Brand:Siemens Item No.:6AG1243-5DX30-2XE0 Product Origin:Germany Product Dimensions:30 × 100 × 75 mm Product Weight:0.134 kg 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 6AG1243-5DX30-2XE0 SIPLUS S7-1200 CM 1243-5 Communication Module is designed to provide PROFIBUS DP master connectivity for SIMATIC S7-1200 automation systems. Based on the standard 6GK7243-5DX30-0XE0 communication module, this SIPLUS version features conformal coating and an extended environmental specification for industrial applications.
Operating as a PROFIBUS DPV1 master, the module supports up to 16 DP slave devices and transmission rates from 9.6 kbit/s to 12 Mbit/s. Its RS-485 interface uses a 9-pin Sub-D connector, while a separate 24 V DC supply connection powers the module. It also supports S7 communication and connections to compatible programming devices and operator panels.
The 6AG1243-5DX30-2XE0 is suitable for distributed I/O systems, production machinery, and industrial installations that require reliable communication between an S7-1200 controller and PROFIBUS field devices. With STEP 7 configuration and integrated diagnostic capabilities, it provides a practical solution for expanding existing automation networks.
Technical Specifications
Parameter
Specification
Brand
Siemens
Model
6AG1243-5DX30-2XE0
Product Type
Communication Module
Product Designation
SIPLUS S7-1200 CM 1243-5
Base Product
6GK7243-5DX30-0XE0
Product Series
SIMATIC S7-1200
Communication Interface
PROFIBUS DP
Master Function
DPV1 Master
Maximum DP Slaves
16
Transmission Rate
9.6 kbit/s to 12 Mbit/s
Electrical Interface
RS-485
PROFIBUS Connector
9-pin Sub-D socket
Power Supply Connection
3-pole terminal block
External Supply Voltage
24 V DC
Permissible Supply Range
19.2–28.8 V DC
Typical Current Consumption
100 mA
Power Loss
2.4 W
Total Input Data Capacity
512 bytes
Total Output Data Capacity
512 bytes
Configuration Software
STEP 7 Basic / Professional V11 or higher
Conformal Coating
Yes
Operating Temperature
-25 to +45 °C (vertical); -25 to +55 °C (horizontal)
Protection Rating
IP20
Mounting
35 mm DIN Rail / Wall Mounting
Dimensions
30 × 100 × 75 mm
Weight
0.134 kg / 0.30 lb
Recommended Related Models
Model
Product Description
6GK7243-5DX30-0XE0
SIMATIC S7-1200 CM 1243-5 PROFIBUS DP Master Module
6AG1242-5DX30-2XE0
SIPLUS S7-1200 CM 1242-5 PROFIBUS Communication Module
6GK7242-5DX30-0XE0
SIMATIC S7-1200 CM 1242-5 PROFIBUS DP Slave Module
6AG1243-1BX30-2AX0
SIPLUS S7-1200 CP 1243-1 Ethernet Communication Processor
6AG1243-2AA30-7XB0
SIPLUS S7-1200 CM 1243-2 AS-Interface Master Module
These models provide different communication functions and network interfaces. The CM 1243-5 is specifically designed for PROFIBUS DP master operation and should not be replaced with a DP slave or Ethernet module without checking the system requirements.
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Check CPU compatibility, available module positions, firmware requirements, and network configuration before integrating these products into an existing S7-1200 system.
Applications
The Siemens 6AG1243-5DX30-2XE0 is a SIPLUS S7-1200 CM 1243-5 communication module designed to connect SIMATIC S7-1200 controllers to PROFIBUS networks as a DP master. It enables communication between the PLC and distributed field devices, other controllers, programming devices, and operator panels.
Typical application areas include:
Distributed I/O systems: Connects PROFIBUS DP slave devices to an S7-1200 controller for centralized automation.
Machine automation: Supports communication with remote I/O stations, drives, and compatible field equipment.
Production line control: Helps coordinate data exchange between multiple automation devices across a PROFIBUS network.
Operator panel integration: Enables communication with compatible HMI panels and programming devices through PROFIBUS.
Industrial system expansion: Adds PROFIBUS DP master functionality to existing S7-1200 installations.
Harsh industrial environments: The SIPLUS version is designed for applications exposed to demanding environmental conditions, including chemically active substances.
Advantages
PROFIBUS DP Master Functionality
The module enables an S7-1200 controller to operate as a PROFIBUS DPV1 master, supporting communication with distributed devices.
Support for Multiple Slave Devices
It can manage up to 16 PROFIBUS DP slaves, making it suitable for distributed automation architectures.
High-Speed Data Exchange
With transmission rates from 9.6 kbit/s to 12 Mbit/s, the module accommodates different PROFIBUS network requirements.
Integration with Siemens Automation Systems
It supports S7 communication and allows programming devices and operator panels with PROFIBUS interfaces to connect to the S7-1200 system.
SIPLUS Environmental Protection
Conformal coating and an extended environmental specification help the module operate in industrial conditions where standard automation components may require additional protection.
Straightforward Engineering
Configuration through Siemens STEP 7 simplifies commissioning and network setup without requiring additional user programming for basic PROFIBUS master functions.
Technical FAQs
1. What is the main function of the 6AG1243-5DX30-2XE0?
It is a SIPLUS CM 1243-5 communication module that connects a SIMATIC S7-1200 controller to a PROFIBUS network and enables the PLC to operate as a DP master.
2. Which PROFIBUS protocol does the module support?
The module supports PROFIBUS DPV1 master functionality in accordance with IEC 61158.
3. How many PROFIBUS DP slave devices can it connect?
It supports up to 16 PROFIBUS DP slave devices.
4. What PROFIBUS transmission speeds are available?
It supports standard PROFIBUS transmission rates from 9.6 kbit/s to 12 Mbit/s.
5. What type of PROFIBUS connector does it use?
The module uses a 9-pin Sub-D socket with an RS-485 electrical interface.
6. Can the CM 1243-5 communicate with other Siemens PLCs?
Yes. It supports S7 communication with other compatible S7 stations, in addition to PROFIBUS DP master functions.
7. Can programming devices and HMI panels connect through this module?
Yes. Programming devices and operator panels equipped with compatible PROFIBUS interfaces can communicate with the S7-1200 through the CM 1243-5.
8. What external power supply does the module require?
It requires a nominal 24 V DC external supply, with a permissible range of 19.2–28.8 V DC. Typical current consumption is 100 mA, and typical power loss is 2.4 W.
9. Which software is required to configure the module?
STEP 7 Basic or STEP 7 Professional V11 or higher in the TIA Portal environment is specified for configuration.
10. What should be checked if PROFIBUS communication fails?
Inspect the 24 V DC supply, PROFIBUS cable, 9-pin connector, bus termination, slave addresses, and transmission rate. Also check the configured slave devices, network parameters, and diagnostic information in STEP 7. Ensure that unused interfaces retain their supplied protective covers as required by the SIPLUS environmental specifications.
