You can find out the running of multiple OScam, for example, with the help of the top or htop command. This second htop command / system tool is better and clearer. Sometimes it is necessary to install the htop tool with the help of the opkg system tool (package manager). In this htop command, when run, switch the view to a tree structure. There you will see how many Oscams are running. Of course, only count processes that are not threads of the root process.
Thank you