Siemens 6AV3672-1CA11 Control Panel Interface

Siemens 6AV3672-1CA11 CPI 1 (Control Panel Interface) is a CPI module that links OP27 and TP27-6 operator panels to the SIMATIC HMI CPI bus, delivering 16 E/As (digital inputs/outputs) for panel-to-controller communication. Cataloged as 6AV3672-1CA11, this CPI 1 device is explicitly designed for OP27 and TP27-6 configurations and forms part of Siemens’ SIMATIC HMI family. By providing 16 E/As, the CPI 1 enables the operator interface to monitor and control digital signals within a compact control station, supporting straightforward integration with compatible PLCs or CPUs in existing Siemens installations. This module is typically used in retrofits or upgrades where CPI connectivity between OP27/TP27-6 HMIs and a Siemens control system is required, ensuring compatibility with the CPI ecosystem while occupying minimal space inside the control panel.