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FB 250 & FB 251 Of S5- S7 Conversion

Created by: Wijekoon at: 10/21/2012 5:11 PM (6 Replies)

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10/21/2012 5:11 PM	Rate (1)
Wijekoon Posts: 59 Rating: (2)	Dear all Please tell me below FB 250 and 251 conversions are correct ? Read Analog //CALL FC 250 // ( BG := 128 // , KNKT := B#(1,5) // , OGR := 420 // , UGR := -420 // , EINZ := M 96.0 // , XA := MW 104 // , _FB := M 96.1 // , BU := M 96.2 // , TBIT := M 96.3 // ); S7 Program CALL "SCALE" (FC 105 ) IN :=PIW128 HI_LIM :=4.200000e+002 LO_LIM :=-4.200000e+002 BIPOLAR:=TRUE RET_VAL:=MW200 OUT :=MD204 L MW 200 L 0 <>I = M 96.1 L MD 204 TRUNC T MD 208 L MW 210 T MW 104 ******************************* Write Analog //CALL FC 251 // ( XE := DBW 298 // , BG := 162 // , KNKT := B#(0,0) // , OGR := 1000 // , UGR := 0 // , FEH := M 252.2 // , BU := M 252.3 // ); S7 Program L MW 298 T MD 262 CALL "UNSCALE" ( FC106) IN :=MD262 HI_LIM :=1.000000e+003 LO_LIM :=0.000000e+000 BIPOLAR:=FALSE RET_VAL:=MW260 OUT :=PQW162 L MW 260 L 0 <>I = M 252.3 Best Regards Wijekoon
Wijekoon Posts: 59 Rating: (2)
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10/21/2012 11:41 PM	Rate (0)
BeVee Platinum Member Joined: 7/18/2011 Last visit: 4/11/2025 Posts: 521 Rating: (91)	Hi Wijekoon, About the analog input conversion: You should use PIW 130. Channel number (KN) in S5 = 1. Channel number 0 is PIW128 and channel number 1 is PIW130. About the anolog output conversion: In S5 there is conversion from DW and you start from MW You forgot the conversionfrom integer to double integer and from DI to real. About the creation of error bits: For AI you create the error bit (FEHL) For AO you create the out of range bit (BU) I think it is better to create the error bit for both cases. Kind regards, BV

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10/23/2012 7:06 AM	Rate (0)
Wijekoon Posts: 59 Rating: (2)	Dear BeVee Highly apriceate you support. Yes you are currect I had some mistack in mw as well as chanel number . So tahnks again your suppot. Best Regards Wijekoon
Wijekoon Posts: 59 Rating: (2)
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11/11/2012 1:55 PM	Rate (0)
padfoot Posts: 33 Rating: (0)	Hello Thank both of you for your useful posts! I've some questions: 1. What is KNKT? (I know this means channel number and channel type, but which channel and what is type exactly?!) 2. I've used FC108 (S5 to S7 Standard library). Is this way correct or I must use your previouse convertion? 3. In my project (convert S5 to S7), I have one AO8x12bit card and I did not see S5 PLC anymore! My AO addresses begin from PQW256 to PQW272 and I must convert the program from S5 to S7. S5 program is like this: ; JU FB 251 NAME: RLG:AA XE : FW 50 BG : KF +2 KNKT: KY 0,1 OGR : KF +10 UGR : KF -10 FEH : F 52.0 BU : F 52.1 *** ; JU FB 251 NAME: RLG:AA XE : FW 60 BG : KF +2 KNKT: KY 1,1 OGR : KF +10 UGR : KF -10 FEH : F 62.0 BU : F 62.1 BE and my conversion is this: CALL "Write Analog Value 1" //FC108 XE :=MW750 BG :=2 KNKT:=W#16#1 OGR :=10 UGR :=-10 FEH :=M752.0 BU :=M752.1 CALL "Write Analog Value 1" //FC108 XE :=MW760 BG :=2 KNKT:=W#16#101 OGR :=10 UGR :=10 FEH :=M762.0 BU :=M762.1 Is this conversion correct? If yes, so where should I use PQW address? and if no, please help me on this! I think if my problem with misunderstanding KNKT will be solved, I can go through this then! So, I need your help. Thank all of you again. Attachment S5-S7-01.JPG (1226 Downloads)
padfoot Posts: 33 Rating: (0)
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11/11/2012 5:42 PM	Rate (1)
Wijekoon Posts: 59 Rating: (2)	Hello Padfood 01. KNKT – Is channel number and channel type . KN- Is channel number KT- is channel Type KT = 0 (unipolar , range between 0 and + values ) KT=1 ( bipolar , range between – and + values ) Ex .01 CALL FC 251 ( XE := DBW 298 BG := 256 KNKT := B#(0,0) OGR := 1000 UGR := 0 FEH := M 252.2 BU := M 252.3 ); BG – Is I/O range and module adders According to above example 01 , BG=162, KN=0 , KT=0 it’s mean out put number will be PQW 256 and this output range is unipolar (value should be only + , It’s mean out put range not goin to below 0) Ex .02 CALL FC 251 ( XE := DBW 298 BG := 256 KNKT := B#(1,0) OGR := 1000 UGR := 0 FEH := M 252.2 BU := M 252.3 ); According to example 02 , BG= 162 , KN =1 , KT =0 It’s mean Output number will be PQW 258 and output range is 0 – 1000 (unipolar) Ex .02 CALL FC 251 ( XE := DBW 298 BG := 256 KNKT := B#(2,1) OGR := 528 UGR := -528 FEH := M 252.2 BU := M 252.3 ); According to example 02 , BG= 162 , KN =2 , KT =0 It’s mean Output number will be PQW 260 and output range is -518 T0 +518 (bipolar) According to your examples If your output starting address is PQW 256 01 . Out put address is PQW 256 02. 02.Output adderss is PQW 258 Best Regards
Wijekoon Posts: 59 Rating: (2)
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11/13/2012 10:09 AM	Rate (0)
padfoot Posts: 33 Rating: (0)	Thank you Wijekoonfor your help. In my S5 program, the programmer did not use FEH and BU outputs. So, I think I can use FC106 (unscale) block for this. I've changed my program to this: L MW 760 ITD T #TEMP11 //DInt L #TEMP11 //DInt DTR T #TEMP12 //Real CALL "UNSCALE" //FC106 IN :=#TEMP12 //Real HI_LIM :=1.000000e+001 LO_LIM :=-1.000000e+001 BIPOLAR:=M0.1 //Always "TRUE" RET_VAL:=#TEMP13 //Word OUT :=PQW258 //KNKT = W#16#101 Is this code correct? Thank you again.
padfoot Posts: 33 Rating: (0)
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11/13/2012 4:38 PM	Rate (0)
Wijekoon Posts: 59 Rating: (2)	Dear Padfoot, If not useFEH and BU yor program codes are correct . Good Luck
Wijekoon Posts: 59 Rating: (2)
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