Rockwell Automation 1771-DB BASIC MODULE - Manual (Page 8)

Preface A
Summary of Changes
SOC-6
The definitions of these calls have changed:
Important: The Series A definitions are not supported in the Series B.
CALL Series A definition Series B definition Page
30 peripheral port support
parameter set:
enables pins 6 and 8
pins 4 and 5 are always enabled
PRT2 port support parameter set:
enables pins 4, 5, 6 and 8
12 -20
32 save program to data recorder
①
enable/disable processor interrupt 12 -22
33 verify program with data recorder
①
transfer data from PRT1 or PRT2
to CPU files 12 -23
34 load program from data recorder
①
transfer data from CPU files to
PRT1 or PRT2 12 -29
38 save labeled program to data
recorder (1770-SB only)
①
expanded ONERR 12 -36
39 load labeled program from data
recorder (1770-SB only)
①
3.3-Digit Signed, BCD to BASIC
Floating Point 12 -38
①
The Series B module does not support the 1770-SA/SB data recorder (cassette recorder).
Important: Because these calls are no longer needed to program PROMs,
the Series B does not support these Series A calls. Note that if you call
one of these calls you do not receive an error message, but return to the
main program without performing a task.
CALL Series A definition
8 disable interrupts
9 enable interrupts
79 blink the active LED by default
See Chapters 12 and 13 for more information on call routines.
The 1771-DB Series B, BASIC module provides 1771 backplane support
instead of SLC

backplane support. The data types, commands,
statements and call routines are similar between the two modules.
These calls are different:
This 1771-DB call: Is equivalent to this 1746-BAS call:
32 (enable/disable processor interrupt) 20 and 21
33 (transfer data from PRT1 or PRT2 to CPU files) 22
34 (transfer data from BTW buffer to PRT1 or PRT2) 23
49 (read remote DH-485 SLC data file) 27
50 (write to remote DH-485 SLC data file) 28
Chapter
1771-DB Series B and
1746-BAS Compatibility