Available on working days between 9:00 am to 6:00 pm
Email us: sales2@industriaxplc.com
Available 24/7 for inquiries and support
Description
Yokogawa AFG10D Duplexed Field Control Unit
The Yokogawa AFG10D also cataloged as the AFG10D FCU Duplexed Field Control Unit, operates as a dedicated hardware component for deterministic control execution and data exchange within V net / RIO control network architectures. The Yokogawa AFG10D (AFG10D FCU) provides direct physical and electrical execution of redundant process control logic and field I/O coordination across dual communication paths.
Suffix Breakdown & Model Matrix
AFG10D: Duplexed Field Control Unit for V net / Remote I/O systems
Power Input Options:
100 to 120 VAC, 50/60 Hz
220 to 240 VAC, 50/60 Hz
24 VDC supply variant
Redundancy Configuration: Dual-redundant processor and communication path architecture
Mounting Type: 19-inch rack installation format
Protection Options: Optional conformal coating for corrosive atmosphere resistance
Battery-backed main memory retention (up to 72 hours)
Protection Rating
Internal fuse 8 A / 250 V; recommended external breaker 15 A / 250 V
Channel Isolation and Process Communication Behavior
The AFG10D FCU implements channel-to-channel electrical isolation across control and communication domains to prevent signal coupling between redundant processing paths. Within Yokogawa DCS architectures, process variables are exchanged over V net dual highways, while RIO nodes operate as distributed acquisition points.
Signal conditioning paths are compatible with standard 4-20 mA loop interfaces, and system integration may coexist with HART protocol layers for field device diagnostics. In mixed configurations, controller-level scanning supports deterministic update cycles between FCU and remote I/O stations.
Frequently Asked Questions
Q: Can the AFG10D perform hot-swap of processor modules during operation? A: Hot-swap capability is limited to system-supported redundant module switching. Active processor removal requires system-side failover to standby path before physical replacement.
Q: What is the expected behavior during FCU redundancy switching? A: The unit performs a bumpless transfer between active and standby processing paths, maintaining V net communication continuity with minimal control interruption.
Q: Does the FCU support mixed RIO and V net communication loading? A: Yes, RIO communication and V net control traffic are handled through separated logical channels with deterministic scan scheduling.
Field Installation Guidelines
The unit shall be installed in a grounded 19-inch industrial rack structure with verified equipotential bonding between chassis ground and cabinet earth. Power wiring must follow segregated routing for AC/DC input lines to minimize electromagnetic coupling into V net communication cables.
Shield termination for field communication cables shall be completed at designated grounding points only, avoiding multi-point grounding loops. Maintain minimum bend radius for V net fiber or copper media as specified by system-level installation standards.
Redundant power inputs, if both utilized, must originate from independent supply breakers to preserve fault isolation characteristics of the duplexed architecture.
