Subsystems
MagnaTran 7.1 User’s Manual
Electrical System
MN-003-1600-00
Brooks Automation
4-12
Revision 2.2
I/O (Interface) Board
The MagnaTran™ 7 I/O board provides optically isolated serial port access, I/O
access, status indicators, and some special function access. The board has a face plate
with the appropriate labeling for user access.
The Interface Board is connected to the Personality Board via a 48 pin DIN connector
which provides address, databus, and control lines.
Three types of Interface boards may be purchased with the MagnaTran 7: high side,
low side and Brooks Automation Marathon Express.
High Side Interface Board
The high side interface provides general purpose digital Input and Output
functions for use when high side sourcing logic is required. The discrete I/O
interface is accessed by a 50 pin D-subminiature connector on the face plate.
This connector provides 22 high side inputs and 20 high side outputs.
See
for a diagram of the high side circuit.
Low Side Interface Board
A low side switching board is available using active low signals instead of the
CE compliant standard active high. See
for the
pin out of the connector and refer to
MISC I/O Communications on page 5-9
and
Discrete I/O Control (DIO) on page 6-45
for references on setup and
descriptions of commands.
Connection of external devices to the MagnaTran 7 Robot for monitoring and
control through discrete I/O lines is done through the 50 pin connector located
on the I/O panel of the robot. The Low Side interface requires the input to be
grounded to the switch state.
See
for a diagram of the low side circuit.
Marathon Express High Side Interface Board
The custom designed Interface for the Marathon Express Cluster Tool provides
access to the serial communication ports through the same connector as the
digital I/O portion. This connection from the robot is taken to an I/O distribu-
tion hub where signals are separated.
The discreet I/O interface is accessed by a 50 pin D-subminiature connector on
