Custody transfer is where product - and money - changes hands, at LACT units and metered interconnects. The volumes recorded there settle payments, so collecting that data reliably from every point, and catching measurement faults fast, is not optional. Cloud SCADA brings custody data from dozens of remote points into one place.
Custody transfer monitoring software collects volume, flow rate, and measurement data from LACT units and flow computers across an operation, alarms on measurement faults or a stopped meter, and retains auditable records - so allocation and settlement data is complete and defensible, from a cloud dashboard.
A LACT unit and its flow computer calculate net volume corrected to standards and expose the results over Modbus or DNP3. The operational challenge is collecting that data reliably from many remote points for daily allocation. Merobix reads Modbus and DNP3 flow computers over cellular, so today's volumes from every custody point land in one dashboard, and the built-in historian retains the measurement record.
A meter that has stopped, a flow computer in alarm, or a BS&W spike are measurement problems that cost money the longer they go unnoticed. Alarming on flow-computer fault flags and abnormal rates surfaces them in seconds rather than at month-end reconciliation, when a discrepancy is far harder and costlier to resolve. See connecting flow computers for the integration detail.
Net and gross volumes, flow rates, and measurement data from LACT units and flow computers, plus fault flags. It alarms on measurement faults or a stopped meter and retains auditable records for allocation and settlement.
Yes. Flow computers expose data over Modbus and sometimes DNP3, which Merobix reads over a cellular gateway - so volumes from every custody point reach one dashboard without an on-premise measurement host.
By collecting complete daily volumes from every custody point into one place and retaining them in a historian, monitoring makes allocation and settlement data complete and defensible, and surfaces measurement faults before month-end reconciliation.
Yes. Merobix's built-in historian retains volumes, rates, and alarms over time, supporting auditable measurement records for custody and allocation.
Safety & engineering notice. This article is general educational information, not site-specific engineering, safety, or legal advice, and it does not reflect any particular facility. Standards and regulations (for example OSHA, API, IEC, ISO, NFPA, NIST, and NERC CIP requirements) change and vary by edition, jurisdiction, and application. SCADA and remote monitoring cannot verify physical isolation, atmosphere, lockout/tagout, permit status, or a safe go/no-go decision. Qualified personnel must perform site-specific engineering, hazard analysis, and safety review, and confirm current requirements with the authority having jurisdiction, before acting.
This page references the protocol specifications published by the organizations below. Editions, product capabilities, and documentation change over time - confirm current requirements and specifications directly with the source.
Last reviewed: July 27, 2026. Merobix is not affiliated with, endorsed by, or sponsored by these organizations; their names are used only to identify the standards and products discussed.
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