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35 industrial automation calculators

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iFIX & Proficy SCADA · 5

iFIX PDB 15AL scaling

15AL scaling in the iFIX process database.

iFIX alarm queue sizing

Size the SCU queues, avoid overflow and suppress communication alarms.

iFIX & Historian sizing

CPU, memory, disk and operating system by tag count, client count and node role.

Proficy · iFIX compatibility

Operating system, database and compatible versions across 48 Proficy products.

Historian storage estimator

GB per day and per year from tag count, sample rate, compression and retention.

Schneider PLC · 1

Proworx NxT 4-20 mA scaling

4-20 mA scaling in Proworx and NxT (Momentum, TSX).

PAC RX3i & GE 90-30 · 2

PAC 90-30 / RX3i scaling

Machine Edition scaling for 90-30 and PAC RX3i.

ISA PID to Profibus DP · Danfoss VLT

ISA PID to Danfoss FC300 / VLT2800 drive over Profibus.

Siemens PLC · 6

Siemens analog input · mA ↔ Int ↔ %

4-20 mA or 0-20 mA to the S7-1200/1500/300 Int value, both ways, with percent and the over-range table.

FB editor & instance generator

Define your block's inputs and outputs and where each tag comes from; then generate every instance in STL.

TIA Portal · variable table

Simulator of the TIA Portal variable table.

TIA Portal · DB editor

Online data block editor.

Siemens S7-1200/1500/300 scaling

Analog scaling in Step7 and TIA Portal.

Siemens LOGO! scaling

AI and 0-10 V scaling on the LOGO!.

Other scaling tools · 1

Wonderware InTouch scaling

Raw 0-32767 ↔ engineering units, with the exact Tagname Dictionary fields.

Industrial networks · 3

OT subnet calculator

IPv4 subnets, VLSM and an addressing plan per plant cell.

Profibus DP segment

Max length per baud rate, repeaters, stubs and termination.

Profinet / Ethernet load

Cycle time, bandwidth and bus load per device.

Data & protocols · 3

Modbus addressing

4xxxx ↔ zero-based offset, function code, PDU and vendor equivalence.

IEEE-754 float & word order

Real ↔ registers in ABCD, CDAB, BADC and DCBA; 16/32-bit integers.

Modbus RTU CRC-16 & frame

Build and check RTU frames, compute the CRC and decode exceptions.

Instrumentation · 4

4-20 mA loop

Allowable load resistance, loop burden and voltage margin.

RTD & thermocouples

Pt100/Pt1000 (IEC 60751) and types K, J, T, E (NIST ITS-90), Ω/mV ↔ °C.

DP flow square root

Square-root extraction, low-flow cutoff and linearisation.

Span error & accuracy

% of span vs % of reading, A/D resolution and total loop uncertainty.

Panels & power · 4

Current transformer scaling

From the 0-5 A secondary to the real current, with the standard ratio list, mA and PLC raw value.

Panel thermal sizing

IEC 60890 dissipation and selection of fans or air conditioning.

Voltage drop & cable size

Minimum mm² and AWG size, % drop and losses, copper or aluminium.

Motor current & cable

Motor rated current and recommended cable size.

OT cybersecurity · 6

N2QL query builder · Nozomi

Build a Guardian, CMC or Vantage query step by step, with the official 20-query library and the language cheat sheet.

Nozomi sensor sizing

Nodes, links and variables into network elements, and the Guardian model that fits with its headroom.

Purdue zones for Nozomi

From your subnets to the Zone Configuration list, with the conduit matrix and the query that finds level crossings.

SPAN, TAP and capture retention

Whether the mirror port oversubscribes, and how much continuous pcap fits on the sensor's disk.

Protocols Guardian supports

Search the 184 protocols on the support list, by vendor or by name.

IEC 62443 zones & conduits

Purdue model, target security level and a checklist of the 7 FRs.