Moeller XControl XC600, Hardware, Engineering And Function Description, Page: 25 / 78

07/04 AWB2700-1428GB
Design
21
Operating mode switch (OMS)
The operating mode switch defines the status that the controller
will take up when the supply power is switched on. If you change
the switch position while the power supply is switched on, the PLC
will switch to the new status.
You can select one of four settings. After the power supply voltage
is switched on, the PLC executes the following function:
The following table shows the reaction of the PLC when the
operating mode selector switch is changed. Requirement: the
power supply must remain switched on.
Menu selector switch (MSS)
You can use the menu selector switch to select a function from the
menu overview in the LCD display. The present setting is indicated
by the cursor (a flashing arrow on the left edge). The menu selector
switch is a turn-and press switch. When you turn the knob, the
cursor will move up or down. When the cursor indicates the
required function, press the knob in order to select the function
concerned.
Battery
The battery is used to back up the clock module.
As the XC600 PLC can only be used in conjunction with an UPS
unit, the backup of retentive data is ensured. This data will be
saved on the Flash disk in the CPU. The time is stored in a battery-
buffered RAM module.
LEDs
The three LEDs indicate the status of the controller.
CompactFlash card
The CompactFlash card is used for saving programs and recipes.
You can use the operator module to copy these programs and
recipes from the hard disk to the CompactFlash card. The contents
of the CompactFlash card can be shown on the display.
Only type I or II cards can be used.
The CompactFlash card can only be fitted or removed when the
power supply for the XC600 PLC is switched off! A handling error
here may cause a system crash or damage to the card.
Position Function
RUN The user program is processed. A debugging or status
change initiated from the PC is not possible.
RUN-P The user program is processed. All access functions are
available via the programming device.
STOP The user program is not processed. A program can be
loaded, started or stopped.
MRES The simple variables and POU variables and those
assigned with RETAIN will be initialised.
Change Reaction
STOP r RUN-P The user program is started and the (POU)
variables are unchanged. All access
functions are available via the programming
device.
RUN-P r RUN The user program is processed. A
debugging or status change is not possible.
RUN-P
r
STOP The user program is stopped.
STOP r MRES r STOP The PLC remains in STOP status. The simple
variables and POU variables and those
assigned with RETAIN will be initialised.
h Only change the back-up battery with the power supply
switched on, otherwise the time data will be lost.
STOP The user program is not running.
RUN The user program is running.
SF SF (collective (= system) fault) flashes when the
operating system is started, but changes to a continuous
light if there is no bootable program loaded in the
controller.