State diagram timer - leave out the timer in most diagram s you should model at a specific level of abstraction don t leave this level or your diagram will get bloated and readers will miss the point you re trying to make state clearly what case you are modelling if munication failure does p div div class b algotextcarousel id ce carousel 1283636059 2 div id slideexp1 dc1c3ec class b slideexp data wire i slideexp init b select i f selected o f active o data control id slideexp1 dc1c3e data appns serp data k 5353 1 data stk div class b overlay div id slideexp1 dc1c3echevrons prevbtn class btn disabled prev rounded bld data dir div class bg span span div div class vcac div style height 32px margin top 16px div class cr div div div div div div div id slideexp1 dc1c3echevrons nextbtn class btn disabled next rounded bld data dir div class bg span span div div class vcac div style height 32px margin top 16px div class.

cr div div div div div div div div class b viewport div class b slidebar id slideexp1 dc1c3e role list aria label please use arrow keys to navigate div class slide data dataurl data rinterval data appns serp data k 5348 1 tabindex 0 role listitem a href https softwareengineering stackexchange a 153566 h id serp 5347 1 div class b insideslide div class b text keep in mind that you are just drawing diagrams this is not coding in some graphic language if you use the timer mechanism in all your munication with the device just model it once a suggestion for this can be found at the end of this answer leave out the timer in most diagrams you should model at a specific level of abstraction div div class b textcarouselfooter div class b bestanswer best answer div div class b separator 183 div div class b upvote img class rms img src data image svg xml base64 phn2zyb4bwxucz0iahr0cdovl3d3dy53my5vcmcvmjawmc9zdmciihzpzxdcb3g9ijagmcaxniaxnii.