Product Overview
The Siemens 6ES7441-2AA04-0AE0 CP 441-2 Communications Module is designed for SIMATIC S7-400 systems, providing two channels for point-to-point connections. This module supports various physical interfaces including 20 mA (TTY), RS 232C, and RS 422/485, making it a versatile upgrade for legacy communication links. With an integrated configuration package on CD, the Siemens 6ES7441-2AA04-0AE0 simplifies setup and integration into existing automation networks.
Key Specifications
The Siemens 6ES7441-2AA04-0AE0 offers the following technical characteristics:
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Supply voltage: 5 V DC and 24 V DC
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Input current from backplane bus: max. 600 mA at 5 V DC (without interface module)
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Power loss: typ. 0.3 W
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Number of interfaces: 2, variable (20 mA TTY, RS 232C, RS 422/485)
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Transmission rate: up to 115.2 kbit/s (distributed on both interfaces)
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Cable lengths: shielded — 20 mA TTY: max. 1000 m; RS 232: max. 10 m; RS 422/485: max. 1200 m
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Integrated protocol drivers: 3964(R), ASCII, RK512, Printer, customer-specific reloadable
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Memory requirements: 1-5 KB for parameters, 0-55 KB for message texts, 0-64 KB for loadable drivers
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Dimensions: 25 x 290 x 210 mm (W x H x D); weight approx. 720 g (interface module: 100 g)
Industry Applications
The Siemens 6ES7441-2AA04-0AE0 excels in applications requiring reliable point-to-point communication between S7-400 controllers and remote devices. Typical use cases include connecting to printers (HP-Deskjet, HP-Laserjet, IBM-Proprinter), integrating with legacy systems using 3964(R) or RK512 protocols, and linking to serial sensors or drives. Its variable interface support allows seamless upgrades from older TTY links to modern RS 422/485 without major rewiring.
Compatibility & Integration
Designed for the SIMATIC S7-400 family, the Siemens 6ES7441-2AA04-0AE0 communicates via the backplane bus and is configured using STEP 7 software (own parameter assignment forms). It supports multiple protocol drivers including ASCII, 3964(R), RK512, and user-defined drivers, ensuring broad compatibility with third-party devices. The module requires a memory card in the S7-CPU for driver storage, with 0-64 KB allocated for loadable drivers.
Selection Guide & Purchasing Advice
Before purchasing the Siemens 6ES7441-2AA04-0AE0, verify that your S7-400 rack has a free slot and that your CPU supports the memory card requirements. Ensure you have the necessary interface cables and shielded wiring for distances up to 1200 m (RS 422/485). For reliable supply, order from PLC Source PRO, your trusted source for industrial automation spares. For further assistance, visit ubest101.myshopify.com.