The Yokogawa VC401-11, also cataloged as the VC401 V Net Coupler Module, operates as a dedicated hardware component for network bridging and data bus coupling within CENTUM VP DCS platforms.
| Parameter | Specification |
|---|---|
| Model | VC401-11 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 0.2 kg |
| Dimensions | 3.8 cm x 15.2 cm x 12.7 cm |
| Operating Temp | -10 to +50 deg C |
| Power Consumption | 1.2 W (12 to 24 VDC via backplane) |
| Supported Networks | Vnet/IP (100 Mbps), V net (10 Mbps), VL net |
| Network Architecture | Single or dual-redundant setups |
| System Compatibility | Yokogawa CENTUM VP DCS |
| Mounting | Chassis rack mount |
| Tariff Code | 8517620050 |
The Yokogawa VC401-11 establishes continuous signal transformation between high-speed Vnet/IP networks and traditional V net or VL net data buses. Incorporating optocoupler isolation and channel-to-channel isolation, the module eliminates ground loop interference across interconnected human interface stations and field control units. Operating in dual-redundant communication configurations, the unit maintains steady data packet conversion with negligible transmission delay, executing instantaneous hardware switchover when primary signal paths encounter bus failures.
Q: Can maintenance personnel replace the VC401-11 coupler module while the host DCS chassis remains powered?
A: Yes. The module features hot-swap capability, allowing live installation or removal without disrupting active network communication on adjacent cards.
Q: What power inputs are required to operate the VC401-11 within the CENTUM VP chassis?
A: The module draws power directly from the internal system backplane across a 12 to 24 VDC supply rail, consuming approximately 1.2 W during standard operation.
Observe static electricity protection procedures prior to handling the coupler module. Slide the board smoothly along the CENTUM VP rack guide rails until the rear backplane connectors seat completely. Tighten the front panel mounting screws to establish functional ground shielding against high-frequency electromagnetic interference. Route external bus cables with clear physical separation from high-voltage AC power wiring to maintain signal line integrity across all network nodes.
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