Configured for deterministic network communication in CENTUM VP control systems, the Yokogawa VL702 (VL702 Vnet/IP Interface Card) provides direct physical execution of Vnet/IP protocol-based data exchange across industrial control networks.

Hardware Specifications

Vnet/IP Network Connectivity and Determinism

The VL702 serves as the primary gateway for integrating stations into the Vnet/IP control network. By leveraging Ethernet-based communication, the module ensures high-speed, deterministic data transport critical for real-time process control. The interface card architecture supports hardware-level packet prioritization, which minimizes transmission latency and jitters for time-sensitive control traffic. It implements internal diagnostic routines to verify link-layer integrity, ensuring that process communication remains robust against network-induced noise or traffic congestion.

Frequently Asked Questions (FAQ)

Q: What is the primary communication protocol supported by the VL702 card?

A: The VL702 is specifically designed to interface with the Yokogawa Vnet/IP protocol, enabling high-speed, deterministic communication within the CENTUM VP distributed control environment.

Q: Does the VL702 card require external network configuration for system integration?

A: The module relies on the system-defined Vnet/IP address assignments. Integration must be performed via the CENTUM system builder software to ensure correct synchronization with the control bus architecture.

Field Installation Guidelines

1. Power off the target controller or station before inserting the VL702 module into the designated interface slot to avoid backplane pin damage.
2. Ensure the module is seated fully and the locking fasteners are engaged to prevent intermittent signal loss due to vibration.
3. Connect the Ethernet cable using shielded RJ45/industrial connectors, ensuring the shield is bonded to the facility ground to maintain electromagnetic immunity.
4. Verify link status via the module's onboard LED indicators upon system startup.
5. Avoid routing Vnet/IP cables in parallel with high-voltage power conduits to prevent signal interference on the control bus.