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S7300 with Op177B

Created by: MJRVSV at: 10/28/2013 5:38 AM (11 Replies)

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10/28/2013 5:38 AM	Rate (0)
MJRVSV Posts: 166 Rating: (1)	Dear Sir We have got Testing set up On the OP, v get Press Control On then with a push button, control actually gets ON but message "Press Control ON" does not vanish from OP, due to this we dont get any other messages etc on OP On the OP, there is a profibus connector with single cable, switch on the connector is in ON position Pl let us know y OP is not communicating with PLC Pl let us have check points Regards, M. Rishikesh
MJRVSV Posts: 166 Rating: (1)
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10/28/2013 6:15 AM	Rate (0)
Ste39 Platinum Member Joined: 1/21/2013 Last visit: 11/20/2024 Posts: 4620 Rating: (710)	Hi Rishi, To see if the HMI communicates with the PLC can use the life bit. In the HMI go to Connection then Coordination, there is another line which is called Coordination.Program one WORD free for example MW26, recall in the PLC memory bit M27.2, that's the life bit. If the life bit does not change within the max. tolerable lapse of interruption (5s), a "1" is written into the memory word MW26. Take a look: Monitoring the connection between a panel and the control

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10/28/2013 6:41 AM	Rate (0)
Ste39 Platinum Member Joined: 1/21/2013 Last visit: 11/20/2024 Posts: 4620 Rating: (710)	Hi Rishi., Maybe you've already looked at this, but if you only have the CPU and this HMIboth connectors that of HMI and also that of the CPU must be in the ON position.

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10/28/2013 7:01 AM	Rate (0)
MJRVSV Posts: 166 Rating: (1)	Hi Thanks Yes switch of Profibus connectors on CPU and HMI is ON as only one cable is present at both CPU and OP As per ur previous instructions we would call FC1 in OB1 of exisiting program and check Regards, Rishi
MJRVSV Posts: 166 Rating: (1)
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10/28/2013 1:02 PM	Rate (0)
MJRVSV Posts: 166 Rating: (1)	Dear Sir Pl refer to attached Step 7 program of the machine a) Can i just add Call FC19 in OB1? (As FC19 not in use in the program uploaded to PG) b) I will copy contents of block FC1 of Lifebit.exe and paste in FC19 , change DB1 to DB19 (as DB1 was already in use and DB19 not in use) If above 2 steps are ok then please advice about DB19 as I am not able to generate DB19 exactly as per DB1 of lifebit.exe Regards M. Rishikesh in another machine where BFfault is blinking, v r unable to Upload to PG, please advice Attachment Ravi.zip (190 Downloads)
MJRVSV Posts: 166 Rating: (1)
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10/29/2013 9:44 AM	Rate (0)
Ste39 Platinum Member Joined: 1/21/2013 Last visit: 11/20/2024 Posts: 4620 Rating: (710)	Hi Rishi. the FC19 you can retrieve it in OB1, pay attention that in segment 1 of OB1 there is already a call of FC19. DB 19 is structured as follows: STRUCT AreaPointer ARRAY[0..1] WORD END STRUCT in the other PLC if you have BF fault, have you tried to read the diagnostic buffer?

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10/30/2013 9:48 AM	Rate (0)
MJRVSV Posts: 166 Rating: (1)	Good Morning Sir We have got two numbers of Sealed Quench Furnaces with S7400 PLC and CPU 313C-2DP where SCADA PC is connected with SubPanels for both Furnaces, Loader etc etc, all are connected through CP Modules On the SCADA PC, we are able to open bloks for all the connected PLCs but neither we are able to Upload to PG nor we are able to EDIT due to a meeage like Password Protected or Password Required etc We have seen under Protection TAB but did not find any password Kindly advice Best Regards, M. Rishikesh
MJRVSV Posts: 166 Rating: (1)
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10/30/2013 10:35 AM	Rate (0)
@shish Bronze Member Joined: 9/16/2011 Last visit: 6/20/2024 Posts: 291 Rating: (6)	MJRVSV Good Morning Sir We have got two numbers of Sealed Quench Furnaces with S7400 PLC and CPU 313C-2DP where SCADA PC is connected with SubPanels for both Furnaces, Loader etc etc, all are connected through CP Modules On the SCADA PC, we are able to open bloks for all the connected PLCs but neither we are able to Upload to PG nor we are able to EDIT due to a meeage like Password Protected or Password Required etc We have seen under Protection TAB but did not find any password Kindly advice Best Regards, M. Rishikesh There must be a password due to which you are not able to upload the programm to PG. This may be set by a commissioning engineer. The only way to upload is to ask for password or clear the PLC and write the codes again. Reg, @shish
	Reg, @shish --- If satisfied with reply, Rate it ! If problem solved, hit THANK !
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10/30/2013 2:21 PM	Rate (0)
Ste39 Platinum Member Joined: 1/21/2013 Last visit: 11/20/2024 Posts: 4620 Rating: (710)	Hi Rishi, if it is not too difficult, if you download programs directly from the CPU, are password protected or not?

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10/31/2013 4:43 AM	Rate (0)
MJRVSV Posts: 166 Rating: (1)	Good Morning Whenever we try to edit or upload to PG, we are asked to enter Password so neither v r able to edit nor upload kindly let us know if there is any way to access password in the program and delete it? Regards,
MJRVSV Posts: 166 Rating: (1)
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