diff --git a/Buildings/Controls/OBC/CDL/Continuous/PID.mo b/Buildings/Controls/OBC/CDL/Continuous/PID.mo
index 8f0bd2ad2cd..4c6f0eef2ed 100644
--- a/Buildings/Controls/OBC/CDL/Continuous/PID.mo
+++ b/Buildings/Controls/OBC/CDL/Continuous/PID.mo
@@ -564,7 +564,7 @@ that can reset the output should be used.
The derivative of the control error d ⁄ dt e(t) is approximated using
-d⁄dt x(t) = (e(t)-x(t)) Td ⁄ Nd,
+d⁄dt x(t) = (e(t)-x(t)) Nd ⁄ Td,
and
@@ -625,6 +625,12 @@ American Society of Heating Refrigerating and Air-Conditioning Engineers Inc. At
revisions="
-
+May 6, 2022, by Michael Wetter:
+Corrected wrong documentation in how the derivative of the control error is approximated.
+This is for
+issue 2994.
+
+-
November 12, 2020, by Michael Wetter:
Reformulated to remove dependency to Modelica.SIunits.
This is for
diff --git a/Buildings/Controls/OBC/CDL/Continuous/PIDWithReset.mo b/Buildings/Controls/OBC/CDL/Continuous/PIDWithReset.mo
index 5e7d07a288d..d4df9cc44e3 100644
--- a/Buildings/Controls/OBC/CDL/Continuous/PIDWithReset.mo
+++ b/Buildings/Controls/OBC/CDL/Continuous/PIDWithReset.mo
@@ -556,7 +556,7 @@ Whenever the value of boolean input signal trigger changes from
The derivative of the control error d ⁄ dt e(t) is approximated using
-d⁄dt x(t) = (e(t)-x(t)) Td ⁄ Nd,
+d⁄dt x(t) = (e(t)-x(t)) Nd ⁄ Td,
and
@@ -617,6 +617,12 @@ American Society of Heating Refrigerating and Air-Conditioning Engineers Inc. At
revisions="
-
+May 6, 2022, by Michael Wetter:
+Corrected wrong documentation in how the derivative of the control error is approximated.
+This is for
+issue 2994.
+
+-
April 30, 2021, by Michael Wetter:
Corrected error in non-released development version
when reset trigger is true.
diff --git a/Buildings/package.mo b/Buildings/package.mo
index b7f652ca904..8b158c23c67 100644
--- a/Buildings/package.mo
+++ b/Buildings/package.mo
@@ -331,13 +331,26 @@ units are wrong or errors in documentation):
| Buildings.Applications
+ |
+
| Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.IntegratedPrimaryLoadSide
|
Removed duplicate instances of blocks that generate control signals.
This is for
Buildings, issue 2963.
|
-
+
+| Buildings.Controls.OBC.CDL
+ |
+
+ Buildings.Controls.OBC.CDL.PID
+ Buildings.Controls.OBC.CDL.PIDWithReset
+ |
+ Corrected wrong documentation in how the derivative of the control error is approximated.
+ This is for
+ Buildings, issue 2994.
+ |
+
| Buildings.Experimental
|