Share a Data Block

randy

Supporting Member

R

Join Date

Apr 2002

Posts

158

• May 6, 2011

• #1

How do you setup two processor (S7) to share the same Data Block?


Thanks

rmonroe

 

Michael Hunt

Member

M

Join Date

Nov 2008

Location

Leeds

Posts

75

• May 6, 2011

• #2

randy said:

How do you setup two processor (S7) to share the same Data Block?


Thanks

rmonroe

Click to expand...

Why would you want to share the same data block?

 

randy

Supporting Member

OP

R

Join Date

Apr 2002

Posts

158

• May 6, 2011

• #3

To share the same HIM...

 

L D[AR2P#0.0]

Lifetime Supporting Member

L

Join Date

Nov 2006

Location

UK

Posts

6,694

• May 6, 2011

• #4

How are the two CPU's connected, MPI/DP/Profinet ?

 

TurpoUrpo

Lifetime Supporting Member

T

Join Date

May 2008

Location

Switzerland

Posts

1,571

• May 6, 2011

• #5

randy said:

How do you setup two processor (S7) to share the same Data Block?


Thanks

rmonroe

Click to expand...

You cant share it, but you can copy it (or part) from other to another. But access frome boths cpu's by just

Code:

L "DB_Share".Member1

Is not possible.

 

randy

Supporting Member

OP

R

Join Date

Apr 2002

Posts

158

• May 7, 2011

• #6

Were using MPI for communication.

 

L D[AR2P#0.0]

Lifetime Supporting Member

L

Join Date

Nov 2006

Location

UK

Posts

6,694

• May 7, 2011

• #7

Use SFC67 to copy db data from another CPU

 

randy

Supporting Member

OP

R

Join Date

Apr 2002

Posts

158

• May 14, 2011

• #8

I just found where you setup Global Data Block. MPI>Option>Define Global Data.

Now I can share one HMI with two CPU's


rmonroe