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Literature

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Data Sheets

WTX4 Isolated DAQ Module: Can be a mix of up to 32 digital input/outputs, 16 analog input/outputs, or 16 thermocouple inputs. Full electrical isolation from power supply and communications bus.
WTDIO-M Digital I/O Module: 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.
WTDIN-M Digital Input Module: 8 wide range digital input channels with high voltage transient protection. 2 high current open collector outputs with automatic overload shutdown.
WTDOT-M Digital Output Module: 8 high current open collector outputs with automatic overload shutdown. 2 wide range digital input channels with high voltage transient protection.
WTSSR-M Solid State Relay Module: 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.
WTSSR-HV HV Solid State Relay Module: This unit is similar to the WTSSR-M but with an extended power supply input voltage range.
DIO-SSR Relay Controller Module: 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.
WTDAC-M Analog Output Module: 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.
WTAIN-M Programmable Analog Input: 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.
WTADC-M Analog Input Module: 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. OBSOLETE
WTTCP-M Thermocouple Input Module: 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.
WTTCI-M Thermocouple Input Module: 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. OBSOLETE
WTPCT-M Pulse Counter/Timer Module: 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.
WTSMD-M Unipolar Stepper Motor Driver: 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.
WTMCD-M Bipolar Microstep Chopper Driver: 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.
WTMPI-M Multi-Drop Peripheral Interface: Connect a third-party RS-232 peripheral, such as a bar-code scanner, force-gage, multi-meter, etc., onto the multi-drop bus.

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Application Notes

AN100 Stackable RS232 Communications: Discussion of the communications format used in the Stackable Data Modules and how it differs from standard RS-232.
AN200 Host Programming Guidelines: 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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