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(µMOTOR) Technical Manual - PBSI Group Ltd

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mMOTOR TECHNICAL MANUAL<br />

When using the Microvision Plus with the dedicated PROFIBUS option, the following<br />

protocols can be used, P&B Std., MODBUS RTU, P&B Inv. and P&B DP.<br />

When using all but the P&B DP option, the protocol should be implemented in<br />

accordance with the protocol specifications.<br />

However, if the P&B DP option is chosen then the communication is handled in the<br />

following way.<br />

Data is automatically configured and transmitted by the Microvision Plus to the<br />

PROFIBUS master without the need for the PROFIBUS master to send requests to the<br />

Microvision Plus, as is the case when using any of the other protocol options. The<br />

amount of data returned by the Microvision Plus is determined by the number of<br />

fastscan words chosen. Only one byte is used for the command outputs to the<br />

Microvision Plus.<br />

When using the P&B DP protocol option then one of the following should be chosen<br />

from the GSD file module list: -<br />

8 Bytes In + 1 Byte Out (choose this option if fastscan words is set to 4)<br />

12 Bytes In + 1 Byte Out (choose this option if fastscan words is set to 6)<br />

16 Bytes In + 1 Byte Out (choose this option if fastscan words is set to 8)<br />

P&B DP Input Structure<br />

First Byte<br />

Second Byte<br />

Third & Fourth Bytes<br />

Fifth & Sixth Bytes<br />

Seventh & Eighth Bytes<br />

= MVP Logic Status<br />

= MVP Thermal Capacity<br />

= MVP FS1<br />

= MVP FS2<br />

= MVP FS3<br />

If 6 fast scan words chosen then the additional bytes are included.<br />

Ninth & Tenth Bytes<br />

Eleventh & Twelfth Bytes<br />

= MVP FS4<br />

= MVP FS5<br />

If 8 fast scan words chosen then the additional bytes are included.<br />

Thirteenth & Fourteenth Bytes<br />

Fifteenth & Sixteenth Bytes<br />

= MVP FS6<br />

= MVP FS7<br />

P&B DP Output Command Structure<br />

START A = 80 Hex<br />

STARTB = 81 Hex<br />

STOP = 82 Hex<br />

RESET = 84 Hex<br />

SERIAL INHIBIT = C0 Hex<br />

CLEAR INHIBIT = 80 Hex + any of the other command options START B, STOP or RESET<br />

Care should be taken when using the CLEAR INHIBIT command as it is possible to both<br />

clear the inhibit and either START, STOP, or RESET the drive at the same time.<br />

P&B Engineering Issue 6 25/04/2005 Page 31

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