MODICON AS-C921-101 Communication Processor Module

MODICON AS-C921-101 is a high-performance communication module for Modicon 984 series PLC automation systems. This communication module is an intelligent co-processor board designed for dedicated serial communication and protocol handling. The communication module adopts isolated serial transceiver circuit and industrial anti-interference PCB layout. This communication module supports stable continuous operation in chemical, power, water treatment and process manufacturing production lines.

It serves as a core data processor to offload serial communication tasks from the main PLC CPU. The data processor manages custom ASCII protocols, printer output, barcode instrument and third-party device data exchange. This data processor features LED indicators for transmit, receive and fault status feedback. The data processor is fully compatible with Modicon 984 rack-based PLC systems.

The unit delivers dependable asynchronous serial communication for instrument integration and custom data logging applications. Accurate asynchronous serial communication reduces CPU load and prevents main logic scan delay. Stable asynchronous serial communication ensures consistent data exchange between peripheral serial devices and control racks. The asynchronous serial communication of this model meets strict industrial automation standards.