621-9939 Honeywell Serial Link Module for Industrial Control Systems

Description

TheHoneywell 621-9939 Serial Link Module (SLM)is a critical component fordistributed control systems (DCS), enablingasynchronous serial communicationbetweenremote I/Oandprocessor modules. Featuring adedicated processorwith its own data table, the module allows forindependent operationandhigh-speed data exchange. It is ideal forTDC 3000and similar architectures, enhancing systemflexibilityandfault tolerance.