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Doubt in siwarex M integration

Created by: Maraitorzzzzzzzzz at: 8/9/2010 3:35 PM (11 Replies)

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8/9/2010 3:35 PM	Rate (0)
Maraitorzzzzzzzzz Posts: 16 Rating: (0)	Hello, We are integrating the Siwarex M with s7300. I am using the S7 configuration package. where we need to load the weight set point value? In the DB10.194 "comment is dr22:Set point" here or any where else. directely if we load the value in DB it's enough or i need to call any functions. if need to use the inbuilt AO signal to give to an positioner. Any settings i have to do or not?
Maraitorzzzzzzzzz Posts: 16 Rating: (0)
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8/9/2010 5:24 PM	Rate (0)
ABenno Posts: 206 Rating: (22)	Hi Maraitorzzzzzzzzz, if you want to send the set point to the Siwarex M you have to do 2 things: 1. As you said, load the new set point into DBW194 (DR22). 2. Send the DR22 to the Siwarex M, this you do as follow: a. Load the DR no. (here 22) to the DBB21 (Application WRITE_DATA_1) b. Load "1" to the "Bitfield" DBW22, to start the transfer. c. If the tranfer is finished the "Bitfield" will be reset and in bit DBX24.1 indicates that the transfer was successful, if there was an error in the transfer the bit DBX24.4 will indicate this. See also the Manual chapter 5.5.6ff. The inbuild analog output is primerial forsee for the output of the weight, if you want to use it to control the speed of a motor or similar, you have to set the DR9 (analog output settings) to "External output", see manual chapter 8. Then you have to send the control value with DR24 to the Siwarex M, see above. This has to be done cyclical. !!Be aware!! that the behaviour of the analog output of the Siwarex M is not like a "standard" AO. By the way, why do you use the "old" Siwarex M and not the modern Siwarex FTA?? Regards ABenno
ABenno Posts: 206 Rating: (22)
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8/10/2010 12:27 PM	Rate (0)
Maraitorzzzzzzzzz Posts: 16 Rating: (0)	Dear ABenno, Thank tou for your information given. I have some more doubts. 1. For example assigning the digital output or analog output of the perticular parameters has to be called for every startup of the programe. 2. To read the status of gross weight every time we need to use the Read_Data command and had to call the "FC_SIWA_M". 3. I have to perform some of the sequences before siwarex starts the operation, to give the start operation "WRITE_CMD" by writing the "10 to DR2" and to stop the cycle "11 to DR2". we need to enter the DR2 value in "DBW.88" Thanks in advance. Maraitorzzzzzzzz
Maraitorzzzzzzzzz Posts: 16 Rating: (0)
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8/10/2010 1:20 PM	Rate (0)
ABenno Posts: 206 Rating: (22)	Hello Maraitorzzzzzzzzz, 1. It is not neccesaryto dosettings for the digital and analog outputs at every startup of the Siwarex M. These parameters are permanent the will not be cleared with power off. 2. The "FC_SIWA_M" should be called every cycle. To read the actual values you have to use the READ_DATA application. You can use the procedure like it is in the example program. L 30 T "DB_SCALE".DBB 53 L 3 T "DB_SCALE".DBW 54 If you excecute this every cycle the actual data (weight and status) will be updated as fast as possible. Info: You can use all applications at the same time, the "FC_SIWA_M" will organize them so that nothing gets lost. 3.To perform a command (start/stop dosing, zeroing ...) you have to load the command codeto DR2 (DBW88) and set the trigger bit in the bit field of the WR_CMD application (DBX47.0). For commands (DR2) you can´t use the application WR_DATA. Regards ABenno
ABenno Posts: 206 Rating: (22)
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8/10/2010 2:42 PM	Rate (0)
Maraitorzzzzzzzzz Posts: 16 Rating: (0)	Dear Abenno, Can we calibrate the load cells by using the siwarex module. Thanking you, maraitorz
Maraitorzzzzzzzzz Posts: 16 Rating: (0)	Last edited by: Maraitorzzzzzzzzz at: 8/10/2010 2:47 PM
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8/10/2010 4:28 PM	Rate (2)
ABenno Posts: 206 Rating: (22)	Hello Maraitorzzzzzzzzz, it is possible to calibrate the scale with the Siwarex M. You can do this with Siwatool or with the PLC program. Chapter 3.3 of the manual is explaining the calibration. 1. You have to set the parmeter in DR3, see chapter 9.3.2 in the manual. 2. The you have to the calibration procedure, see chapter 3.3 in the manual. Regards ABenno
ABenno Posts: 206 Rating: (22)
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8/12/2010 10:07 AM	Rate (0)
Maraitorzzzzzzzzz Posts: 16 Rating: (0)	Hello Abenno, I have communication problem with the Siwarex-M. i am using Siemens PG, i want to communicate with the siwarex M for configuring and minitoring by using SIWATOOL V 5.52. I have connected the RS232 cable (Connections made as in the manual shown) from Siwarex and to PG. And then i went to communication and pressed active communications, "Only attempts are made".As per the manual after 8 atemps it will be connection. In the PG i am having 25 pin connector. i am using serial prot adaptor D9/D25 converter, in the section 2.2.6 they have shown the pin assignment in which fro 25 pin we have to Connect the GND to 7 pin or not, at present i have connectd to 5th pin only. More than this any settings i have to do? Thank's in advance.
Maraitorzzzzzzzzz Posts: 16 Rating: (0)
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8/12/2010 10:43 AM	Rate (0)
ABenno Posts: 206 Rating: (22)	Hello Maraitorzzzzzzzzzzz, if you use a 25 to 9 adaptor you have to use the pin 5 for ground (GND). Sometimes these adaptors change Pin 2 and 3, so it would be good to try the two versions, 2 and 3 changed and not. regards ABenno
ABenno Posts: 206 Rating: (22)
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8/12/2010 12:13 PM	Rate (0)
Maraitorzzzzzzzzz Posts: 16 Rating: (0)	Hello ABenno, Any other settings i have to do. How the SIWATOOL will be knowing which port we are using. Any driver i ahve to use. for Ex: in S7 we will use SetPG/PC interface. thanks in Advance.
Maraitorzzzzzzzzz Posts: 16 Rating: (0)
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8/12/2010 1:31 PM	Rate (0)
ABenno Posts: 206 Rating: (22)	Hi Maraitorzzzzzzzzzz, have a look in chapter 10 of the manual, there the Siwatool and the setup is described. Veriy important is the scale numberit has to be 0. The best is that you create a new file and set the no. immediately to 0. Regards ABenno
ABenno Posts: 206 Rating: (22)
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