reference to Signal function

1. 004
   Current rev 02

   28 Jun 2022 · 13:01 UTC by BATCH 00000794

   Show source files View on cdd.iec.ch ↗
2. 004
   superseded rev 01

   28 Mar 2018 · 07:26 UTC by BATCH 00000762

   ⏱ View this version ⇄ Diff vs current ↓ Version JSON

   Show source files View on cdd.iec.ch ↗
3. 003
   superseded rev 01

   20 Mar 2018 · 12:23 UTC by BATCH 00000755

   ⏱ View this version ⇄ Diff vs current ↓ Version JSON

   Show source files View on cdd.iec.ch ↗
4. 002
   superseded rev 04

   01 Mar 2017 · 14:51 UTC by BATCH 00000732

   ⏱ View this version ⇄ Diff vs current ↓ Version JSON

   Show source files View on cdd.iec.ch ↗
5. 002
   superseded rev 03

   28 Sep 2016 · 09:59 UTC by BATCH 00000728

   ⏱ View this version ⇄ Diff vs current ↓ Version JSON

   Show source files View on cdd.iec.ch ↗
6. 002
   superseded rev 02

   31 Aug 2016 · 20:15 UTC by BATCH 00000725

   ⏱ View this version ⇄ Diff vs current ↓ Version JSON

   Show source files View on cdd.iec.ch ↗
7. 002
   superseded rev 01

   23 Mar 2016 · 15:01 UTC by BATCH 00000715

   ⏱ View this version ⇄ Diff vs current ↓ Version JSON

   Show source files View on cdd.iec.ch ↗
8. 001
   superseded rev 02

   18 Jun 2014 · 13:41 UTC by BATCH 00000702

   ⏱ View this version ⇄ Diff vs current ↓ Version JSON

   Show source files View on cdd.iec.ch ↗
9. 001
   superseded rev 01

   08 Apr 2014 · 17:25 UTC by BATCH 00000699

   ⏱ View this version ⇄ Diff vs current ↓ Version JSON

   Show source files View on cdd.iec.ch ↗

IEC CDD records every published revision of each entity — version number, status, timestamp, and the change request that introduced it. OpenCDD captures the full chain of custody from cdd.iec.ch; the entry marked Current is the one rendered on this page.