The
display, keypad, three LED light bars and a pair of machine start/stop
pushbuttons are mounted on a separate operator interface board which can be
plugged into the front of the SBC‑200B, or remotely mounted. Mounted behind a
cutout in the customer's panel, the operator interface displays the setup
questions for the machine or process, to which the operator responds by entering
instructions on the keypad. The instructions for a number of different machine
setups can be stored in the computer's memory, then easily retrieved via the
operator interface when a previously used setup is to be repeated.
Up
to 80 inputs and outputs, AC or DC, can be monitored and controlled by the
SBC‑200B, frequently requiring less I/0 than a programmable controller, since
the operator interface can eliminate pushbuttons, lights and selector switches
used with PC's.
The
two built-in serial ports facilitate communications with a host computer,
printer, graphics monitor, or network. Optional A/D converters can monitor up to
8 analog inputs at high speeds, with resolutions up to 1 part in 32,000. A real
time clock is available for use with production reports.
