Rockwell-automation 1747-PBASE BASIC Development Software Programming Manual do Utilizador descarregar pdf (Página 132)

Publication 1746-PM001A-US-P

A-10 BASIC Macro Library

plc_bcd_6_to_db(%1,%2) Converts the number from PLC 6-Digit, Signed, Fixed

Decimal BCD +/- XXXXXX to BASIC Floating-Point

%1=BTW word that holds

value to convert

%2=Converted

value

plc_oct_to_db(%1,%2) Converts the number from PLC 4-Digit, Signed, Octal, +/

-XXXX to BASIC Floating-Point

%1=BTW word that holds

value to be converted

%2=Converted

value

plc5_float_to_db(%1,%2) Converts the number from PLC 5 Floating-Point to BASIC

Floating-Point

%1=BTW word that holds

value to be converted

%2=Converted

value

Table A.11 1771-DB/B Backplane Macros

Number Conversion

CALLs

Macro Inputs Outputs

Table A.12 1771-DB/B Backplane CALLs

Backplane CALLs Macro Inputs Outputs

btr() Performs a block transfer read None None

btw() Performs a block transfer write None None

btr_timed(%1) Performs a block transfer read with a 2 second timeout None Status of block

transfer

btw_timed(%1) Performs a block transfer write with a 2 second timeout None Status of block

transfer

set_btr_length(%1) Sets block transfer read length (1 to 64) %1=length of block transfer

read buffer

None

set_btw_length(%1) Sets block transfer write length (1 to 64) %1=length of block transfer

write buffer

None

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Rockwell-automation 1747-PBASE BASIC Development Software Programming Manual do Utilizador Página 132