|
Pyramid Integrator (PLC 5/250) to ControlLogix Upgrade
We
can convert your 5/250 (Pyramid Integrator) code to ControlLogix.
Utilizing
our translation tool we can accurately convert any existing 5/250
programs to run in ControlLogix. The program uses listing files
created by 6200 (5/250) (.LIS, .TXT, and .DTR).
The
Method.
This
conversion process enables the user to load a program into ControlLogix,
and connect their Remote I/O chain, and in minimal time, begin to
fine-tune the ControlLogix program. Where possible, all sensible
assumptions are made by the program.
Using
3 listing files created by the 6200 program – Our analyzer will
create an importable .L5K file for ControlLogix. That file will
be essentially complete, following these guidelines.
-
Symbols, Address Comments and Rung Comments are translated accurately,
to the extent that the same Format in the 5/250 Program is retained
in ControlLogix.
-
Logic (Ladder Logic) is translated exactly.
-
Data is initialized, any and all tables or values that exist in
the 5/250 program will be migrated to ControlLogix.
-
Variables and Registers are conveniently named to facilitate the
transition for the programmer. For example, 1N200:53 will become
_1N200[53] in the ControlLogix version (An Array is created).
Where required, Symbols are created for indexed variables. Symbols
are always created for Control Register .POS values as these are
used for index’s in the File instructions.
-
Existing Interfaces using PLC-5 type Reads or Writes (Level II
etc) will still work after the newly created array is mapped using
the “Logic/Map PLC5/SLC” Option in the program. Integer arrays
are created as 16 Bit and ready for this mapping.
-
BTW/BTR instructions are translated correctly. The data remains
in newly created BTD Data arrays. Few (if any) program changes
are required.
-
I/O Configuration is generated, if the existing 1771 I/O racks
and ASB’s are retained. The logic is analyzed, all Digital I/O
is converted. Racks are named appropriately with similar addresses.
This program will create only 1 DHRIO configuration (from where
all Remote I/O Racks are automatically configured) – This can
easily be manually split into 2 or more DHRIO’s before startup.
The
Rack numbers – although addressed as decimal, will retain their
Octal magnitude. That is, Rack 17 (Octal) in the 5/250, will become
Rack 17 (Decimal) in the ControlLogix version. This translation
is carried through any partial rack configuration.
I:017/14
(Rack 1 (Full Rack), Slot 7, Bit 4) = Rack_01a:I.Data[7].12
I:017/14
(Rack 1 (Half Rack), Slot 7, Bit 4) = Rack_01b:I.Data[3].12
The
I/O Symbols and Descriptions are carried accordingly.
The
Caveats
The
following items are either not translated completely or are flagged
for further work.
- ASCII
port programming will have to be re-coded in ControlLogix, this
is due to the changes in handling Serial port commands in ControlLogix.
ACS will be happy to assist you in completing this task.
- Code
using GSB, FOR, WIL statements etc will require manual work following
translation, this is due to programming philosophy changes.
- MOV
instructions using 5/250 Bit Indexed commands (1N5:200{1..5})
are translated to BTD instructions automatically – any other usage,
such as CMP, FAL etc will have to be manually translated.
- CMP
instructions using complex expressions bound by “LAND” and “LOR”
statements (containing AND/OR operations). ControlLogix will treat
the “AND” and the “OR” as undefined symbols. These statements
will require manual translation.
Test
Results
In
our most resent test application – 2 LP’s incorporating 3,277 Rungs
of Ladder Logic and 13 (1771) Racks of I/O, translated in 43 Seconds
with only 180 errors on Import – Most of these errors were due to
GSB and ASCII I/O statements. This is for an entire Continuous Caster
(Steel Industry) Program.
This
page is being updated to include other examples. Keep checking back
for more information.
Still
Need Convinced?
If
you would like to see a section of your program converted,
-
Call to set up a time.
- E-Mail
your program files - They will be treated in the strictest confidence
- We
will Fax you back any section you like within ½ hour.
Contact
Us
ACS
will be happy to quote our services for either logic conversion
support, or total turnkey system replacement including commissioning
support.
Please
review our Web pages which include our Project experience.
For
proposal information and answers to any questions – please call
us at (412)-921-3226, and speak to Chris
Powell or Dave
Anselm, or use our Technical Support
Form. |
