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Split from USS Protocol to Control MM440.

 Hi venky_7

did you solve this problem ? if yes tell me how ?
thanks

Venky_7

Hi, We are converting a Micromaster vector drive into micromaster 440 which is controlled via USS communication.
After changing to micromaster 440,we have found that the drive isn't receiving main setpoint via USS. I have checked that the parameter P2018 receive word 1 is always 0.
I am using following communication settings.
PZD to 2 and PKW to 3 words.
When I tried to change the PKW length to 4 or 127, communication fails. it only works at PKW 3words. Does PKW word length have any influence on the PZD communication in USS?
I can receive the control word1 and send 2 words (status word 1 & Actual frequency), but I can't receive the man setpoint via USS.
Please help.

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Split from USS Protocol to Control MM440.