Description
Product Description
Overview
The VE4021 (VE4021) DeltaV M-series Zone 2 Remote I/O Unit by EMERSON/EPRO offers a compact and modular solution for efficient process control integration. Designed for hazardous environments, this Remote I/O subsystem provides reliable connectivity and flexible I/O targeting to optimize system architecture.
Key Features and Technical Specifications
System Architecture
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Supports a System Power Supply and Remote I/O Unit on an 8-wide I/O carrier
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Accommodates up to 8 simplex I/O cards per carrier
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Two unit options: Original RIU and Next Generation RIU2 (drop-in compatible back to DeltaV v13.3.1)
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Shared I/O targeting: each Remote I/O Unit can support up to 4 controllers, allowing cards to be assigned individually
Connectivity and Communication
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Supports up to 16 Remote I/O Units per DeltaV controller
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DeltaV system supports up to 300 Remote I/O Units across the network
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RIU2 provides dual 10/100 MB Ethernet ports for primary and secondary communication
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Full HART® data passthrough for remote device management via AMS Device Manager
Mounting and Compliance
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Plug-and-play modular system for easy expansion
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Approved for remote installation in Class 1, Div 2 or ATEX Zone 2 hazardous areas
Applications
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Distributed process control in chemical, oil & gas, and pharmaceutical plants
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Integration of smart HART® devices into DeltaV control systems
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Cost-effective solution for scalable remote I/O deployment
FAQ
Q: Can I replace an original RIU with the RIU2 in an existing DeltaV system?
A: Yes, the RIU2 is fully backward compatible with systems running DeltaV v13.3.1 and later.
Q: How many controllers can a single Remote I/O Unit support?
A: Each Remote I/O Unit supports up to 4 controllers, allowing flexible I/O allocation.
Q: Is the unit suitable for hazardous environments?
A: Yes, it is approved for Zone 2 and Class 1, Div 2 installations.
