Description

YOKOGAWA CP47100S1 DCS Processor Module

Technical Specifications

• Product Model: CP47100S1
• Brand: YOKOGAWA
• Warranty: One Year
• Input Voltage: 24 VDC nominal, 1.8 A maximum power draw
• Operating Temperature: 0 °C to +55 °C
• Storage Temperature: -20 °C to +70 °C
• Response Time: Deterministic control loop scan down to 10 ms
• Protection Class: IP20 (rack‑mount cabinet‑only device)
• Accuracy Class: Process‑grade loop execution for regulatory and sequence control
• Output Frequency: Not applicable (DCS processing unit)
• Rated Current Range: 1.8 A @24 VDC
• Communication Interface: Dual Ethernet Vnet/IP ports; ESB bus internal rack interface
• Supported Protocols: Vnet/IP, ESB bus, Modbus TCP via gateway hardware
• Overload Capacity: On‑board power surge suppression; reverse‑voltage protection
• Dimensions: 32.8 mm × 199.5 mm × 146.5 mm

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Product Overview

The CP47100S1 is a field‑control processor for Yokogawa CENTUM VP DCS platforms, serving as the main computing core for AFV‑series field control units. It runs regulatory PID loops, interlock logic, and batch‑process sequences, while coordinating local and remote I/O modules across the ESB equipment bus. Built‑in non‑volatile flash memory preserves configuration and retentive process data during power interruptions, avoiding full‑program reload after brief supply loss.

This hardware addresses key operational risks for continuous‑process facilities: controller hardware failure, need for bumpless hot‑swap maintenance, and stable execution of complex multi‑loop control strategies. It supports dual‑redundant hot‑standby deployment; on‑board diagnostics trigger automatic bumpless transfer to the standby unit upon primary hardware faults, preventing unplanned process trips. Process‑plant control engineers, DCS retrofit integrators, and site maintenance teams benefit most. It requires CENTUM VP R6.05 or later system software and pairs with valid‑revision EC401 bus couplers. It fits standard FCU rack slots and delivers consistent real‑time performance for chemical, oil‑gas and power‑generation production workflows. (

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Key Application Notes

• Cannot mix CP461 and CP471 series modules within one redundant processor pair
• Hot‑swap replacement is available for redundant configurations without process shutdown
• Designed for safe‑area control‑room cabinet mounting; not for direct hazardous‑area installation
• Works with AFV30, AFV40, A2FV50 and A2FV70 field‑control‑unit hardware racks
• System diagnostics report memory faults, bus communication errors and processor health status via DCS human‑machine interface