How do I calculate how many edge gateways I need for my plant?

The Edge Gateway Coverage calculator divides your machines and their tag counts by the throughput and port capacity of each gateway, accounting for protocol conversion overhead. Pair it with Machine Connectivity Rate to see what percentage of the floor is reachable and PLC Data Availability to confirm the controllers can actually serve data. This prevents undersizing gateways and discovering dropped tags after installation.

How much will a data historian cost to store my telemetry?

Historian cost scales with tag count, sample rate, and retention. The Data Historian Storage Cost and Cloud Historian Cost calculators multiply Telemetry Event Rate by retention period and cost per point or per GB. High-frequency vibration or power tags dominate storage, so many teams tier retention, keeping raw data briefly and aggregates longer. Run MQTT Data Cost too if you are streaming over metered cellular links.

How many OPC UA tags do I need to map per machine?

Tag count depends on what you monitor, from a few status and counter tags for basic OEE up to hundreds for full process and condition monitoring. The OPC UA Tag Coverage calculator compares tags mapped against tags available on the PLC, and Tag Mapping Workload estimates the engineering hours. Track OT Data Completeness so you know the mapped tags actually cover the metrics your dashboards and analytics need.

How do I size industrial network bandwidth for IIoT traffic?

Bandwidth demand comes from Telemetry Event Rate times payload size across all connected devices. The Industrial Network Bandwidth calculator sums that load and compares it to link capacity, leaving headroom for bursts. Combine with Network Latency Cost and Dashboard Refresh Latency to confirm control and monitoring stay responsive. Undersized OT networks show up as dropped events and Data Loss Exposure during peak production.

What is the ROI of an IIoT or condition monitoring program?

The IIoT ROI calculator weighs SCADA Upgrade Cost, sensor and gateway spend, and ongoing Gateway Support Cost against Remote Monitoring Savings, avoided downtime, and Edge Compute Payback. Most value comes from Condition Monitoring Coverage catching failures early and from remote diagnostics cutting truck rolls. Quantifying Data Loss Exposure avoided also strengthens the case where traceability or OEE reporting is at stake.

How do I reduce alarm floods when connecting SCADA systems?

Alarm floods happen when every tag becomes an alarm without prioritization. The Alarm Rationalization Workload calculator estimates the effort to review and rationalize alarms against a standard like ISA-18.2, targeting a manageable rate such as under 150 alarms per operator per day. Combine with SCADA Screen Utilization to see which displays operators actually use, so rationalization effort lands where it improves response instead of everywhere at once.

Manufacturing calculator category

IIoT, SCADA & Edge Connectivity calculators

This category covers the numbers behind connecting the plant floor: how many machines you can reach, how many OPC UA tags to map, what a data historian will cost to store, and whether an IIoT program pays back. It is built for controls engineers, OT and IIoT architects, and plant IT teams sizing connectivity, storage, and network capacity for connected machine projects.

What this hub covers

Free calculators for IIoT ROI, SCADA upgrade cost, edge gateway coverage, OPC UA tag mapping, historian storage, network bandwidth, latency, and data loss risk.
Browse iiot, scada & edge connectivity calculators for manufacturing planning, quoting, quality, capacity, and operations decisions.

Best calculators in this category

IIoT ROI: Estimate the payback period in years on an IIoT, machine monitoring, or edge connectivity project from project cost, annual operating savings, and the annual cost to keep the connected platform running.
SCADA Upgrade Cost: Estimate the loaded cost of a SCADA upgrade across HMI servers, polled tags, and screens from the unit cost per HMI server (or seat), the tag count loaded onto the upgrade, the share of tags actually migrated, and a fixed engineering and cutover adder.
Edge Gateway Coverage: Estimate the share of plant assets covered by deployed edge gateways from the count of assets connected through edge gateways, total assets in scope, and the program coverage target.
Machine Connectivity Rate: Estimate the share of plant machines that are publishing live data right now from the count of machines actively reporting against the total connectable machines, against the program target.
OPC UA Tag Coverage: Estimate the share of process tags exposed through OPC UA from the count of tags published by OPC UA servers against the total tags identified in the tag dictionary, against the program coverage target.
MQTT Data Cost: Estimate monthly MQTT or Sparkplug B data spend from messages published per month, average payload size in KB, the share that actually travels over billed network (cellular or cloud egress), and a fixed broker subscription or hosting cost.
Sensor Installation Cost: Estimate the loaded cost of a sensor rollout (vibration, temperature, current, pressure) from sensor count, installed unit cost, the share of installs that complete on the first attempt, and a fixed program engineering and commissioning adder.
Data Historian Storage Cost: Estimate annual on-prem historian storage cost from total tags written, the storage cost per tag-year (covering disk, replication, and backup), the storage compression and retention efficiency, and a fixed historian server and license adder.
Tag Mapping Workload: Estimate the engineering hours to map and validate plant tags between PLCs, SCADA, OPC UA, historian, and MES from the tag count being mapped, the engineer mapping rate (tags mapped per minute), and an allowance for PLC review, naming standardization, and tag testing.
PLC Data Availability: Estimate how many PLC tags can be polled cleanly per period from tags polled per scan cycle, planned scan cycles in the period, scanner uptime, and the share of polls that return fresh data without retry.
Edge Compute Payback: Estimate the payback period in years on an edge compute investment (industrial PC, edge gateway with analytics, on-machine AI box) from project cost, annual savings (cloud egress avoided, latency-sensitive uptime, local control wins), and annual operating cost.
Alarm Rationalization Workload: Estimate alarm rationalization hours from the alarm count to review, the team rate (alarms reviewed per hour against ISA-18.2), and an allowance for documentation, MoC, and operator validation.

Common manufacturing problems solved

IIoT
SCADA
edge connectivity
OPC UA
MQTT
industrial data
PLC
historian
edge gateway
industrial network

Live market signals for this industry

Global copper trades at $13,552 per tonne (IMF via FRED, Jun 2026), up 37.8% in a year, and U.S. industrial electricity averages 8.71 cents per kWh. Both feed electrified-hardware unit economics.

Category questions

How do I calculate how many edge gateways I need for my plant? The Edge Gateway Coverage calculator divides your machines and their tag counts by the throughput and port capacity of each gateway, accounting for protocol conversion overhead. Pair it with Machine Connectivity Rate to see what percentage of the floor is reachable and PLC Data Availability to confirm the controllers can actually serve data. This prevents undersizing gateways and discovering dropped tags after installation.
How much will a data historian cost to store my telemetry? Historian cost scales with tag count, sample rate, and retention. The Data Historian Storage Cost and Cloud Historian Cost calculators multiply Telemetry Event Rate by retention period and cost per point or per GB. High-frequency vibration or power tags dominate storage, so many teams tier retention, keeping raw data briefly and aggregates longer. Run MQTT Data Cost too if you are streaming over metered cellular links.
How many OPC UA tags do I need to map per machine? Tag count depends on what you monitor, from a few status and counter tags for basic OEE up to hundreds for full process and condition monitoring. The OPC UA Tag Coverage calculator compares tags mapped against tags available on the PLC, and Tag Mapping Workload estimates the engineering hours. Track OT Data Completeness so you know the mapped tags actually cover the metrics your dashboards and analytics need.
How do I size industrial network bandwidth for IIoT traffic? Bandwidth demand comes from Telemetry Event Rate times payload size across all connected devices. The Industrial Network Bandwidth calculator sums that load and compares it to link capacity, leaving headroom for bursts. Combine with Network Latency Cost and Dashboard Refresh Latency to confirm control and monitoring stay responsive. Undersized OT networks show up as dropped events and Data Loss Exposure during peak production.
What is the ROI of an IIoT or condition monitoring program? The IIoT ROI calculator weighs SCADA Upgrade Cost, sensor and gateway spend, and ongoing Gateway Support Cost against Remote Monitoring Savings, avoided downtime, and Edge Compute Payback. Most value comes from Condition Monitoring Coverage catching failures early and from remote diagnostics cutting truck rolls. Quantifying Data Loss Exposure avoided also strengthens the case where traceability or OEE reporting is at stake.

Last reviewed 2026-05-12.