11
To prevent accidental or unwanted changes to the program parameters, a provided jumper
may be installed across terminals 3 & 4. With this jumper installed, the numeric menu will
read “EP
nn
” instead of “OP
nn
”. All parameters can be viewed but no changes can be made.
2.1 Serial Port Programming
To change a parameter using the RS-232 serial port programming commands, connect a computer
terminal to the serial port cable. The terminal must have the proper Comm port settings to
communicate to the 1250B (see section 3.3). See Table 2.2 for a full listing of all programming
commands and syntax. At the command prompt, type a command followed by the new parameter
setting, using proper syntax as shown in Table 2.2. Typing the command only, without a new
parameter setting, will cause the 1250B to transmit the present setting for that parameter.
Table 2.2 Serial Programming Commands:
◊
=space
=enter
Command Syntax:
Function:
Explanation:
SETUP
Enter the Setup Mode
This command must be entered before
any other commands can be made.
EXIT
Re-starts the serial connection
Changes to comm. port settings will take
effect
RUN
Return to the Run Mode
Changes to settings will take effect
DISP
Displays all setup parameters
Each setup command is displayed with
the current parameter values following it
POS
Displays all current position
data
Angle, turns count, linear position, non-
linear position, tap position
RLYENA
◊
ON
Enables High/Low Relays
“
ON
” or “
OFF
” When enabled allows
setting relay limits
MODE
◊
nn
Scaled or segmented modes
See page 14 for details
COUNTS
◊
nn.nnn
Set counts per turn
n
= a floating-point number, 5 digits max.
LEFTDIG
◊
n
Set number of digits to the left
of the decimal point
n
= an integer from 0 to 5
ANAMIN
◊
nn.nnn
Set position value for minimum
analog output
n
= a floating-point number, 5 digits max
ANAMAX
◊
nn.nnn
Set position value for maximum
analog output
n
= a floating-point number, 5 digits max
RLYHIGH
◊
nn.nnn
Set high relay limit
n
= a floating-point number, 5 digits max
RLYLOW
◊
nn.nnn
Set low relay limit
n
= a floating-point number, 5 digits max
SETPRE
◊
nn.nnn
Set preset position value
n
= a floating-point number, 5 digits max
TURNSF
◊
nn.nnn
Set Rotation Rate Filter
Threshold (page 12)
n
= a floating-point number, 5 digits max
FLTTH
◊
nn.nnn
Set Averaging Filter Threshold
n
= a floating-point number, 5 digits max
FDPTH
◊
nn.nnn
Set Averaging Filter Depth
n
= a floating-point number from 0 to 128
LDPRE
Load preset pos. into memory
Must be done for SETPRE to take effect
CLRPRE
Clear preset
Cancels the effect of SETPRE
TADD
◊
x.xxxx
◊
yy.yyy
Add a data point pair to the
Non-Linear Conversion Table
Will possibly re-number entries in the
table (X=Degrees, Y= Conv. Value)
TDUMP
Displays all data point pairs in
the N.L. Conversion Table
Each data point pair displayed is given a
number