What Is the Emerson ROC? Introduction to Remote Operations Controllers
Key Takeaway
The Emerson ROC is a flow computer and remote automation controller family from Emerson Automation Solutions for natural gas measurement, custody transfer, and pipeline SCADA.
Quick Answer
The Emerson ROC (Remote Operations Controller) is a family of flow computers and remote automation controllers manufactured by Emerson Automation Solutions. The product line includes ROC800 (full-featured modular flow computer), ROC300 (compact legacy RTU), and FloBoss (application-specific variants). ROC devices perform AGA-certified flow calculations and are configured using ROCLINK 800 software.
Who Makes the Emerson ROC?
Emerson Automation Solutions manufactures the ROC product line, which has roots in Fisher Controls and Bristol Babcock. The ROC is part of Emerson's broader gas measurement portfolio alongside Daniel and Micro Motion products.
What Are the Different ROC Platforms?
- ROC800 — Full-featured modular flow computer with expandable I/O, FST programming, and multi-protocol communications
- ROC300 (ROC306, ROC312) — Compact legacy RTUs with onboard I/O, still widely in service
- FloBoss 107 — Low-power, solar-compatible pipeline RTU
- FloBoss S600 — High-accuracy fiscal measurement
How Does the ROC Compare to Competing Products?
The ROC800 competes with ABB Totalflow XFC/XRC for flow measurement and SCADAPack for general-purpose RTU applications. Unlike the Bristol FB300 (a separate Emerson product), the ROC uses ROCLINK 800 software and FST programming rather than OpenBSI.
What Makes the ROC Unique?
- Native EFM (Electronic Flow Measurement) report format
- Tight integration with Emerson OpenEnterprise SCADA
- FST (Function Sequence Table) programming for custom automation
- Multi-variable I/O module combining DP, SP, and temperature in one slot
Frequently Asked Questions
A flow computer and remote automation controller for oil and gas — performs AGA flow calculations, stores archives, and communicates with SCADA via ROC protocol, Modbus, and DNP3.
ROC800 is a full-featured modular flow computer for complex applications. FloBoss devices are optimized for specific use cases — FloBoss 107 for low-power pipeline RTU, FloBoss S600 for high-accuracy fiscal measurement.
Emerson Automation Solutions, with roots in Fisher Controls and Bristol Babcock.
No. Different hardware, software (ROCLINK 800 vs OpenBSI), and programming (FST vs Bristol BASIC). Both are Emerson products targeting different customer bases.