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6ES5544-3UA11 Siemens
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The Siemens 6ES5544-3UA11 (CP 544) is a communications processor module for SIMATIC S5-115U, S5-135U, and S5-155U programmable controllers. It facilitates point-to-point data transfers between the PLC and other controllers or computers. The module accommodates two serial interfaces (via optional plug-in submodules), supports data rates up to 76 800 baud, and implements key protocols-including RK 512, 3964/3964R, and open driver-in firmware, storing parameter settings either in onboard RAM or the CPU's user memory.
Best Suited For
- Point-to-point coupling between S5 PLCs and external devices
- Data communications where legacy protocols like RK 512 or 3964(R) are required
- Applications where compact parameter storage in CPU or module RAM is acceptable
- S5-115U/135U/155U communications enhancement