
| IWR-PORT SERIES
UTILITY OPERATING MANUAL
C
opyright © 2021 Sensata Technologies, Inc.
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0xFFF7: The input value is not available
0xFFF8:
The output has been written to but has not changed yet.
0xFFFD: Low burnout for an output that is linked to an input with invalid data
0xFFFE: Channel has timed out and data is no longer valid
0xFFFF: Thermocouple or RTD burnout of an input, or High burnout for an output
that is linked to an input with invalid data
The Age value is a value in seconds or minutes (see 6.13) since the reading was taken,
up to a maximum of 255.
The LQI value is the signal strength between 0 and 255. For a wireless device, a value
below 30 is considered marginal. For a local Isoslice unit, 255 indicates the Isoslice is
responding normally, or 0 if the Isoslice is not responding.
If the device type is 0x98, then extra information is available about the IWT transmitter in
the 16-bit registers of parameters 2 to 8:
P1
Scaled data 3869 to 61650
P2
Raw 16-bit data
P3
Span scaling value
P4
Zero scaling value
P5
Serial number most significant 16 bits
P6
Serial number least significant 16 bits
P7
High byte is Update Rate
The low byte is IWT Device Type
P8 Number of transmissions * 1024
For other IWT transmitters, P5 to P8 are available if bit 4 in the device type is set
P7 Update rate Time (sec)
P7 Update rate
Time (sec)
0
10
4
120
1
20
5
600
2
30
6
1
3
60
7
5