Weidmuller WI-I/O 9-L: Wireless I/O Transmitter / Receiver v1.3 - Manual (Page 66)

WI-I/O 9-L Configuration Manual
WI-I/O 9-L Wireless I/O page 66 of 108
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Mappings configure when to send specific information to another module and how the data is
sent. You can send input data:
When the input values change (also called “Event reporting”); or
Event reporting and on a timed basis (also called “Timed Update”).
Mappings cause the WI-I/O 9-L-T to transmit messages when any of the inputs used by the
mapping change state. You can also configure your unit to send messages if there are no
state changes for a while.
Feature Description
Mapping
name
Optional user-defined name for the mapping.
NOTE : WI Series only stores the mapping name in the configuration file; the mapping name is not
transferred to the module during configuration. This means that loading a module will not reproduce
any user-defined names assigned to the mappings.
Transmit
count
Number of times to transmit the same message. For example, if you set Transmit count to 1, the WI-
I/O 9-L-T transmits the message once, if you set the value to 2, the WI-I/O 9-L-T transmits the
message twice, etc.
Setting the transmit count to a higher number (up to 8) helps the message arrive at its intended
destination if the radio path is “marginal”. For large systems, excessive transmissions may cause
slow response. Weidmuller, Inc. recommends setting a transmit count of 2 or 3 for good radio paths,
and 4 or 5 for poor radio paths.
Delay
Before Tx
Number of seconds to wait after the mapping is triggered before transmitting the message. For
example, if you set Delay Before Tx to 5.0, the WI-I/O 9-L-T waits 5 seconds before transmitting the
message.
Setting a longer
Delay Before Tx (up to 127 seconds) helps synchronise closely spaced changes to
different inputs sent in a single message. Once the mapping is triggered, the WI-I/O 9-L-T
incorporates any changes to the state of inputs during the Delay Before Tx period in the message
that is sent.
Update
Time
If a “change” trigger does occur not in the Update Time, the WI-I/O 9-L-T triggers the mapping and
transmits the message. This is known as an “Update message”.
Whenever the mapping is triggered (by either a change or an update), the WI-I/O 9-L-T restarts the
timer.
For example, if you set
Update Time to 0:2:30:00, the WI-I/O 9-L-T sends the message 2.5 hours
after the last time it was sent unless a change of state causes the mapping to be triggered before this
time elapses.
Paralysis
Time
Minimum number of seconds to delay after sending a message before the mapping is re-sent. For
example, if you set Paralysis Time to 300 seconds, the WI-I/O 9-L-T will not transmit a message for
300 seconds after sending the last message sent. If the mapping is triggered during this time, the WI-
I/O 9-L-T delays transmitting the message until the Paralysis Time has passed. This forces a limit on
the number of transmissions that can occur.
Disable Lets you enable/disable the Update Timer and the Paralysis Timer .