hardware Support Packages and GSD files
Information on obtaining and using HSPs and GSD files for configuration.
Parameter setting for Freeport protocol
Lists programmable parameters and their value ranges for the Freeport protocol.
Parameter setting for 3964(R) protocol
Lists programmable parameters and their value ranges for the 3964(R) protocol.
Using GSD file for PROFIBUS DP and additional info
Instructions for using GSD files with PROFIBUS DP and links to further programming information.
Address space and CPU STOP reaction
Defines address space sizes and how the module reacts when the CPU enters STOP mode.
Programming
Data communication types and instructions
Explains asynchronous and synchronous data exchange and lists relevant PtP communication instructions.
USS and MODBUS instructions
Details on USS and MODBUS instructions available in STEP 7 for communication.
Interrupts/diagnostic messages
Status and error LED displays
Explains the meaning of the RUN, ERROR, MAINT, TXD, and RXD LEDs on the module.
Diagnostic alarms and interrupts
How to enable diagnostic interrupts and the CPU's reaction to them.
Diagnostics via EventTracePtP
Describes how diagnostic messages are displayed and remedies for common errors.
Technical specifications
General and engineering specifications
Covers product designation, function, I&M data, engineering versions, and supply details.
Interface and protocol specifications
Details transmission rates, cable lengths, telegram lengths, and supported protocols.
Ambient conditions, dimensions, and weights
Specifies operating temperature, installation altitude, dimensions, and weight of the module.
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