Vaisala PTB330 Manuel d'utilisateur Page 74

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USER'S GUIDE____________________________________________________________________
72 __________________________________________________________________ M210855EN-D
Table 13 Symbols Used in FORM Checksum Equations
Symbol Description
cs
2
Value of CS2 checksum in the output message.
cs
4
Value of CS4 checksum in the output message.
cs
x
Value of CSX checksum in the output message.
b
i
Value of the byte at position i (1-based) in the output message.
n Number of bytes in the output message before the CS2, CS4,
or CSX field (including earlier checksum fields, if any).
Bit-wise exclusive-or operator.
36
Byte value of ASCII $ character.
42
Byte value of ASCII * character.
Table 14 Quantity Symbols
Product Quantity symbols
PTB330 with
1×BARO-1
P P3H P1 HCP QFE QNH TP1 A3H
PTB330 with
2×BARO-1
P P3H P1 P2 DP12 HCP QFE QNH TP1 TP2 A3H
PTB330 with
3×BARO-1
P P3H P1 P2 P3 DP12 DP13 DP23 HCP QFE
QNH TP1 TP2 TP3 A3H
Command ‘
FORM /’ returns the default output format. The default
output format depends on the device configuration.
Query syntax and output example:
>FORM ?
Output format : P \RN
>SEND
999.92
>
Prompt syntax and output example:
>FORM
Output format : P \RN
? 4.0 P " " U \T 0.0 P1 \T P2 \T P3 \RN
Output format : 4.0 P " " U \T 0.0 P1 \T P2 \T P3 \RN
>SEND
1000 hPa 999.93 999.81 999.86
>
Command line syntax and output example:
>FORM DATE \T TIME \T P \T ERR \RN
Output format : DATE \T TIME \T P \T ERR \RN
>SEND
2000-01-01 00:01:54 999.88 000
>
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