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Group3 Control 
 
GMW offers a wide variety of I/O plug-in boards for the Group3 Control system. They include analog & digital I/O, dc & stepper motor controllers, encoder inputs, fiber-optic RS-232, and GPIB interfacing.

Up to three I/O boards may be installed in to a Digital Interface (DI) module.

We do recommend the use of Signal Conditioners (SCs) to protect the boards from transient voltages.

Detailed specifications of each type of I/O board are listed below.
 
 
Specifications - Plug-In I/O Boards for DIs
Type
Channels
Resolution
Notes
A1 -
Multifunction I/O
2 Analog In
16 bit
Differential inputs, 50mV or 5V unipolar or bipolar, user selectable
1 Analog Out
14 bit
5V or 10V, unipolar or bipolar, user selectable
8 Digital In
N/A
TTL switching levels to 40V
8 Digital Out
N/A
open collector, 180mA, 40V
A2 -
Multifunction I/O
2 Analog In
16 bit
Differential inputs, 5V or 10V unipolar or bipolar, user selectable
1 Analog Out
14 bit
5V or 10V, unipolar or bipolar, user selectable
8 Digital In
N/A
TTL switching levels to 40V
8 Digital Out
N/A
open collector, 180mA, 40V
B -
24 Digital I/O
24 Digital In
N/A
TTL switching levels to 40V
24 Digital Out
N/A
open collector, 180mA, 40V
C1 -
8 Analog In
8 Analog In
16 bit
Differential inputs, 50mV or 5V unipolar or bipolar, user selectable
C2 -
8 Analog In
8 Analog In
16 bit
Differential inputs, 5V or 10V unipolar or bipolar, user selectable
D -
8 Analog Out
8 Analog Out
14 bit
5V or 10V unipolar or bipolar, user selectable
E -
DC Motor Controller
4 DC Motors
N/A
Pulse density modulated, with independently programmable speed and acceleration per channel. For motors up to 30V, 1A.
An auxiliary power supply is required
F -
Fiber-optic serial I/O
2 Ports
N/A
Two fully programmable fiber optic RS-232 serial ports
G -
Stepper Motor Controller
4 Motors
N/A
Features automatic positioning, with independently programmable accelerations and speeds
8 Digital In
N/A
Limit switch input
4 Analog In
8 Bit
Position feedback input
H -
Four Encoder Inputs
4 Encoder
N/A
Decodes 4 sets of quadrature pulse trains. Increment and decrement at up to 120 kHz.
J -
16 bit Analog Output
2 Analog Out
16 Bit
5V or 10V, unipolar and bipolar, user selectable per channel
K -
GPIB Controller
1 Port
N/A
Supports controller, talker, and listener functions. A maximum of eight GPIB devices may be connected to the K board
 
 
 

GMW Associates,  955 Industrial Road, San Carlos, CA 94070 
Tel:  (650) 802-8292,  Fax: (650) 802-8298,  e-mail:
  sales@gmw.com