ProSoft Technology MVI56-BAS - Manual (Page 228)

Reference MVI56-BAS ♦ ControlLogix Platform
User Manual BASIC Module (DB/BAS Compatible)
Page 228 of 234 ProSoft Technology, Inc.
December 13, 2011
11.4 1746-BAS Comparison
11.4.1 CALLs Not Supported
CALL 26 not supported
CALL 55 not supported
CALL 77 does not return any practical result because MTOP is not used in the
MVI56- BAS
CALL 82 not supported
CALL 103 not supported
CALL 104 not supported
CALL 110 not supported
CALL 111 not supported
CALL 121 not supported
DBY command not supported
LD@ ST@ replaced by LD_AT and ST_AT
11.4.2 New Commands
PGMPRT: Allows the user to select DH-485 or PRT1 as the program port.
EXPORT: Allows an edited program to be saved in the Compact Flash.
LOAD: Allows the user to load a DOS ASCII Basic file into emulated external
RAM memory.
EXIT: Allows the user to exit the BASIC interpreter to the DOS Command
Prompt (DH-485 port). The setup jumper must be installed.
ERRCODE: A regular operator that returns the last error encountered since
the beginning of the program or since the last CLRERR.
ERRLINE: A regular operator that returns the line where the last error was
encountered since the beginning of the program or since the last CLRERR.
PRERR: Prints the description and line number of the last encountered error.
PROG0: Causes the previous PROG2 command to be cancelled. If a bug is
found that needs correcting and the user does not want to power up the
MVI56-BAS (causing the ROM program to start automatically), PROG0
solves this problem.
XBYTE: Functions like the 1746-BAS XBY. However, the argument range is
0000h to 0FFFh (0 to 4095)
11.4.3 Differences
The MVI56-BAS variables are defined by all the characters in the variable
name.
MVI56-BAS uses 64-bit IEE floating point math routines. The difference can
involve numerical round-offs issues.
The MVI56-BAS has no read RAM or ROM memory. Files in the Compact
Flash simulate RAM and ROM storage.