From 6fa7cf88673a0fda0b2973e678cfd0d62a64e182 Mon Sep 17 00:00:00 2001
From: dmc <markus.zolliker@psi.ch>
Date: Tue, 22 Oct 2024 10:28:58 +0200
Subject: [PATCH] dblctrl: smart selection of mode (up, down, stable)

when switching from inactive to active
---
 tcl/drivers/trun.tcl | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/tcl/drivers/trun.tcl b/tcl/drivers/trun.tcl
index 7390b86..6597218 100644
--- a/tcl/drivers/trun.tcl
+++ b/tcl/drivers/trun.tcl
@@ -447,7 +447,16 @@ proc trun::read_run {} {
   }
   if {$dblctrl} {
     if {[hval [sct]/dblctrl/mode] == 0} { # inactive -> stable
-      hupdate [sct]/dblctrl/mode 1
+      set tol [hvali [sct]/tolerance]
+      set tg [silent $tsample sct target]
+      if {$tg > $tsample + $tol} {
+         set dmode 2  ;# up
+      } elseif {$tg < $tsample - $tol} {
+         set dmode 3  ;# down
+      } else {
+         set dmode 1  ;# stable
+      }
+      hupdate [sct]/dblctrl/mode $dmode
     }
     set value $tsample
   } else {