Accessing stepping motors by functions

The following example uses functions:

#!/usr/bin/perl
#
# stepping motor example, using functions
#
use Spectra; 
#
# fetch motor parameters
#
print "\n"; 
print " Name mot12 \n"; 
print " Position " . gmup( "mot12") . "\n"; 
print " Accel " . gma( "mot12") . "\n"; 
print " Base  " . gmb( "mot12") . "\n"; 
print " Slew " . gms( "mot12") . "\n"; 
print " Settle time " . gmst( "mot12") . "\n"; 
print " Unit_backlash " .  gmub( "mot12") . "\n"; 
print " Unit_limit_min " . gmuli( "mot12") . "\n"; 
print " Unit_limit_max " . gmula( "mot12") . "\n"; 
print " Ramp_units " . gmru( "mot12") . "\n"; 
print " Ramp_steps " . gmrs( "mot12") . "\n"; 
#
# change motor parameters
#
$ret = smb( "mot12", 20);    # base rate
$ret = sms( "mot12", 50000); # slew rate
#
# fetch the current positions of mot11 and mot12
#
$pos11 = gmup( "mot11");
$pos12 = gmup( "mot12");
#
$new_pos11 = $pos11 + 1; 
$new_pos12 = $pos12 + 1; 

$ret = move( "mot11" => $new_pos11, 
             "mot12" => $new_pos12);
#
# single steps movements
#
$ret = step_up( "mot11", "mot12");
$ret = step_down( "mot11", "mot12");
#
# calibration
# 
$ret = calibrate( name => "mot11",    
                  unit => 1.234,
                  nolog => 1,           # optional, def.: 0
                  noconfirm => 1,       # optional, def.: 0
                  keeping_limits => 0); # optional, def.: 1

See the section 6.14 for the complete list of motor functions.