1771-DCM Allen-Bradley Direct Communication Module In Stock

The Allen-Bradley 1771-DCM is a versatile chassis-mounted, single-slot I/O module designed for facilitating communication between supervisory processors and local processors in industrial control systems. This module plays a critical role in passing data table values between these processors, enabling efficient and effective operation of the overall system. Below are its key features and functionalities:

Key Features

• Transfer Data Table Words: The 1771-DCM module allows for the seamless transfer of data table words between supervisory and local processors. This capability ensures that all parts of the control system have access to the necessary information for optimal performance.

• Obtain Predictable Transfer Times: One of the standout features of this module is its ability to offer predictable transfer times. This predictability is crucial for ensuring reliable communication and timely execution of commands within the control system.

• Decrease Highway Data Traffic: By efficiently managing the data flow, the 1771-DCM helps decrease overall highway data traffic. This reduction minimizes potential congestion on the network, enhancing the efficiency of data transmission across the system.

• Flexible Data Transfer Capacity: Depending on the adequacy of transfer times over remote I/O channels, the 1771-DCM can transfer different volumes of data:

  • Up to 8 words: When the transfer time over a remote I/O channel is adequate but limited.
  • Up to 64 words: When there is sufficient time for block transfers over a remote I/O channel, maximizing data throughput when conditions allow.