Use case · Traceability
Production traceability
wattiot reads from the PLC over EtherNet/IP which reel sits on each revolver axis and gathers its tension, length and passes into one record per reel.
01The situation
A faulty reel comes back. Which axis was it wound on?
A winding line with two twelve-axis revolvers, E-1 to E-12. The revolver turns, each axis takes a reel, and the PLC knows at every instant which reel sits on which axis, at what tension and at what speed.
But that fact lives for an instant. When a reel comes back with a defect, rebuilding its history means cross-checking the MES, the PLC and the shift log by hand.
Every reel, with the axis it was made on.
TodayRebuilt by hand, if at all.
Tension, speed and length, per reel, not per hour.
TodayShift averages.
The axis that drifts, before the complaint.
TodayFound when the reel comes back.
02The schema
From the revolver to every reel's record.
The PLC already knows everything needed. wattiot Edge reads it over EtherNet/IP without changing its program, and wattiot Core sorts it by reel.
What you already have
- Revolver AE-5
- Revolver BE-11
- Reel_ID63452342
- Active_AxisE-5
- Upper_Tension38.2 N
- Speed119 m/min
What wattiot adds
- EtherNet/IP readsactive
- Local bufferready
- Encrypted uplinkTLS 1.3
- Reel
- Axis
- Winding active
- RevolversTwelve axes each. The revolver turns and each axis takes a reel.
- PLCKnows which reel sits on each axis, at what tension and at what speed.
- wattiot EdgeReads the PLC's tags over EtherNet/IP. Read-only: the program does not change.
- wattiot CoreOpens a context for every reel and every axis, and links them in time.
03From data to result
One reel, linked to every position it passes through.
Every change of id opens a «Reel» context; every turn of the revolver, an «Axis» context. Crossed in time, they say which axis each reel sat on and what the signals measured meanwhile.
- 1PLC signals
Winder
- Reel_ID…34163452342…343
- Active_AxisE-4E-5E-6
- Upper_Tension
Id, active axis, tension and speed, exactly as the PLC publishes them.
- 2Contexts
Contexts · timeline
- Reel…34163452342…343
- Axis · revolver AE-4E-5E-6
- Winding active
«Reel», «Axis» and «Winding active» open and close by themselves with each change.
- 3LinkReel × Axis
Reel 63452342
- Reel63452342
- Axis · revolver AE-5
- Winding active
- Upper tension
Reel × Axis: 63452342 was wound on E-5, from 14:12 to 14:31, in three passes.
- 4Breakdownlast 90 days
Breakdown · mean upper tension
- E-438.0 N
- E-538.2 N
- E-637.9 N
- E-941.6 N
Axis out of rangeE-9
Every KPI, per reel and per axis. The axis that drifts stands out.
04Spec sheet
What the installation takes.
For the technical lead: where each reading comes from, how it is read and what it becomes.
- Source
- The winding line's PLC
- Protocol
- EtherNet/IP (CIP), tag reads. Read-only
- Signals
- Reel id, active axis, upper and lower tension, speed and length
- Operational contexts
- «Reel» and «Axis» on value change; «Winding active» on a condition
- Link
- Reel × Axis, by overlap in time
- KPIs
- Mean tension, length and passes per reel; time per axis
- Reports
- Breakdown per reel and per axis, as PDF
- On site
- One wattiot Edge on the PLC's network
Does this look like your plant?
We will show you on a scenario like yours: what to connect first, what you will see and which plan fits.