Home > Products > SIEMENS > SIMATIC S7 Series
Minimum Order Quantity |
1 Piece |
Price |
Contact for Jim |
Packaging Details |
Original new Factory Sealed |
Delivery Time |
3–7 Days |
Payment Terms |
T/T |
Shipping Method |
DHL / FedEx / UPS / TNT |
Supply Ability |
In stock |
Electrical values for interface submodules apply only when the corresponding submodule is fitted. Modbus RTU master parameters require the separately loaded Siemens driver.
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Model Number
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6ES7441-2AA03-0AE0
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Serial interface channels
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2; selected by plug-in interface submodules
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Base-module supply
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5 V DC from the S7-400 backplane
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Base-module current, maximum
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700 mA; without interface submodules
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TTY submodule current at 5 V, maximum
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300 mA
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TTY submodule current at 24 V, maximum
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45 mA
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RS-232C submodule current at 5 V, maximum
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300 mA
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RS-422/485 submodule current at 5 V, maximum
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300 mA
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CPU memory for parameters, per interface
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1–5 KB
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CPU memory for message texts, per interface
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0–55 KB
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CPU memory for loadable drivers, per interface
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0–64 KB
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Shielded TTY cable length, maximum
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1000 m
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Shielded RS-232 cable length, maximum
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10 m
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Shielded RS-422/485 cable length, maximum
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1200 m
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Total transmission rate, maximum
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115.2 kbit/s; shared between both interfaces
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TTY rate with standard drivers, maximum
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19.2 kbit/s; 3964(R), ASCII, printer and RK512
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RS-232 rate with standard drivers, maximum
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115.2 kbit/s; 3964(R), ASCII, printer and RK512
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RS-422/485 rate with standard drivers, maximum
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115.2 kbit/s; 3964(R), ASCII, printer and RK512
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Communication connections, total
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8
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Selectable interface electrical standards
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20 mA TTY; RS-232C (V.24); RS-422/485 (X.27)
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Integrated protocol drivers
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3964(R), ASCII, RK512 and printer
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Optional Modbus RTU master baud rates
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300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 76800 and 115200 bit/s; interface limits apply
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Optional Modbus RTU master data bits
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8 bits per character
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Optional Modbus RTU master stop bits
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1 or 2
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Optional Modbus RTU master parity
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None, odd or even
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Optional Modbus RTU master reply monitoring
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5–65500 ms
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Optional Modbus RTU master character-delay multiplier
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1–10
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Optional Modbus RTU master RS-422 mode
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4-wire, full duplex
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Optional Modbus RTU master RS-485 mode
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2-wire, half duplex
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Optional Modbus RTU master slave-address range
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1–255; address 0 for permitted broadcast writes
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Optional Modbus RTU master register read count
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1–127 registers for function 03 or 04; 2 bytes per register
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Optional Modbus RTU master error check
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CRC-16, 2 bytes
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Sales
Jim Pei
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Email
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Phone/Whatsapp
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Siemens 6ES7441-2AA03-0AE0 is the SIMATIC S7-400 CP441-2 communications module for point-to-point serial connections. It provides two channels with a maximum combined transmission rate of 115.2 kbit/s. Plug-in interface submodules determine whether each channel uses TTY, RS-232C or RS-422/485 signaling. Integrated drivers cover ASCII, 3964(R), RK512 and printer communication. The base module draws its power from the S7-400 backplane. The interface configuration must be matched to the connected equipment.
The 6ES7441-2AA03-0AE0 connects the controller to serial devices through the selected protocol and electrical interface. It can exchange structured process information with a compatible communication partner. Printer support also enables configured text output from the automation system. Loadable drivers extend the module for supported specialist communication tasks. STEP 7 parameter assignment aligns the serial settings with the partner device. Review the existing project, interface submodules and driver requirements before selecting a replacement.
Connect an S7-400 station to a compatible point-to-point partner through the selected serial interface and protocol.
Use the integrated ASCII, 3964(R) or RK512 driver appropriate to the partner system and the required message structure.
Send configured printer output or implement a supported specialist protocol with the corresponding separately loaded driver.
Match the fitted interface submodule to the partner device and wiring. The electrical interfaces are selectable, rather than all provided by one fixed connector.
Modbus RTU requires the corresponding separately loaded Siemens driver. Confirm the driver and licensing requirements before ordering.
Review the complete article number, installed interface submodules, project configuration and any loadable driver used by the existing system.
Yes. The integrated printer driver supports the specified printer families and a user-defined printer configuration.
We supply original new products and inspect each item before delivery. Actual-item and nameplate photographs can be provided for confirmation.
Confirmed in-stock units are arranged for immediate dispatch after payment is received. Courier delivery is normally 3–7 days.
With 20+ years of industry experience, we serve customers worldwide and have built long-term relationships across the UK, Russia, UAE, India, Venezuela, and more.
Our experienced team provides reliable pre-sales and after-sales support, helping customers select suitable products and resolve purchasing concerns.
We supply leading automation brands covering PLCs, DCS, I/O modules, drives, motors, power supplies, communication modules, and more.
A wide range of products is available from stock, including discontinued, obsolete, and hard-to-find parts, helping reduce sourcing time.
We value long-term cooperation and treat every customer with honesty, respect, responsibility, and care.
From a single replacement part to complete automation projects, we are ready to support your needs and build a long-term partnership.
Our team members have an average of more than 10 years of industry experience. We have worked with customers worldwide, including those from India, Germany, Sweden, Italy, Russia, Venezuela, Israel, and many other countries. Throughout our careers, we have collectively completed over 3,000 orders and established long-term business relationships with customers across nearly 30 countries.
We can often identify a product’s manufacturer, series, configuration, and function from its model number or nameplate photo. We also understand how revisions, firmware, and specifications affect compatibility and whether an alternative model can be used safely.
In Practice: An Indian customer urgently needed a discontinued control module after several suppliers reported no stock. We identified its exact revision and function from the nameplate, checked compatible alternatives, and contacted factory and warehouse channels to locate matching inventory. After installation, the customer confirmed that the module operated correctly and later asked us to source additional spare parts.
Our team treats every inquiry sincerely and answers every question patiently. Even for complex requests, we verify and respond to each detail instead of providing a rushed or uncertain answer.
In Practice: A German customer sent a mixed list of automation products and asked repeated questions about revisions, condition, photos, and delivery. Our team organized the requirements, checked every item, and replied point by point. The customer said our detailed communication made the purchasing decision easier and continued sending us new inquiries.
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