Bus Power - NetAlert NetMeter User Manual

Bus Power

NetMeter continuously monitors the DeviceNet bus
power quality.
Display
MIN
MAX
P-P
P-P
MAX
What's a transient?
A transient is a short, temporary deviation of the bus
voltage level.
Every DeviceNet network has some level of bus power
transients, which is perfectly acceptable. Transients in
excess of 2V P-P can contribute to node failures and
communication errors in some cases and should be
investigated. Transients in excess of 10V P-P are an
indication of serious network problems..
What it means
250
Current network bus
voltage is 17.2V.
V
Minimum bus
250
voltage recorded
since NetMeter was
x 1
plugged in or reset is
V
17.1V.
Maximum bus
250
voltage recorded
since NetMeter was
x 2
plugged in or reset is
V
17.4V.
Current peak-to-
250
peak (P-P) voltage
x 3
(transient or ripple)
is 0.1Vp-p.
V
Maximum peak-to-
peak (P-P) voltage
250
recorded since
x 4
NetMeter was
V
plugged in or reset is
0.6V.
4
10