User's Manual

FEATURES AND OPERATION
2-10
Part No. 001-4090-101/102
within itself is a constant length, but the fields are not all uniform in length. Field definitions
are shown in Table 2-4.
Table 2-4 Online Window Field Definition
A typical diagnostic string (0003,+28,13.1,-093,-088,.9,1,015,015) would be interpreted as:
lRemote station # 3 reports that:
l Its internal case temperature is +28°C
l Supply voltage is 13.1 VDC
l It is receiving a signal of -93 dBm from the master
l The master is receiving a signal of -88 dBm from station 003
l The forward power is .9 watt
l The reflected power is OK
l 15 of the last 15 data blocks were received correctly
2.5.2 INTERPRETING DIAGNOSTIC RESULTS
Interpretation of the diagnostic results is similar for both online and offline diagnostics.
Differences will be noted where they exist in the text. For simplicity, we continue to assume that
diagnostics are being collected at the master station.
2.5.2.1 Short ID
Online diagnostic data is identified by the Short ID of the unit. Users should make sure that
all units in a communicating group have unique Short IDs.
2.5.2.2 Temperature
Internal case temperature of sending unit. This is a 3-digit signed value in degrees C. This
value should remain within the limits of -30ºC to +60ºC ±2°C.
Name
Length
(in bytes)
Description
Short ID 4 1 - 254
Temperature 3 Signed value
B+ 4 From 6.0 to 18.8 V
Remote RSSI 4 Signal strength received by remote station in dBm
Local RSSI 4 Signal strength for this remote as received by local station in dBm
FWD Power 4 From 0.1 to 1 watt
Rev Power 1 0 = good
1 = poor
Rx Quality 3 Number of good data blocks received in the last 15
3 Number of total data blocks detected, maximum 15