Timer interrupt taking a while to start - Simulation Only

[medelec35]

When running the attached flowchart (not adjusted simulation speed from Normal) the timer interrupt takes 1min 47 secs to start working.
I guess actual time will PC Specs specific.
PC tried this on is:

Code: Select all

OS Name	Microsoft Windows 7 Professional
Version	6.1.7601 Service Pack 1 Build 7601
OS Manufacturer	Microsoft Corporation
System Manufacturer	Hewlett-Packard
System Model	HP EliteBook 840 G2
System Type	x64-based PC
Processor	Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz, 2201 Mhz, 2 Core(s), 4 Logical Processor(s)
BIOS Version/Date	Hewlett-Packard M71 Ver. 01.09, 01/09/2015
SMBIOS Version	2.7
Installed Physical Memory (RAM)	8.00 GB
Total Physical Memory	7.88 GB
Available Physical Memory	3.22 GB
Total Virtual Memory	15.8 GB
Available Virtual Memory	11.6 GB

Takes much longer if move slide to 50Hz, then save and refresh due to the known interrupt bug.
It could be part of the same bug, except for other flowchart interrupt worked straight away.

Martin