Eaton’s Crouse-Hinds Business
Cooper Crouse-Hinds Pte Ltd
No. 2 Serangoon North Ave 5 #06-01
Singapore 554911
tel: + 65 6645 9888
fax: +65 6297 4819
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Total retransmissions on segment
Total retransmissions monitored by diagnostic module of all devices on this segment
since last reset. Resetting this value does not reset the retransmissions of the devices.
A reset of both the segment retransmission counter as well as all device
retransmissions can be performed through the wizard
System Transducer Block (see section 6.4.3).
Retransmission rate on segment
Retransmission rate = Total Re-transmissions / Total pass token requests from LAS of
all devices on this segment over the last calendar month. Note that the rate is always
calculated based on the sum of retransmissions of the devices, and not on the figure
retransmission counter can be reset any time without any impact on the actual
retransmission rate, for example when observing the segment for newly appearing
retransmissions.
section 6.4.2): Click this button to acknowledge all active alarms in this
transducer block.
Average low/in-band/high frequency noise
Average noise in the frequency band. Note that noise levels only have upper limits, as
only high noise represents a problem. The lower the noise, the better.
Frequency band and default limit values are:
Frequency band
Frequency
PreAlert limit
(High limit)
Alert limit
(High-high limit)
Low frequency
25 Hz - 3.8 kHz
150 mV
150 mV
In-band frequency
(=fieldbus frequency)
5 kHz - 55 kHz
75 mV
75 mV
High frequency
90 kHz - 350 kHz
150 mV
150 mV
The difference between average and peak noise is described under Peak noise.
