SFC52 Any Data Type Pointer

[CliveBaker]

HI All,

I am trying to set up a FB to pass details to to get Simocode data records 92, 94 amd 95. I have 30 motors to read.

I can get it to work ok it it is hard coded but I want to pass variables to the FB.
This is what I have in the FB

CALL "RDREC" , DB10
REQ :=#RD_REC
ID :=#RD_Addr
INDEX :=#RD_Indx
MLEN :=#RD_MLen
VALID :=#RD_Valid
BUSY :=#RD_Busy
ERROR :=#RD_Error
STATUS:=#RD_Status
LEN :=#RD_Len
RECORD:=P#M 20.0 BYTE 32

My Question Is how do I pass the RECORD:

 

[L D[AR2P#0.0]]

Here's an example where the record is created at run time - you have to provide the processing to set up the record to point to different areas according to the motor etc. I'd suggest using a global DB

 

[CliveBaker]

Thanks for that but CAn you please explain the Load and Transfer sections, I am new to this.

I think understand but need some confermation.

Cheers
Clive

 

[L D[AR2P#0.0]]

If you use Help from Simatic manager (not the editor) and search for "any pointer" you can read about the format. The load/transfers are setting up the any pointer according to this format.

 

[PeterW]

Thanks for that but CAn you please explain the Load and Transfer sections, I am new to this.

I think understand but need some confermation.

Cheers
Clive

L #Data = Load Data into accumulator area
T #Data = Transfer value held in accumulator into the variable Data.

 

[CliveBaker]

May be I am not explaining myself very well.

What I am trying to do is retrieve data records from the simocode.
I have several drives that i need to do this for so I thought I would write a FB to do it.
I can get it to work using OB1

A "True"
= L 22.0
BLD 103
CALL "RDREC" , DB10
REQ :=L22.0
ID :=DW#16#7FE
INDEX :=92
MLEN :=32
VALID :=M0.2
BUSY :=M0.3
ERROR :=M0.4
STATUS:=MD2
LEN :=MW10
RECORD:=P#M 20.0 BYTE 32
NOP 0
(This is the STL version of the Ladder)
The records I need to retrieve have different lenghts, 32, 61 and 69 bytes.

My FB contains

LAR1 P##MyRecord
L W#16#1002
T W [AR1,P#0.0]
L #iNumberOfBytes
T W [AR1,P#2.0]
L #dbNumber
T W [AR1,P#4.0]
L #dwAreaPtr
T D [AR1,P#6.0]
as per above however
I get this with thw call

A #bReadEnable
= L 2.0
BLD 103
CALL "RDREC" , DB10
REQ :=L2.0
ID :=#dwID
INDEX :=#iIndex
MLEN :=
VALID :=
BUSY :=
ERROR :=
STATUS:=
LEN :=
RECORD:= #MyRecord - this is in red
NOP 0
The ID and Index variables are the passsed data.

Am i correct in thinking that the record in DB10 holds the any pointer info for the area for the read data to go.


I think I am trying to hard and may end up hard coding all 24 drives as I am running out of time.

So any help would be good.

 

[L D[AR2P#0.0]]

MyRecord must be of type Any in the temp area - sorry this is not clear in my first post.

 

[CliveBaker]

Thanks now that bit is fixed, just trying to get my head around the rest.


We will no doubt speek again

 

[CliveBaker]

Got it all working now on port 2 (DP1) however I need to getit to work on a 342-5 so my question is how do I address the individual simocode, dp-read will read the network and populate the db for the cyclic data, but I need to read acyclic via sfb 52 so I need the ID.