Fluke 125 User Manual page 59

Property
VBias
1 Bias voltage
CAN-Rec. H-L CAN-recessive high to low level voltage
CAN-Rec. H CAN-recessive high level voltage
CAN-Rec. L CAN-recessive low level voltage
V High High level voltage
Vpk-pk Peak to peak voltage
2 V-Level High-Bias
High level to bias level voltage
V-Level Bias-Low
Bias level to low level voltage
CAN-DOM. H-L
CAN-dominant high to low level voltage
CAN-DOM. H
CAN-dominant high level voltage
CAN-DOM. L
CAN-dominant low level voltage
V Low
Low level voltage
V-Level pk-pk Peak to peak voltage
V-level high High level voltage
V-level low Low level voltage
3 Data Bit width
Data Baud Baud rate
Rise
4 Rise time as % of bit width
5 Fall Fall time as % of bit width
6 Distortion Jitter Jitter distortion
Distortion Overshoot Signal distortion, over- and undershoot
Distortion Amplitude Amplitude distortion (AS-i bus)
Table 4-3. Bus Test Screen Indicators
Explanation
Field Bus Measurements
Reading the Screen
: bus activity indicators.
Bus activity indicator 1:
(filled) : voltage measured
(open) : no voltage measured
Bus activity indicators 2 and 3:
(both open) : no activity
(blinking) : activity
Busy, the test tool is measuring/processing
data.
No reading available.
Test OK. Measurement results are within 80%
of allowable range, see figure 4-3.
Warning. Measurement results are between
80% and 100% of allowable range, see figure
4-3.
Test failed. Measurement results are out of
allowable range, see figure 4-3.
4
4-5