
17
Magtrol Model 6200 Open Loop Dynamometer Controller
Chapter 5 – Computer Controlled Operation
OPERA
TION
Command
Category
Command
Code
function
explanation
Communications
OA
Prompts to return to
auxiliary input data
string
“Output Auxiliary” prompt to return
the value at the AUX INPUT x AUX
SCALING factor.
Communications
OD
Prompts to return
speedtorque-direction
data string
“Output Data” prompt to return data
string with this format:
SxxxxxTxxxxxRcrlf or
SxxxxxTxxxxxLcrlf
R or L is the shaft direction indicator,
as viewed looking at the dynamometer
shaft, where:
R = right; clockwise (CW)
L = left; counterclockwise (CCW)
The speed will equal the displayed
value and the torque will be in the
same units as displayed on the front
panel.
Setup
M1
Enables front panel
controls
Use this command to enable front
panel control of most functions.
Setup
M0
Locks out front panel
controls
Use this command to lock out the front
panel controls, so that the Controller/
Readout settings can be changed
only by using the computer with either
the GPIB (IEEE-488) or the RS-232
interface.
note:
The brake ON/OFF switch on
the front panel still functions.
Setup
R
Resets as follows:
• Manual control ON
• Low data acquisition
rate
• Brake OFF
Use this command to cancel any
previous commands.
note:
These settings are the power-
on default settings.
Setup
UA#
Sets auxiliary input
scaling to #
This command sets the scaling factor
for the auxiliary input to # units/
volt. The range is 0.0 to 10000.0.
Programmed value # is not saved at
power down.
Setup
UE#
Sets encoder pulse
count to #
This command selects the pulse
count option for speed transducing.
The pulse count defaults to 60-bit if
out of range. The standard encoder
supplied with all Magtrol Load
Cell Dynamometers is 60 pulses/
revolution. Optional 600 and 6000
pulse encoders are available for low-
speed applications.
Codes for pulse count # are:
0 = 60-bit
1 = 600-bit
2 = 6000-bit
Programmed value # is not saved at
power down.