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Can't read or write values in a S7-200 from a OP73 micro

12/11/2006 10:18 PM	Rate (0)
AleksF Posts: 27 Rating: (0)	Hi everybody, i'm actually working with a S7-200 (CPU222) and a OP73micro. My problem is that I can't modify or read the values of my variables and marks in the PLC from the OP73, the adresses of every variable and mark are the same in both programs but after I download the programs and connect the MPI cable, the HMI only shows ##### in the numeric displays and when i try to modify a mark sends a message than say that is impossible to apply values on the controller (or something like that,i'm translating the message from a panel in spanish). The parameters that i'm using in the communication tab in S7-MicroWin are: Interface: PC/PPI Protocol:PPI Mode: 11 bits HSA: 31 The adress of the PLC is 2. The configuration parameters of theconnections tabin WinCC Flexible 2005 SP1 are: Interface: IF1B Type: Simatic Transfer speed: 187500 Adress: 1 Unique master in the bus: Yes Profile: MPI HSA: 31 Number of masters: 1 Adress of the PLC: 2 Cyclic process: Yes I hope that you can help me as soon as possible, i really need to finish this work this day, i'll apreciate so much... Thanks to all and have an excellent day... If some of the parameters doesn't have the correct translation or my english isn't good enough, i apologize for that...thanks again....
AleksF Posts: 27 Rating: (0)
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12/12/2006 8:51 AM	Rate (0)
Wizard Diamond Expert Joined: 4/24/2006 Last visit: 12/24/2025 Posts: 9097 Rating: (1202)	Hello AleksF, You mentioned that in Panel you have selected baudrate 187,5. What's the baudrate in CPU of used port. (systemblock) Please adapt baudrate of panel to baudrate in CPU! Best regards, Wizard

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12/12/2006 8:55 AM	Rate (0)
ZAK Gold Member Joined: 5/8/2006 Last visit: 10/23/2025 Posts: 1085 Rating: (78)	Hi, you should use the same protocol PPI or MPI (HMI and S7-200). Bye

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12/14/2006 8:13 AM	Rate (0)
Aret Posts: 2348 Rating: (265)	Also try to activate/deactivate "only master on bus checkbox".
Aret Posts: 2348 Rating: (265)
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12/14/2006 9:20 AM	Rate (0)
ZAK Gold Member Joined: 5/8/2006 Last visit: 10/23/2025 Posts: 1085 Rating: (78)	Hi, do you read ourinformations or do youwant towrite a lot of messages for fun - without sence?

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12/14/2006 5:27 PM	Rate (0)
AleksF Posts: 27 Rating: (0)	Thanks Wizard, Aret and Zak, sorry for not answer immediately, I´m actually have a little amount of time to check te computer, but yes, my problem was that the baud rate in the HMI was different of the baud rate of the S7-200, I adjust the baud rate in the HMI at 9600 and the problem dissapear...!!! Thanks again for your help, and sorry to not answeryour replies at the apropiate moment...
AleksF Posts: 27 Rating: (0)	Last edited by: AleksF at: 12/14/2006 5:28 PM
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12/15/2006 9:32 AM	Rate (0)
Wizard Diamond Expert Joined: 4/24/2006 Last visit: 12/24/2025 Posts: 9097 Rating: (1202)	Hello AleksF, Thanks for feedback Best regards, Wizard

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