Yokogawa CP401-11 Processor Module | PLC System | Orignial NewTechnical Specifications of Yokogawa CP401 11 Processor Module: Processing Speed: Look for information on the specific CPU clock speed (e. g., in MHz or GHz). Memory Capacity: Details on both RAM (Random Access Memory) and ROM (Read Only Memory) capacity are important factors. I O Capability: This typically includes the number and type of built in I O points, along with details on supported modular I O modules. Communication Protocols: Confirmation of