BIRD THRULINE 4020 series, Инструкция

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RS-232 Interface
37
Prefixes (Px)
Function
Turns the prefix mode on or off. Set x to:
Remarks
Prefixes are sent over the bus with the measurement, and indicate the status
of t h e cu r r en t m ea su r em en t (see F igu r e 30 for exa m ples):
type.
e value sent is a normal on-scale reading.
Bird model number.
Triggers (Tx)
Function
Select s t h e con dit ion wh ich will t r igger a r ea din g (see F igu r e 31).
Remarks
Failure to trigger device before requesting a reading will lock the bus.
Fastest reading rate is 2.4 readings/second; slowest is 1 reading/sec.
Figure 30
Prefix Examples
Data String Description
N or m a l (N ) for wa r d ca r r ier wa ve (F C),
pr efixes on
Over flowed (O) for wa r d ca r r ier wa ve
(F C), pr efixes on
Over flowed for wa r d ca r r ier wa ve,
pr efixes off
U n der flowed (U ) r eflect ed dBm (RD),
pr efixes on
Figure 31
Trigger Conditions
Command Trigger Condition
T0
Con t in u ou s on E N T
T1
On e sh ot on E N T
T3 On e sh ot on TRG
T5
On e sh ot on m ea su r em en t com m a n d
(F C, F D, RC, RD, SW, RL, MN , MX)