I have a plc 1215dc/dc/dc, HMI  and g120 drive.

I want to give control command to drive from hmi

I just want to know the analog value send and receive by drive from free telegram is in which format : real or integer.

Plz confirm this

Hello,

for control G120 drive from HMI you can use HMI direct access, application examples are here or here.

Speed setpoint in telegram is specialy coded as integer. It is 16-bit (NSOLL_A, f.e. in telegram 1) or  32-bit PZD (NSOLL_B, f.e. in telegram 2).

Principe of 16-bit coding is following: 4000h (16384) corresponding to 100% of reference speed in p2000 in drive. Range for positive speed is from 0 to 7FFFh (0..200% of ref.speed), for negative is from 8000h to FFFFh (-200..-1% of ref.speed).

With regards
Martin

Here's something you might want to use and learn. There is an application example how to control the speed.

SINAMICS G: Controlling a speed axis with the “SINA_SPEED” block