bumpless transfer only if I is on

src/tankdemo.jl

@@ -41,13 +41,15 @@ function runprocess(;simulated=false, webservice=true, port=8000, σ = 0.001, du
                 onv = Int.([gui[s]=="On" for s in [:pOn, :iOn, :dOn]])
                 rv = pidcontroller(r, y, onv)
                 if gui[:mode]=="Automatic"
-                    gui[:u] = clamp(round(rv,2), 0, 1) #u's constructor has a dummy graphic so this is fine
+                    gui[:u] = clamp(round(rv,2), 0, 1) #u's constructor has only a dummy graphic so this is fine
                     control(P, rv)
                 elseif gui[:mode]=="Manual"
                     control(P, gui[:u])
                     #bumpless transfer:
+                    if gui[:iOn]=="On"
                         pidcontroller.I = gui[:u]-(pidcontroller.Tot-pidcontroller.I)
                     end
+                end
                 push!(gui, y, 1)
                 push!(gui, r, 2)
                 push!(gui, pidcontroller.P, 3)