Hi

as from TIA V15.1 it is possible to segment a program in Units. This make the online team work more easy, once each programmers could work online in a unit without disturb the colleagues work.

This topic has deep details but basically consist in to divide the program into independent units.

The attached casts show how to create this units / locate blocks there and demonstrate, online, that a user change download doesn't avoid that other user download his changes since each change belongs to different units.

(a) the project is at start synchronised as usual, however it works like there are "synchronise domains" (that means "units"). The changes that you make in a Unit, doesn't affect the synchronisation of the other unitis.

(b) actually It is just avaliable to S7-1500. I don't know if when it will be avalible to S7-300/400.

(c) in TIA V15.1 Help system, at Information system - Programming a PLC - Use software Units

#dP

Thank you for sharing. This functionality will be most helpful & powerful.

(a) How is a project synchronised?
  + online -> offline
  + offline -> offline

(b) Is this available only for a Professional license and only for the S7-1500? Or is this available for the S7-300, S7-400 and S7-1200.

(c) Where can we find out more?

Hi,

It is natural that some data exchange between different software units (e.g. by "data transfer" DB's).

In this case these DB's should be declared so:

- Move the object to a unit (e.g. a new unit)

- Object properties, general, publish

- On usage destination units:

- Relation, add new relataion, accessible elements = object unit

- Use the DB data

The attached cast show how to configure it.

Hi,

... same case of commom blocks (blocks that are used in more then one unit):

they should be placed on a unit, publish and on the usage referenced.

Here there is a online cast.

#dP

 Or is this available for the S7-300, S7-400

 I guess never, because Units are not able to be used with absolute addressed blocks (inkl. M Memory, S5 timer, S5 counter). Due to S7-300/400 is based on that, units will not work on this platform.  

Hi,

makes sense to implement the feature on a S7-1500 at the first moment, once in a high performance controller it is more probable to have more than one people working together. In a “smaller” controller, like, S7-1200 it is less probable… but I understand that this feature would be interesting to S7-1200 too.

Anyway, I don’t have access to the product road map to talk about the future innovations.