Description of the RFC 4072S
108580_en_02 PHOENIX CONTACT 61 / 272
2.12 Mode selector switch
The mode selector switch is used to define the operating state of the standard controller.
The mode selector switch does not influence the operating state of the safety-related
PROFINET controller (SPNS).
The RUN/PROG and STP (STOP) positions have a toggle button function, and the MRESET
position has a pushbutton function. After the switch has been released in the MRESET posi-
tion, it returns to the STOP position.
Figure 2-29 Mode selector switch
Table 2-10 Operating modes of the RFC
Operating
mode
Explanation
RUN/PROG The application program is in the “Run” state.
The PLCnext Engineer software can be used for program and configu-
ration modifications.
The monitoring and online functions can be used.
STOP The application program of the standard controller is in the “Stop” state.
MRESET Retain data and the application program is deleted.
Press the mode selector switch as follows to delete the retain data and
the application program:
• Hold the switch in the MRESET position for three seconds.
• Release the switch for less than three seconds.
• Hold the switch in the MRESET position for three seconds.
WARNING: PROFIsafe process data exchange inter-
rupted
If the operating mode switch is in the STOP position, process
data between F-Host and F-Devices is not exchanged in the
network via PROFIsafe. The F-Devices assume the safe
state (failure state) after the defined watchdog time has
expired.
107586A009
RUN/PROG
STP
MRESET
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