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Yokogawa ACP71 Profibus Communication Card

Yokogawa ACP71 Profibus Communication Card

The Yokogawa ACP71, also cataloged as the ACP71 Profibus Communication Card, operates as a dedicated hardware component for deterministic data exchange between distributed control systems and Profibus PA/DP field instruments.

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Availability: In stock

SKU: ACP71
Vendor: Yokogawa
Category: Profibus Communication Card
Related Series:

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The Yokogawa ACP71, also cataloged as the ACP71 Profibus Communication Card, operates as a dedicated hardware component for deterministic data exchange between distributed control systems and Profibus PA/DP field instruments.

Hardware Specifications

Parameter Specification
Model ACP71
Brand Yokogawa
Origin Japan
Weight 0.3 kg 
Dimensions Standard V-net/E-net module format
Operating Temp 0 to 50 deg C
Power Consumption 24 V DC (System backplane powered)
Bus Type Profibus DP/PA

Industrial Network Connectivity

The ACP71 facilitates high-speed Profibus communication within the control network. It manages backplane bus communication velocity to ensure synchronization with the DCS scan cycle, which is necessary for real-time monitoring and control of field devices. The module supports deterministic network timing and provides robust diagnostic feedback regarding bus health, node status, and data frame integrity. Through its integrated firmware, the ACP71 supports seamless integration into existing Yokogawa platforms, ensuring firmware flash compatibility and standard object mapping for Profibus-compliant sensors and actuators.

Frequently Asked Questions

Q: Does the ACP71 support hot-swapping during active system operations?

A: No. The card must be de-energized or the associated network segment placed into a maintenance state before physical removal or insertion to prevent communication disruptions across the Profibus segment.

Q: Is this card compatible with both Profibus DP and PA protocols?

A: Yes, the ACP71 serves as a communication gateway capable of handling Profibus DP data frames and can interface with PA devices through appropriate field couplers or segments, depending on the system configuration.

Field Installation Guidelines

  • Insert the card into the designated communication slot on the Yokogawa controller rack, ensuring the module is fully seated for proper backplane contact.
  • Use shielded, twisted-pair cable specifically rated for Profibus (typically purple jacketed) for all field segment wiring.
  • Terminate both ends of the Profibus segment using 220-ohm resistors at the connector level to prevent signal reflection and data corruption.
  • Ensure the module chassis is connected to a low-impedance cabinet ground to facilitate effective electromagnetic interference shielding for the high-speed data signals.