Advantech PCL-848A/B Manuel d'utilisateur télécharger pdf (Page 24)

18 PCL-848AB User's Manual

3.4.5. ENTERA

Purpose :

This command enters a long string (can be up to 65535 bytes) from a specified

device or from the interface. Reading is terminated upon receiving the terminator, or

when the specified length is reached, or on timeout. The string is put into the

specified segment in the memory. The starting address of the received string has

offset 0 in that segment.

Offset :

ENTERA%=51

Syntax :

CALL ENTER%(ADDR%,DATASEG%,LENGTH%) ----BASIC

CALL ABSOLUTE(ADDR%,DATASEG%,LENGTH%,ENTERA%)

----EASIC Compiler

Parameter :

ADDR% - The address of the device the input string comes from, If 0 <=

ADDR% <= 30, the specified device is the talker, otherwise,

the talker is the previously defined one.

DATASEG% - The memory segment where the string is to be put. The starting

address offset is 0.

LENGTH% - The input string length. The range is from 0 to 65535.

Bus Activity :

- If 0 <= addr <= 30

ATN is set true. UNL is sent. TAD is sent. MLA is set. ATN is set false.

Data string is entered.

- If addr < 0 or addr > 30

ATN is set false. Data string is entered.

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Advantech PCL-848A/B Manuel d'utilisateur Page 24