The 6ES7137-6AA01-0BA0 is a serial point-to-point (PtP) communication module from the Siemens SIMATIC ET 200SP series, also known as CM PtP.
It supports RS232, RS422, and RS485 serial interfaces, providing high flexibility. This module supports multiple protocols, including Freeport, 3964(R), Modbus RTU (master/slave), and USS, facilitating easy connection to various third-party serial devices. As a newer model with hardware version V2.0, it requires an A0 type BaseUnit and is fully supported in TIA Portal V17 and later versions.
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