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- Siemens
- Siemens Simatic S7
- S7-1200
- 6ES7241-1CH30-1XB0
In Stock
Ships by Wednesday, August 26
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· Product image is representative; revision or series may vary. Contact us to request a specific version.
We provide 1 year warranty for all remaining parts.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online.
If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.
Amikon offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
Technical specifications for 6ES7241-1CH30-1XB0
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Product Model6ES7241-1CH30-1XB0
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Spare ModelNot available
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Product ParametersSIMATIC S7-1200 CB 1241 RS485 communication board with terminal block and Freeport support
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Tariff Code85176200
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Country of originChina
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Place of shipmentXiamen, China
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In stock1 unit
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Estimated Shipping Size50 x 80 x 27 mm
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ManufacturerSiemens
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Weight0.031 kg
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Product type designationCB 1241 RS 485
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Automation platformSIMATIC S7-1200
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Physical interfaceRS485
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Electrical connectionTerminal block
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Freeport supportYes
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Backplane current at 5 V DC50 mA
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Typical power loss1.5 W
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Maximum cable length1000 m
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ASCII protocolYes - library function
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Modbus RTU masterYes
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Modbus RTU deviceYes
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USS protocolYes - library function
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Maximum telegram length1 kbyte
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Bits per character7 or 8
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Stop bits1 or 2
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Front enclosure materialPlastic
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Module dimensions38 x 62 x 21 mm
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Lifecycle statusPM300 - Active Product; phase-out from 1 November 2026
Description
Siemens 6ES7241-1CH30-1XB0 is a SIMATIC S7-1200 CB 1241 communication board with an RS485 interface.
The board uses a terminal block and supports Freeport serial communication.
Its integrated protocol functions include Modbus RTU master, Modbus RTU device and USS, while ASCII is available as a library function.
The maximum point-to-point cable length is 1000 m, the typical backplane current at 5 V DC is 50 mA, and typical power loss is 1.5 W.
The official package dimensions are 50 x 80 x 27 mm, the net weight is 0.031 kg, and the country of origin is China.
Siemens lists the product as PM300 - Active Product with phase-out from 1 November 2026. Verify the exact CPU, wiring and project requirements before replacement.
Information
Product Information
Key Features
Applications
Engineering & Compatibility
Lifecycle & Replacement
Siemens 6ES7241-1CH30-1XB0 is a SIMATIC S7-1200 CB 1241 communication board.
It provides an RS485 physical interface through a terminal block.
The board supports Freeport serial communication.
Integrated protocols include Modbus RTU master, Modbus RTU device and USS.
The maximum point-to-point cable length is 1000 m.
Siemens lists the product as PM300 - Active Product with phase-out from 1 November 2026.
SIMATIC S7-1200 communication board.
RS485 serial interface.
Terminal-block connection.
Freeport support.
Modbus RTU master and device support.
USS support and ASCII library function.
Maximum cable length of 1000 m.
Freeport serial communication with user-defined telegrams.
Modbus RTU master communication.
Modbus RTU device communication.
USS communication with supported drives or devices.
ASCII communication through the Siemens library function.
Confirm that the controller is a compatible SIMATIC S7-1200 CPU.
Verify the exact CB 1241 slot, mechanical fit and front-access requirements.
Confirm the RS485 terminal assignment, polarity, cable shield and grounding design.
Select the required Freeport, Modbus RTU or USS protocol before project commissioning.
Match baud rate, character length, stop bits and parity to the connected device.
Keep the point-to-point cable length within the Siemens maximum of 1000 m.
Account for the typical 50 mA load from the 5 V DC backplane bus and 1.5 W power loss.
Review the project configuration and current Siemens documentation before installation or replacement.
Siemens lists 6ES7241-1CH30-1XB0 as PM300 - Active Product.
The official product entry states phase-out from 1 November 2026.
No official successor is listed in the current product entry.
The exact RS485 interface, terminal wiring and supported serial protocol must be verified for replacement.
A different S7-1200 communication module is not an automatic direct substitute unless the CPU, interface and project requirements are confirmed.
AMIKONG can assist with checking availability of the exact article and compatible spare units for the verified system configuration.
Alternative Names
Technical notes
Confirm the exact article number, S7-1200 CPU compatibility, CB 1241 slot and mechanical fit, RS485 terminal wiring, cable shielding and grounding, required serial protocol, baud and frame settings, 1000 m maximum cable length, 5 V backplane load, project configuration and current Siemens documentation before installation or replacement.
FAQs
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What is Siemens 6ES7241-1CH30-1XB0?
+It is a SIMATIC S7-1200 CB 1241 RS485 communication board with a terminal block. -
Which controller platform uses this communication board?
+It is designed for the SIMATIC S7-1200 controller platform. -
Which physical interface does CB 1241 provide?
+It provides an RS485 serial interface and supports Freeport communication. -
Which serial protocols are supported?
+The official technical data lists Freeport, Modbus RTU master, Modbus RTU device and USS; ASCII is available as a library function. -
What is the maximum cable length?
+Siemens specifies a maximum point-to-point cable length of 1000 m. -
What are the package dimensions and net weight?
+The package dimensions are 50 x 80 x 27 mm and the net weight is 0.031 kg. -
What is the Siemens lifecycle status?
+Siemens lists it as PM300 - Active Product with product phase-out from 1 November 2026. -
What must be checked before replacing this board?
+Confirm the exact article, S7-1200 CPU and slot compatibility, RS485 wiring, shield and ground design, serial protocol settings, cable length, backplane load and project configuration.
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6ES7241-1CH30-1XB0SIMATIC S7-1200 CB 1241 RS485 communication board with terminal block and Freeport supportManufacturer: SiemensView Details
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