CP461-5M_YOKOGAWA_PRODUCT_吉林易择科技技术发展有限公司

The Yokogawa CP461 is a processor (CPU) module used in the CENTUM VP Field Control Unit (FCU), forming the core control unit of the Field Control Station (FCS). It is designed for high reliability, continuous operation, and supports dual-redundant configurations. CP461 modules are replaceable with CP471 in some cases, with certain software/hardware requirements. It interfaces with various components via redundant network (Vnet/IP), communications and I/O modules. It includes memory protection during power failure, “READY” contact output for FCU status monitoring, and supports a certain number of node units in the system.

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Specifications
Item Specification
Application Installed in Field Control Units (e.g. AFV30S/D, AFV40S/D, A2FV50S/D, A2FV70S/D)
Redundancy Supports dual-redundant CPU configuration
I/O capacity Up to 8 I/O modules per FCU
Node units Up to 13 ESB/optical ESB node units connectable
Communication interface Dual-redundant Vnet/IP
Memory backup Battery-backed RAM, backup up to 72 hours, recharge ≥48 hours
READY contact output 2 terminals (NC, C), open on FCU failure, 30 V DC / 0.3 A
Dimensions Approx. 20.3 cm × 5.1 cm × 15.2 cm (W × D × H)
Weight Approx. 0.7 kg
Power supply Supplied from FCU backplane (redundant power system)
Environment Same as FCU: typically 0–55 °C, 5–95 % RH (non-condensing)

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