Running RISCterm
1.
For Win 95/98, run the program RISCTerm.exe found in Start | Programs | RDAG12-8. For DOS
or Win 3.x, look in C:\RDAG12-8.
2.
Enter the base address of the COM card, then enter the IRQ. In Windows, this information is
available by viewing the ControlPanel | System | DeviceManager | Ports | Properties | Resources.
3.
Once you’re in RISCTerm, verify a selection of 9600 baud (factory default for the Pod). The bar
across the bottom of the screen should say 7E1.
4.
Type a few letter characters. You should see them print to the screen.
5.
Proceed to the section, “
TALKING TO THE POD
”.
Talking to the Pod
1.
(Picking up from step 5 of “
RUNNING WINRISC
” or “
RUNNING RISCTERM
”) Press the Enter
key a few times. You should receive, “Error, use ? for command list, unrecognized command:” This
is your first indication that you’re talking to the Pod. Repeatedly pressing the Enter key should
return this message each time. This is a correct indication.
2.
Type “?” and press enter. You should receive back “Main Help Screen” and three possible other
menus to access. You could type “?3" then press Enter, and receive a menu back from the Pod
regarding Analog Output Commands. If you’re receiving these messages, you again know that you
are communicating effectively with the Pod.
3.
Connect a DMM, set for 20VDC range, across pins 1 (+) and 2 (-) of the Pod’s screw terminal block.
Type “AC0=0000,00,00,01,0000" and [Enter]. You should receive a CR (carriage return) from the
Pod. This command sets Channel 0 for the 0-10V range.
4.
Now type “A0=FFF0" and [Enter]. You should receive a carriage return from the Pod. This
command causes Channel 0 to output the commanded value (FFF in hex = 4096 counts, or 12-bit,
Full Scale). You should see the DMM read 10VDC. Calibration is discussed in the following
section.
5.
Type “A0=8000” and [Enter] (800 in hex = 2048 counts, or 12-bit, Half Scale). You should receive
a carriage return from the Pod. You should see the DMM read 5VDC.
6.
You’re now ready to begin your development and write your application program.
Note: If you’re ultimately going to use the “Isolated Mode”, be sure that you put the
jumpers on the processor board back to the “ISO” positions. Also ensure that you
wire the power up correctly to support that mode. It requires 12V of local power,
and 12V of isolated power. Isolated Power can be supplied from the computer’s
power supply, or some other central supply. Current draw on this source is
negligible, so voltage drop in the cable is of no consequence. Be aware that the High
Power Pod version (RDAG12-8H) re12V, Gnd, and -12V for “Local Power”.
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Manual MRDAG12-8H.Bc2