Micromaster 440 - OP07

Hi,

Is there anyone who know how te read/write in a direct access profile, I mean: An OP7 directly connected to a MM440 drive (profibus connection) ?


Reagards,

Gerry

Reply to me with your e-mail and I will send you an app. note

Jay Wilson
Siemens Applications

I wish you would post that app note here, or the link to it.

I work with 18 machines that have OP7's on them and so far have not had any problems. I have Protool software but dont get to do more than reload software from time to time. Its nice to know the quirks or tips associated with devices like this.

OP7-MM440

I received an answer from a siemens employer. I tested what he told me, and it works great. Just connect a profibus cable between the drive and the OP7, set the resistors on both ends on. The I made a project in siemens simatic manager (protool and drive es integrated), u configure in the hardware a PLC with a profibusline, and u connect a micromaster to it with an adress, let's say adress 3. That's all, the communication has to run with an S7 driver, that's why the PLC is needed. Then u insert an OP in your project and u configure an S7 300 driver, in the communication parameters: profibus, and in the screen belox: define peer parameters yourself (don't choose the PLC), give the adress 3 (micromaster adress).
Now, on the CB of the micromaster: set dip 1 and 2 high (adress 3) or do it in parameters 918 (Micrmaster 4 btw).

You can read all parameters and can write parameters with the OP in a direct communication. I've programmed in protool 6, 4 screens, one for the actual output frequentie; one for the current, voltage and torque, one to start and stop the motor and one to read out the inputs (r722).

When u create a screen, u must insert a tag, if it's not a read parameter u can configure Input/Output, else u need to configure output. Then u need to define the datatype

These are the possible datatypes :

U16 -> 16 bit unsigned : WORD
U32 -> 32 bit unsigned : DWORD
I16 -> 16 bit integer : INT
I32 -> 32 bit integer : DINT
Float -> Floating point : REAL


For example: u want to read out r066, it's an output tag, when u look in the Micromaster parameter manual, u see that it's an float datatype, so choose real in the tag configuration, and display decimal. That's how it works.




U can't start and stop a motor just like that, well, yes u do, this is how I realized it:

I made a screen in protool (input/output screen) where I could enter a value for parameter P2889 (fixed connector). Then I setted in the terminals (startersoftware for micromaster drives) the first on BICO (99). Then in the free modules I did a compare between P2889 and 100% and write an output (low or high) to parameter P840 (on/off1). When u type 100% on the OP, the motor will start, set any other value and the motor will stop. If there are better possibillities, please let me know ... don't say: USE A PLC, I KNOW THAT 2

Best regards

102193

You got it. Your almost ready to leave the temple Grasshopper.

Now, on the CB of the micromaster: set dip 1 and 2 high (adress 3) or do it in parameters 918 (Micrmaster 4 btw)

Click to expand...

Set parameter 918 for the profibus address - now that is some info worth storing in the old grey matter.
That will save me trawling through the parameter listing.

Cheers Combo and JRW

Paul

i am trying to do the same for an op7/dp connected via profibus to an simovert inverter with cbp2 board.
can you help me?
thank you

Are you using WinCC Flex or Protool?

i am using protool

Where should I send the example?

to:

[email protected]

Done

Hi, i'm trying to connect directly (without th PLC) a MM440 to my computer and make a SCADA, can it be done? i tryed WinCC Flexible but i can't read the drive from there, any ideas?

Hi and welcome to the forum.


You might find something here:
http://cache.automation.siemens.com...rect_connection_HMI_frequency_converter_e.pdf

PS:
Next time, please don't append to an ancient thread, but rather start a new one.

Kalle

Oh, i'll thanks a lot, i did search in that document earlier but i dont have the resourses to but a S7-200, thats why i'm looking for alternatives, i'll start a new thread later in the day, thanks for the advice and the help.

Best regards

Johlan