Emerson VE4014 DeltaV M-Series Profibus DP Card

Configured for high-speed serial bus communications in DeltaV DCS architectures, the Emerson VE4014 (VE4014 Profibus DP Interface Card) provides direct physical/electrical execution. It serves as the primary gateway module to integrate slave field devices directly onto the M-series local controller backplane.

Hardware Specifications

Process Control & Fieldbus Integration

The VE4014 enables high-speed cyclical data exchange between the host controller and distributive field networks.

• FOUNDATION Fieldbus / Profibus PA Connectivity: While native to Profibus DP protocols, the interface card supports downstream segments utilizing Profibus PA linking devices. This configuration bridges physical layer segments without interrupting the master cyclic scanning schedule.
• Channel-to-Channel Isolation Protection: To protect backplane microprocessors from external field disturbances, the communications circuitry features built-in galvanic isolation of 1500 VDC. This barrier prevents transient ground loops and high-voltage spikes on the serial network from migrating to the active carrier backplane.
• 4-20 mA HART and Field Device Mapping: The module decodes diagnostic data blocks from slave devices, permitting the direct mapping of secondary and tertiary fieldbus process variables directly alongside standard 4-20 mA analog input channels inside the controller database.

Frequently Asked Questions

• Q: What are the hot-swap limits for replacing this module in an active carrier?
• A: The VE4014 module supports hot-swapping under power. However, because it is a non-redundant single-port module, removing the card will instantly disrupt communication to all connected Profibus DP slaves on that specific physical network segment.
• Q: How does the backplane power rating affect multi-card configurations?
• A: The card draws 600 mA at 12 VDC directly from the local controller backplane power supply. When designing the M-series local carrier, engineers must sum the total current requirements of all integrated I/O cards to avoid overloading the primary power module.
• Q: Does this module support automatic baud rate detection?
• A: No. The master baud rate configuration must be explicitly configured within the DeltaV Explorer software database and must match the physical transmission speeds supported by the longest physical cable run of the slave devices.

Field Installation Guidelines

• Termination Resistance Configuration: Standard Profibus DP termination resistors must be activated or physically installed at both end nodes of the segment. Failure to terminate the line correctly will cause signal reflections and lead to cyclic packet dropouts.
• Segment Grounding Protocol: Ensure the Profibus DP shielded copper cable is grounded at the entry point of the control cabinet. The shield should be connected to a low-impedance earth ground bar while maintaining galvanic isolation across the individual node chassis to prevent circulating ground currents.
• Backplane Seating and Latching: Align the VE4014 with the card slot tracks on the 2-wide or 8-wide carrier. Push the module firmly into place until the top and bottom latching mechanisms click, then tighten the integrated retaining screw to ensure consistent contact with the backplane pins.