Weidmuller WI-I/O 9-L: Wireless I/O Transmitter / Receiver v1.3 - Manual (Page 106)

WI-I/O 9-L Configuration Manual
WI-I/O 9-L Wireless I/O page 106 of 108
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This document uses the following terms:
Term Meaning
Analog signal Analog signals are continuously variable signals. The WI-I/O 9-L supports
analog signals in the range 0-20 milli-amps
Cold junction temperature
compensation
When using thermocouples, the module compensates for the reading errors
caused by the temperature of the connection between the thermocouple wires
and the module terminal strip.
Debounce Delay Number of seconds that a signal must be changed to be recognised as
changed.
Discrete signal Discrete signals are either active (on) or inactive (off).
Mapping Configuration item that lets you link inputs at one module to outputs at another
module. Mappings are triggered either by a change in some of the input data
that they send, or by a timer to send an update if the data hasn’t changed.
Module The actual remote device hardware being configured.
Output reset time If an output doesn’t have any data sent to it, it can be configured to turn off
(reset). Output reset time is the time to wait after receiving data before
resetting the output to a safe state (0mA for analog, off for digital).
Paralysis Minimum number of seconds after a mapping is transmitted that it can be
transmitted as a second event if triggered.
Post linearization scaling Lets you to change the range of temperature reported by the thermocouple
system. This is a scale factor applied after linearizing the thermocouple
voltage to a temperature range.
Pulsed input Used to count the number of times an event has occurred. Pulsed inputs are
attached to a discrete input, and count the number of times the input has
switched from off to on.
Repeater A module that receives a message and passes the message to another
module.
Sample time Determines how often the module checks an analog signal.
Sensitivities Unit sensitivities indicate the change required in an input for WI Series to
detect a state change and transmit a new value.
Setpoint Setpoints let you generate a discrete signal based on the value of an analog
input.
Each setpoint is associated with two different values - a high threshold value
and a low threshold value. When the analog input moves below the low
threshold value the set point turns off. When the analog input moves above the
high threshold value the setpoint turns on. When the analog level is between
the high and low threshold values, it does not change.
Thermocouple Thermocouples measure temperature by using the seebeck effect that occurs
at the junction of dissimilar metals.
Thermocouple linearzation
table
Thermocouple tables translate the millivolt signal from a thermocouple to an
actual temperature measurement. The WI-I/O 9-L provides built-in support for
E, J, K and T type thermocouples, and support for other thermocouple types
through user compensation tables.
Unit Configuration of a particular device (module) stored inside the configuration
software
Warm up time Determines how long the analog circuits are powered up before performing the
sample.