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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token, nor immediately return it to the LAS after three
2
successive tries. These re-tries of
PT messages are called retransmissions.
Retransmission rate
Retransmission rate = Re-transmissions/Total pass token requests from LAS over the last
month.
8.3.
The Navigation area will indicate the status condition with the NAMUR symbols explained in
section 5.1.4.
If devices are not visible, search and click on the white arrow ( ) to open lower hierarchy
layers. Field devices are in the lowest layer.
No Pre-alert or alert:
Pre-alert condition:
Alert condition:
Example of a Pre-alert condition:
2
Three is a default for most control systems. The value is user-adjustable.
