Measurement-computing Digital232 Uživatelský manuál stáhnout pdf (Strana 30)

Section 3 Command Descriptions

3.8

Data received for output to the digital ports must be contained within a

prefix (

) and a suffix (

). If the amount of data sent is less than the number of

bits programmed as outputs, the least-significant bits will contain the data sent

and the most-significant bits will be cleared to logic zero. If the data sent is

greater than the number of bits programmed for output or selected by the

command, the

Digital232

will generate a conflict error and ignore the entire

command string. The

Data Strobe

output is pulse for approximately 50

microseconds after new data is output on the selected port(s).

Example:

reset the

Digital232

C2G2

configure ports 1 & 2 as output

D4E6BZ

output hexadecimal '4E6B' to ports 1 & 2

read data from the

Digital232

display shows 4E6B

F1 Format - ASCII Character

In the

format, the data is coded and transmitted in ASCII Characters

with the four least significant bits of each ASCII character representing four

bits of data.

F1 Character Decimal

Equiv F1 Character Decimal Equiv

00 8 8

11 9 9

22 : 10

33 ; 11

44 < 12

55 = 13

66 > 14

77 ? 15

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 58 59

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Measurement-computing Digital232 Uživatelský manuál Strana 30