Table of Contents - TG Drives

12
System architecture
register values and PL2 statements.
SOFTWARE SYSTEM
Compiler PC software tool running on the PC to compile (translate) a PL2
statement text file (.pl2) to a binary format file (.hee) suitable
for transmission to the DMC 2 . Communication between the PC
and the drive is assumed to be in the binary download format.
Terminal
mode
compiler
Line oriented compiler running in the DMC 2 firmware allowing the
user to modify and insert statements in the application program in
the DMC 2 . NOTE that the interpreter performs functions similar to
the compiler but on a line-by-line basis. It is executed in the drive
itself and is accessed online.
Interpreter The interpreter executes as part of the DMC 2 firmware and
interprets PL2 commands. If an application program is running,
statements are sequentially interpreted from the DMC 2 application
program memory. If it is not running the interpreter still reacts to
online statements as described above under terminal mode
compiler.
SYSTEM ARCHITECTURE
DMC 2 SOFTWARE DEVELOPMENT
The DMC 2 software system can be divided into two main parts, firmware (FW) and
PL2 code.
• The FW (firmware) functions as a computer operating system. It manages all
direct interactions with the hardware and provides the application programmer
with uniform, high level programming tools. The FW is stored in part of the
FLASH in the DMC 2 .
• PL2 code is the instructions written by the application programmer to achieve
application specific behavior of the DMC 2 . It is created as a text file in a PC
environment, compiled and downloaded to the DMC and stored in the
FLASHPROM for finalized application programs. While in text format the PL2
file may contain extensive comments and explanations. The downloadable
files, however, are in a pseudo-machine language, stripped of all comments
and labels.
The application programmer uses the following tools to create an application:
• ECT, Edit-Compile-Test, software package for PC-compatible computers.
Allows the user to create application program text files, compile them and
download the binary files to the DMC 2 as illustrated in Figure 1.
• ECT includes facilities for working on-line with the DMC 2 . This combined with
the DMC’s built-in line compiler may sometimes be a useful complement to the
normal development method.
User's Manual 5.1 Inmotion Technologies AB
Doc. No.9032 0027 01 (B), Rev. 11.07.2001