NEW 6ES7277-0AA22-0XA0

The 6ES7277-0AA22-0XA0 is a communication module from Siemens’ SIMATIC S7-200 series, specifically the EM 277 PROFIBUS-DP slave module.

Designed to enable connectivity between SIMATIC S7-200 PLCs and PROFIBUS-DP networks, this module functions as a slave device, allowing the S7-200 CPU to communicate with PROFIBUS-DP master devices such as S7-300/400 PLCs, HMI panels, or other industrial controllers. It serves as a critical interface for integrating S7-200 systems into larger, distributed automation networks.

The EM 277 supports the PROFIBUS-DP protocol with a maximum transmission rate of 12 Mbit/s, ensuring efficient data exchange in industrial environments. It can handle up to 128 bytes of input data and 128 bytes of output data, facilitating the transfer of process variables and control signals between the S7-200 PLC and the PROFIBUS network.

Installation is straightforward, as it connects directly to the S7-200 PLC’s expansion bus without requiring additional wiring for internal communication. The module features a PROFIBUS-DP interface with a 9-pin D-sub connector for network connection and includes status LEDs (Power, DP, and Error) for quick diagnostics of operational status.

Built to withstand industrial conditions, it operates within a temperature range of 0°C to 60°C (32°F to 140°F) and is designed to resist electrical noise and interference common in factory environments. Its compact form factor allows for easy integration into control cabinets with limited space.

The 6ES7277-0AA22-0XA0 is widely used in industrial automation setups where S7-200 PLCs need to be part of a larger PROFIBUS-DP network, such as in manufacturing lines, material handling systems, and process control applications, enabling seamless data communication and coordinated operation across multiple devices.