ARLACON MC300
MC300MAE
Control system
User's manual
25
Product code 1003418
3. POWER UP AND TESTING
To start your MC300 system please follow the procedures in this chapter. Assume that the
system is now connected to power supply and a programming terminal (PC) and the
connections have been made for possible i/o system.
Start the terminal and possible communications program for full duplex on-line
communication.
3.1 SWITCHING ON POWER
Start the control unit by turning on the 24V supply. Control units with display will turn on the
keyboard leds for 1 s and the display cursor will appear on the display.
If a McWay i/o system is connected, some of the led lamps on the i/o modules will turn on.
If not otherwise programmed in a WAKEUP.EX file, the system will display a message:
McDos 2.1
D8:/>
starting the McDos operating system of the MC300. The prompt D8:/> shows that the current
drive and path is D8:/. There are 3(4) memory devices in the MC300 relevant for McDos all
using a similar file and directory structure as found on diskettes etc. These are named:
D2:
CMOS RAM drive with configurable size (when 1M RAM installed)
D6:
Flash eprom drive programmable from within McDos/McBasic
D7:
CMOS RAM drive with configurable size
D8.
EPROM drive (read-only) with boot information and system files
The boot program will scan the devices in this order looking for MCDOS.CK file (resident part
of McDos). If found, the respective MCDOS.CK is started. If no MCDOS.CK is found, the
default McDos version included in the boot section of D8: is started. At this phase the drive
where MCDOS.CK was found, or D8:, is set as the current drive (D0:, default drive for file
operations).
After starting, McDos scans again the memory devices for a file named WAKEUP.EX (the
start-up batch file). If found, McDos executes the commands contained in the file. McDos
leaves the drive where it finds WAKEUP.EX as the current drive (D0:) unless not otherwise set
by the commands in the file.
The default WAKEUP.EX is located at D8: containing the following commands:
PATH D6:/,D7:/,D8:/
BAS300
These commands set the search path for executable files (.CK and .EX) to include roots of all
memory devices and starts the McBasic version for MC300.
The programmer may want to override this file by saving his own WAKEUP.EX in D7: during
development work and saving the final version of it in D6: after completing the work. WAKEUP
files can be edited with the McDos TX text editor.
