IT Process Automation

In ITPAM how can I limit the instances launched for a workflow? I have a scheduler which triggers a workflow every 5 minutes. However, sometimes the workflow takes longer to execute and multiple copies of workflow start in parallel.

It is creating problem and only one instance should be running at a time of that workflow.

Check out the Resource Operators and the Resource Object which will allow you to create a resource object that a process instance can take, only allowing the process to run when there is a resource available. 

Resources