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Data Sheets

Digital I/O Module
WTDIO-M
14 I/O channels individually configured for input or output. Each channel uses standard TTL level signals, no protection. Automatic decoding of 4x4 matrix keypad.
Digital Input Module
WTDIN-M
8 wide range digital input channels with high voltage transient protection. 2 high current open collector outputs with automatic overload shutdown.
Digital Output Module
WTDOT-M
8 high current open collector outputs with automatic overload shutdown. 2 wide range digital input channels with high voltage transient protection.
Solid State Relay Module
WTSSR-M
5 opto-isolated relays can be wired directly to existing buttons and switches to allow software control of their operation. Or use to switch external solenoids and actuators.
HV Solid State Relay Module
WTSSR-HV
This unit is similar to the WTSSR-M but with an extended power supply input voltage range.
Relay Controller Module
DIO-SSR
Used as the host to the Solid State Relay Module. Switches wired to it's inputs will control the on/off states of the WTSSR relays via a remote data link.
Analog Output Module
WTDAC-M
4 analog output channels which can span from -10.00 to +10.00 VDC using 0.01 volt resolution. Built in S-Curve and Trapezoidal ramp generator with Pause switch input.
Programmable Analog Input
WTAIN-M
4 differential input channels programmable to read voltages and convert them to direct engineering units of choice. 20-bit A/D resolution and input range that spans +10V to -8V with protection to 40 volts.
Analog Input Module
WTADC-M
4 differential input channels or 8 single ended. 12-bit plus sign A/D converter reads voltages from 0 to 4095 mV using 1mV resolution. 2 user programmable alarm trip points for each channel.
Thermocouple Input Module
WTTCP-M
4 differential input channels that accept types J, K, T, E ungrouded thermocouples and read temperature in Fahrenheit or Celsius. Inputs protected to 40 volts.
Thermocouple Input Module
WTTCI-M
4 differential input channels that accept types J, K, T, E ungrouded thermocouples and read temperature in Fahrenheit or Celsius. Inputs protected to 40 volts.
Pulse Counter/Timer Module
WTPCT-M
Read frequency, period, RPM, duty cycle, or pulse length. Track the position of a quadrature encoder. Measure velocity of a projectile using a pair of trip wires.
Unipolar Stepper Motor Driver
WTSMD-M
Drives a unipolar stepper motor which is rated between 8-30 VDC. Up to 1250 pps step rate. Single phase, dual phase, and half step drive modes.
Bipolar Microstep Chopper Driver
WTMCD-M
Drives a bipolar stepper motor using constant current chopper regulation. Up to 10,000 pps step rate and 64 microsteps per step. User programmable drive current and idle reduction current.
Multi-Drop Peripheral Interface
WTMPI-M
Connect a third-party RS-232 peripheral, such as a bar-code scanner, force-gage, multi-meter, etc., onto the multi-drop bus.

Application Notes

Stackable RS232 Communications
AN100
Discussion of the communications format used in the Stackable Data Modules and how it differs from standard RS-232.
Host Programming Guidelines
AN200
Examines standard practises which should be observed when setting up software control routines using a PC, laptop, or single-board computer as a host.

 

 

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