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3-24
3.16.3
2251A Status Byte
The 2251A status byte is obtained in response to the *STA? command. The byte is
eight bits wide, and the individual bits are interpreted as shown in Table 3.18.
Table 3.18 - 2251A STA Response Description
BIT
EXPLANATION
1 (lsb), 2 and 3
Error number (1 to 5) in binary
2
3
4
1 = External frequency standard
5
1 = Reading ready
6
1 = Error condition
7
1 = Service requested (SRQ)
8 (msb)
1 = Gate open
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Содержание 2251A
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