_FB_A In the Testee setting, click [...] : Step1: Set input
assignment Specific set [...] assignment Specific set
/rc.d/S01_link_devices and set the value [...] _MODEM_TTY_PFCXXX_LINK_NAME to /dev/ttyO3 . Set GSM
Button: Settings [...] . All settings
CODESYS Development System
. Breakpoints which were set