Just to clarify, in case you are not so sure...
5550 is a family catalog number of which there is only one member, the ControlLogix 5550 1756-L1 controller.
The
Software Version of RSLogix 5000 required is dependent on the
Firmware Revision that the controller's processor is currently flashed to. This dependency is known as
Lock Stepping. The
Major revision number of the firmware (r
X.x) that the processor is currently flashed to, and the
Major version number of RSLogix 5000 software (v
X.x) must match i.e. be
Lock Stepped.
Example:
1756-L1 processor flashed to Firmware Revision r
13.40
Requires RSLogix 5000 v
13.04
Although, in this example, the two numbers in their entirety may look quite similar, they are not to be confused as being the same. Firmware revisions and software versions are only released to match at the
Major number. The
Minor number of firmware (rx.
X) and software (vx.
X) released can be anything, either the same or entirely different.
Also, the firmware available for a processor may be released at various Minor revisions under the same Major revision number. So you could have say, firmware r
13.20 and r
13.40 available for the same processor. Both of which would be supported using RSLogix 5000 v
13.04.
Although in RSLogix 5000, or indeed in RSLinx Classic, a processor's firmware may be displayed as a
Major.Minor number (example:
13.40), firmware revisions are actually released to a third level - the
Sub Minor level. This is represented by a second delimiter followed by the Sub Minor number (example: 13.40.
00). The Sub Minor number, also known as the
Build number, is not always displayed or referenced in text and software. But when it is, it may be confusing to decipher, depending on the format chosen...
Example:
Firmware Revision
7.10.01 may be referenced as
7.10,
7.10.1,
7.010.001, depending on where a user is looking.
Technically, RSLogix 5000/Logix Designer software versions are also released including a Sub Minor number, but this number is next to never incremented above .
00, so it is not as important and seldom referenced. You will, however, notice that the .
00 Sub Minor number is displayed when you view the
Version history under
Help>About RSLogix 5000.
I am only making these points as users often have to reference these numbers from different sources and it can become very confusing, very quickly.
But, for the purposes of this thread, we need only concern ourselves with the Major number of the firmware revision and software version...
The 1756-L1 is the oldest and first ControlLogix processor. It supports firmware revisions from r1.81 up to r13.40. So, in theory, the software version of RSLogix 5000 you may require here could be any version between
v1.x up to
v13.x.
So, if we now go back to the original question of which firmware revision the 1756-L1 processor is currently at, so as to figure out which version of RSLogix 5000 software is required...
Besides "
knowing" all of the above, which you may or may not find important, there is a "
built-in" feature of the RSLogix 5000 software for identifying the firmware revision within a project that a user is attempting to open on a workstation that does not have supported software installed.
As you may or may not be aware, which ever version of RSLogix 5000 software was last used on a workstation is the same version that will open the next time you attempt to open the software. With that in mind...
If you have RSLogix 5000 v20.01 installed, and let's say no other versions installed, and you are attempting to open a 1756-L1 controller project, which we know can only be opened with v13.04 at the latest, then the software will begin to open v20.01 and then read the project ACD file automatically so as to access the same information that Ron has outlined. Once the software has read in the project file's firmware revision, it should then prompt the user, stating the revision the project is configured for, and that support for this revision is currently not installed...
This prompt should display whether you attempt to open the project file itself, or you attempt to open the project file from within already opened software.
So, when you say...
Engrtalha said:
...i m unable to open program on RS logix 5000 v20.0...
...what exactly do you mean by "
unable"? Do you get the above prompt, or any prompt?
What I'm not 100% sure of is if much older versions of the software saved the project ACD file in a manner that permits this auto revision check when being opened in newer versions? It is possible that a very old version (pre v10) is required here and does not facilitate this? I just cannot remember back that far?
Do let us know, either way.
Regards,
George