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SFC 51 "RDSYSST" for Rack/station status information SZLID 292

Created by: Prayag at: 3/13/2015 9:26 AM (4 Replies)

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3/13/2015 9:26 AM	Rate (0)
Prayag Experienced Member Joined: 4/19/2013 Last visit: 5/26/2023 Posts: 61 Rating: (0)	Hello All, I have previously used SFC 51 in a FC with shared DB in STL. But i trying to code in SCL source . in FB. For it I have written code as : VAR_TEMP SSL_Header : STRUCT //P_Bus_Slaves LENTHDR: WORD ; N_DR: WORD ; END_STRUCT ; Ret_Value : INT ; END_VAR BEGIN RDSYSST(REQ := True// IN: BOOL ,SZL_ID := W#16#292// IN: WORD ,INDEX := W#16#1// IN: WORD ,BUSY := BusyDP1// OUT: BOOL ,SZL_HEADER := SSL_Header // OUT: STRUCT ,DR := // OUT: ANY ); // INT Here I want to have "DR := as P#DB198.DBX0.0 BYTE 16 "Similar to as i had done in FC-STL. But it gives error. Please can you tell me if the thing i am trying to do is possible , N how i could get around it. Thanks All.

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3/13/2015 10:49 AM	Rate (1)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 6/2/2023 Posts: 6803 Rating: (1345)	For Hello, For SZL_Header and DR you need struct variable.Simply define one in a DB and assign it.I don't think SFC51 can accept ANY pointer as input when it requires a structure DATA_BLOCK DB1 // // Block Comment ... // STRUCT SZL_HEADER:STRUCT LENTHDR:WORD; N_DR:WORD; END_STRUCT; DR:STRUCT STATUS:ARRAY[0..7] OF BOOL; DATA:ARRAY[0..31] OF BYTE; END_STRUCT; END_STRUCT BEGIN END_DATA_BLOCK ORGANIZATION_BLOCK OB86 VAR_TEMP // Reserved info : ARRAY[0..19] OF BYTE; // Temporary Variables RET:INT; END_VAR // Statement RET:=SFC51 (REQ:=TRUE,SZL_ID:=292,INDEX:=1,BUSY:=M10.0,SZL_HEADER:=DB1.SZL_HEADER , DR:=DB1.DR); ; END_ORGANIZATION_BLOCK I hope this help, Hamid Hosseini
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This contribution was helpful to 2 thankful Users Prayag MicroMan

3/13/2015 12:51 PM	Rate (0)
Saravana kumar Gold Member Joined: 2/6/2009 Last visit: 4/19/2023 Posts: 932 Rating: (117)	Hi, In addition with the answer Given by Mr.Hamid, here is the link for the description about Construct ANY Pointer in S7 SCL.
	_______________________________________________________________ Best Regards T.Saravana Kumar "All for the Best"
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This contribution was helpful to 2 thankful Users hdhosseini MicroMan

6/25/2015 9:41 AM	Rate (0)
Min_Moderator Platinum Member Joined: 9/3/2014 Last visit: 3/13/2019 Posts: 4812 Rating: (123)	New question published by Dongerpure is split to a separate thread with the subject SFC51, Error. Best regards Min_Moderator

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12/8/2016 2:17 PM	Rate (0)
Min_Moderator Platinum Member Joined: 9/3/2014 Last visit: 3/13/2019 Posts: 4812 Rating: (123)	New question published by massini is split to a separate thread with the subject RDSYSST, ret_val error 7001. Best regards Min_Moderator

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