ADLINK PCI-8102 - Manual (Page 12)

Introduction 1
PCI-8102
1 Introduction
The PCI-8102 is an advanced 2-axis motion controller card with a
PCI interface. It can generate high frequency pulses (6.55MHz) to
drive stepper or servomotors. As a motion controller, it can provide
2-axis linear and circular interpolation and continuous interpolation
for continuous velocity. Also, changing position/speed on the fly is
available with a single axis operation.
Multiple PCI-8102 cards can be used in one system. Incremental
encoder interface on all four axes provide the ability to correct
positioning errors generated by inaccurate mechanical transmis-
sions. PCI-8102 features the position compare and trigger output
function which users can put the comparing points with ADLINK
library and sending the triggering pulse to other device. In addi-
tion, a mechanical sensor interface, servo motor interface, and
general-purposed I/O signals are provided for easy system inte-
gration.
Figure 1-1 shows the functional block diagram of the PCI-8102
card. The motion control functions include trapezoidal and S-curve
acceleration/deceleration, linear and circular interpolation between
two axes and continuous motion positioning, and 13 home return
modes. All these functions and complex computations are per-
formed internally by the ASIC, thus it can save CPU loading.
The PCI-8102 also offers three user-friendly functions. The
PCI-8102 can let users assign the card index with the DIP switch
setting. The value is within 0 to 15. It is useful for machine makers
to recognize the card index if the whole control system is very
huge. The emergency input pin can let users wire the emergency
button to trigger this board to stop sending pulse output once there
is any emergency situation happened. For security protection
design, users can set the 16-bit value into EEPROM. Users’ inter-
face program can uses this EEPROM to secure the software and
hardware in order to prevent piracy.