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Fig. 4.11 Service mode jumpers
RUN-STOP mode
In RUN-STOP
mode the execution of the program is interrupted. It can be useful if the
system menu is unavailable, e.g. if the corrupted program leads to device malfunction.
Set XP2 jumper to activate RUN-STOP mode.
In RUN-STOP mode, a new program can be uploaded to the device.
In this mode the device can be used only as a slave and the network variables are disabled.
DOWN mode
DOWN mode is necessary for troubleshooting if a firmware update was unsuccessful (power
outage, communication errors etc.). In this mode the firmware update can be forced. See
ALP Help for further details about firmware update.
Set XP3 jumper to activate DOWN mode.