Siemens 6AG2243-5DX30-1XE0 CM 1243-5 RAIL Communication Module
Siemens 6AG2243-5DX30-1XE0 CM 1243-5 RAIL Communication Module
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Brand:Siemens Item No.:6AG2243-5DX30-1XE0 Product Origin: Germany Product Dimensions:30 × 100 × 75 mm Product Weight:134 g Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Siemens 6AG2243-5DX30-1XE0 SIPLUS S7-1200 CM 1243-5 RAIL provides a dedicated PROFIBUS DP master interface for S7-1200 controllers. It is designed for installations where distributed PROFIBUS devices must be integrated into an S7-1200 automation system without placing the communication workload entirely on the CPU.
As a DPV1 master, the module manages communication with PROFIBUS DP slaves and supports consistent transfer of distributed I/O data between the PROFIBUS network and the S7-1200 controller. Its 9-pin Sub-D RS-485 interface supports standard PROFIBUS transmission rates from 9.6 kbit/s to 12 Mbit/s.
The RAIL version is particularly suited to transportation and infrastructure applications where environmental conditions can be more demanding than those found in standard control cabinets. Conformal coating, railway-oriented qualification, and resistance to challenging environmental influences make it appropriate for applications involving vibration, condensation, corrosive atmospheres, and other industrial stresses.
From an installation perspective, the CM 1243-5 RAIL retains the compact S7-1200 single-width format. DIN rail and wall mounting options make it straightforward to incorporate into existing control panels, while dedicated diagnostics in STEP 7 support efficient commissioning and ongoing maintenance.
Technical Specifications
Specification
Details
Product Type
SIPLUS S7-1200 CM 1243-5 RAIL
Article Number
6AG2243-5DX30-1XE0
Base Product
Based on 6GK7243-5DX30-0XE0
Module Type
PROFIBUS Communication Module
System
SIMATIC S7-1200
Main Function
PROFIBUS DP Master
PROFIBUS Mode
DPV1
PROFIBUS Interface
1 × RS-485
PROFIBUS Connector
9-pin Sub-D female
Transmission Rate
9.6 kbit/s to 12 Mbit/s
Maximum DP Slaves
16
DP Input Address Area
Up to 512 bytes
DP Output Address Area
Up to 512 bytes
Power Supply
24 V DC external
Typical Current Consumption
Approx. 100 mA at 24 V DC
Typical Power Loss
Approx. 2.4 W
Engineering Software
STEP 7 / TIA Portal
Diagnostics
Module, connection, statistics, and alarm diagnostics
Environmental Protection
Conformal coating
Operating Temperature
-25 to +55 °C
Short-Duration Temperature
Up to +70 °C for 10 minutes
Storage / Transport Temperature
-40 to +70 °C
Maximum Installation Altitude
2000 m
Protection Rating
IP20
Mounting
35 mm DIN rail or wall mounting
Dimensions
30 × 100 × 75 mm
Weight
Approx. 134 g
Recommended Companion Models
Model
Product Name
6AG2242-5DX30-1XE0
SIPLUS S7-1200 CM 1242-5 RAIL PROFIBUS Communication Module
6AG2243-1BX30-1XE0
SIPLUS S7-1200 CP 1243-1 RAIL Ethernet Communication Processor
6AG2241-1CH32-1XB0
SIPLUS S7-1200 CM 1241 RS-422/485 RAIL Communication Module
6AG2241-1AH32-1XB0
SIPLUS S7-1200 CM 1241 RS-232 RAIL Communication Module
Frequently Selected Alternatives
Model
Product Name
6GK7243-5DX30-0XE0
SIMATIC S7-1200 CM 1243-5 PROFIBUS Communication Module
6AG1243-5DX30-2XE0
SIPLUS S7-1200 CM 1243-5 PROFIBUS Communication Module
6AG2242-5DX30-1XE0
SIPLUS S7-1200 CM 1242-5 RAIL PROFIBUS Communication Module
6AG2243-1BX30-1XE0
SIPLUS S7-1200 CP 1243-1 RAIL Ethernet Communication Processor
Where It Excels in Industrial Use
Integrating SIMATIC S7-1200 controllers into PROFIBUS DP fieldbus networks.
Railway automation systems requiring ruggedized communication hardware for harsh operating environments.
Distributed machine systems where PROFIBUS DP slaves need to be managed from an S7-1200 controller.
Transportation infrastructure and onboard or trackside control applications.
Industrial installations exposed to condensation, corrosive atmospheres, vibration, or other demanding environmental conditions.
Process and infrastructure systems using PROFIBUS-based distributed I/O.
Control cabinets where a compact single-width communication module is preferred.
Key Strengths at a Glance
Functions as a PROFIBUS DP master for SIMATIC S7-1200 automation systems.
Supports DPV1 communication for advanced PROFIBUS diagnostics and data exchange.
PROFIBUS transmission rates from 9.6 kbit/s up to 12 Mbit/s.
Provides a 9-pin Sub-D RS-485 interface for PROFIBUS network connection.
Supports connection of up to 16 PROFIBUS DP slaves.
Provides up to 512 bytes of input data and 512 bytes of output data in the DP address area.
Integrated diagnostics simplify commissioning, troubleshooting, and maintenance.
Conformal-coated SIPLUS RAIL construction is designed for demanding industrial and railway environments.
External 24 V DC supply and flexible DIN rail or wall mounting support practical cabinet integration.
Technical FAQs
1. What is the main purpose of the Siemens 6AG2243-5DX30-1XE0?
The 6AG2243-5DX30-1XE0 is a SIPLUS S7-1200 CM 1243-5 RAIL communication module that connects an S7-1200 controller to a PROFIBUS network and operates as a PROFIBUS DP master.
2. Which PROFIBUS operating mode does the CM 1243-5 RAIL support?
The module operates as a DPV1 master. It handles PROFIBUS DP communication independently, reducing the amount of communication processing that must be performed directly by the S7-1200 CPU.
3. What PROFIBUS transmission speeds are supported?
The PROFIBUS interface supports transmission rates from 9.6 kbit/s through 12 Mbit/s, allowing the module to be configured for different PROFIBUS network requirements.
4. What type of PROFIBUS connector is used?
The module uses one 9-pin Sub-D female connector with an RS-485 electrical interface for PROFIBUS communication.
5. How many PROFIBUS DP slaves can the CM 1243-5 RAIL manage?
The module can be used as a DP master for up to 16 PROFIBUS-compliant DP slaves, depending on the overall system configuration and connected devices.
6. What amount of PROFIBUS process data can be exchanged?
The module provides an address area of up to 512 bytes for DP input data and up to 512 bytes for DP output data when operating as a PROFIBUS DP master.
7. How is the CM 1243-5 RAIL configured?
The module is configured using STEP 7 within the TIA Portal engineering environment. PROFIBUS parameters, network configuration, connected DP devices, diagnostics, and communication settings can be managed through the engineering project.
8. Does the module provide diagnostic functions?
Yes. The CM 1243-5 RAIL provides diagnostic information covering operating status, general module diagnostics, communication connections, statistics, and alarm information. These functions help identify PROFIBUS and module-related problems during commissioning and operation.
9. What power supply does the 6AG2243-5DX30-1XE0 require?
The module uses an external 24 V DC power supply through its dedicated three-pole terminal connection. This distinguishes it from modules that rely solely on the S7-1200 backplane for operating power.
10. What environmental features are provided by the SIPLUS RAIL version?
The module features conformal coating and is designed for demanding railway and industrial environments. Its specified operating temperature is -25 to +55 °C, with short-duration operation up to +70 °C for 10 minutes under the applicable temperature conditions.
