Technical Specifications
| Parameter | Specification |
|---|---|
| Model | AFV10S-S31251 |
| Type | Field Control Unit (for Vnet/IP and FIO, 19-inch rack mountable) |
| Processor | VR5432 (133 MHz) |
| Main Memory Capacity | 32 MB |
| Memory Protection During Power Failure | Battery-backed, retention up to 72 hours |
| Communication Interface | Dual-redundant Vnet/IP |
| Number of Node Units Connectable | Maximum 14 per FCU |
| Power Supply Options | 100-120 V AC / 220-240 V AC / 24 V DC |
| Power Consumption | 100-120 V AC: ~200 VA · 220-240 V AC: ~230 VA · 24 V DC: ~5.5 A |
| Weight | Approx. 7 kg |
| External Dimensions | Width ≈ 482.6 mm × Depth ≈ 465.1 mm × Height ≈ 207 mm |
| Mounting | 19-inch rack mount, secured with 8 × M5 screws |
FAQ
Q1: What does the suffix “-S31251” in AFV10S-S31251 denote?
A1: The suffix “S31251” specifies the configuration: “S” denotes the standard single-controller version; the “3” indicates dual-redundant Vnet/IP with single power supply; “1” always stands for the first revision; “2” indicates 220-240 V AC power supply; “5” represents a basic type without explosion-protection; the final “1” indicates inclusion of the LFS1500 control function for field control station.
Q2: Can the AFV10S-S31251 support redundant communication paths?
A2: Yes — the specification indicates support for dual-redundant Vnet/IP communication even in the “S” model, enhancing network reliability.
Q3: What types of power supply are supported and what does the code “2” in the suffix mean?
A3: The unit supports 100-120 V AC, 220-240 V AC and 24 V DC. In this case, the “2” in the suffix designates the 220-240 V AC supply variant.
Q4: What are the physical dimensions and weight of the AFV10S-S31251?
A4: The external dimensions are approximately 482.6 mm wide, 465.1 mm deep and 207 mm high. The weight is around 7 kg.
Q5: How many node units can be connected to this FCU?
A5: Up to 14 node units can be connected to the FCU, subject to the application capacity and license expansion.
Q6: How long is the memory retention on power loss for this unit?
A6: The main memory is battery-backed and designed to retain data for up to 72 hours in the event of a power failure.
Q7: Is this unit suitable for high-availability control systems (mission-critical)?
A7: Yes — although it is a single-controller model, its dual-redundant network and robust architecture make it appropriate for reliable industrial control applications.
Q8: Where do I find the detailed hardware and installation documentation?
A8: The full specification sheet and installation manual are available from the manufacturer’s documentation for the AFV10S series and should be referenced for installation, configuration and suffix-code interpretation.










