Brand:Siemens Item No.:6AG1243-2AA30-7XB0 Product Origin:Germany Product Dimensions:30 × 110 × 75 mm Product Weight:0.155 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 6AG1243-2AA30-7XB0 SIPLUS S7-1200 CM 1243-2 Communication Module provides AS-Interface master functionality for SIMATIC S7-1200 automation systems. Based on the 3RK7243-2AA30-0XB0 design, this SIPLUS module features conformal coating and is intended for industrial environments requiring additional environmental protection.
Supporting AS-i Specification V3.0 and master profile M4, the module connects an S7-1200 PLC with up to 62 AS-i slave devices. It provides access to digital and analog field data, enabling sensors, actuators, and other compatible equipment to participate in centralized machine and process control.
The CM 1243-2 supports configuration through STEP 7 and includes LED indicators for network and module diagnostics. Its compatibility with AS-i Power24V also provides flexibility when designing the field-level power arrangement. For system integrators and maintenance teams, the 6AG1243-2AA30-7XB0 is a practical solution for integrating AS-i device networks into S7-1200-based automation systems.
Technical Specifications
Parameter
Specification
Brand
Siemens
Model
6AG1243-2AA30-7XB0
Product Type
Communication Module
Product Designation
SIPLUS S7-1200 CM 1243-2
Product Series
SIMATIC S7-1200
Communication Function
AS-Interface Master
AS-i Specification
V3.0
Supported Master Profile
M4
Maximum AS-i Slaves
62
Maximum Digital Inputs
496
Maximum Digital Outputs
496
AS-i Interfaces
1
AS-i Connection
Screw-type connection
AS-i Power24V Support
Yes
Configuration
STEP 7 / Command Interface
Status Indicators
AS-i, PF, CM, CER, DIAG LEDs
Backplane Supply
5 V DC
Maximum Backplane Current
250 mA
Power Loss
2.9 W
Rated Insulation Voltage
500 V
Protection Rating
IP20
Conformal Coating
Yes
Operating Temperature
-25 to +70 °C (SIPLUS product specification; installation conditions apply)
Mounting
35 mm DIN Rail
Dimensions
30 × 110 × 75 mm
Weight
0.155 kg / 0.34 lb
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These modules provide different communication interfaces and functions. They are related products within the S7-1200 portfolio, not direct replacements for the CM 1243-2.
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AS-Interface Master Module CM 1243-2 Base Product
Applications
The Siemens 6AG1243-2AA30-7XB0 is a SIPLUS S7-1200 CM 1243-2 communication module designed to connect a SIMATIC S7-1200 controller to an AS-Interface (AS-i) network. It functions as an AS-i master and supports the AS-i specification V3.0, allowing the controller to exchange data with compatible sensors, actuators, and other field-level devices.
Typical application areas include:
Distributed I/O systems: Connects AS-i field devices to an S7-1200 PLC for centralized monitoring and control.
Machine automation: Integrates proximity sensors, limit switches, valve terminals, and other compatible devices.
Conveyor systems: Supports communication with distributed sensors and actuators along production and material-handling lines.
Packaging equipment: Helps coordinate field-level signals and control devices in automated packaging machinery.
Process automation: Provides access to digital and analog AS-i device data through the PLC.
Existing AS-i network expansion: Adds AS-i master functionality to an S7-1200 installation where compatible fieldbus infrastructure is already in place.
Advantages
Dedicated AS-i Master Function
The CM 1243-2 enables an S7-1200 controller to operate as an AS-Interface master, simplifying integration of compatible field devices.
AS-i Specification V3.0 Support
Support for AS-i V3.0 and master profile M4 provides access to a broad range of compatible AS-i devices and functions.
Expanded I/O Connectivity
The module supports up to 62 AS-i slaves, with a maximum of 496 inputs and 496 outputs across the AS-i network.
Flexible Data Access
Digital I/O data can be accessed through process-image and peripheral addresses, while analog data can also be transferred using data records.
SIPLUS Conformal Coating
The SIPLUS version features conformal coating for improved protection in demanding industrial environments. Its environmental limits should be considered according to the specified installation conditions.
Convenient Configuration and Diagnostics
AS-i configuration can be handled through STEP 7 and the command interface. Integrated LED indicators help technicians identify communication and module status.
Technical FAQs
1. What is the main function of the 6AG1243-2AA30-7XB0?
It is an AS-Interface master communication module for SIMATIC S7-1200 PLCs. It connects the controller to an AS-i network and enables data exchange with compatible field devices.
2. Which AS-Interface specification does it support?
The module supports AS-i Specification V3.0 and master profile M4.
3. How many AS-i slave devices can it support?
It supports up to 62 AS-i slaves on one AS-Interface network.
4. What is the maximum I/O capacity of the module?
The maximum supported capacity is 496 digital inputs and 496 digital outputs. Actual available data depends on the connected slave devices and network configuration.
5. Can the module communicate with analog AS-i devices?
Yes. Analog I/O data can be accessed through peripheral addresses and data record transfer, depending on the connected AS-i devices.
6. How is the module configured?
Configuration is performed using Siemens STEP 7 engineering software and the module's command interface. The AS-i network and connected slave devices must be configured appropriately.
7. How many CM or CP communication modules can be installed on one S7-1200 CPU?
The S7-1200 system supports a maximum of three communication modules in total, including CM and CP modules. The permitted arrangement should be checked against the CPU configuration.
8. Does the module support AS-i Power24V?
Yes. It supports AS-i Power24V operation. When using this arrangement, the required data decoupling equipment and power-supply configuration must be considered.
9. What do the status LEDs indicate?
The module provides AS-i, PF, CM, CER, and DIAG LED indicators. They help identify AS-i network status, power-related conditions, configuration errors, and diagnostic states.
10. What should be checked if AS-i communication fails?
Check the AS-i power supply, bus wiring polarity, network termination and connections, slave addresses, and connected device status. Also inspect the module LEDs and review the STEP 7 diagnostics to identify configuration or communication faults.
