Can 21 G120 controled by SINA_SPEED with a 1515 CPU?

I have a 1515 CPU 6ES7515-2AM01-0AB0 and I need to control 21 G120, I'm going to .control the speed of the axes, I would like to control by SINA_SPEED library but I want to be sure,

Can I control 21 G120 by SINA_SPEED with a 1515 CPU?,

Thanks in advanced,

Kindly,

Andrés Felipe Ariza

------------------------------------------------------------------------------------------
Split from S7-1200 connection with G120 CU240E-2 PN.

Quick answer:

Open portal, create new project, drop in 1515 with the same part # as below.

Drag in 21 G120 control units.

Try to have all 21 point to the PLC as their master

If you can do that, add 21 telegrams.

FYI, with telegrams, you do not need SINA_SPEED.  The telegram makes it all happen for you automatically with setting the control word, and speed setpoint (scaled from 0..16384 or -16384..16384 -- for bidirectional motors).

I avoid SINA_SPEED where I can.

Andrés_Ariza

Dear ChristophD

I have a 1515 CPU 6ES7515-2AM01-0AB0 and I need to control 21 G120, I'm going to .control the speed of the axes, I would like to control by SINA_SPEED library but I want to be sure,

Can I control 21 G120 by SINA_SPEED with a 1515 CPU?,

Thanks in advanced,

Kindly,

Andrés Felipe Ariza

I did this on my portal install and it allowed 21 profinet drives controlled by a single 1515 and compiled the hardware without error.

I hope Siemens would log a fault if this were not truly allowed.  Or, I could spend the time reading in the system manual for the 1500's, and see how many profinet connections are allowed for the s7-1515. 

huggy_d1

Quick answer:

Open portal, create new project, drop in 1515 with the same part # as below.

Drag in 21 G120 control units.

Try to have all 21 point to the PLC as their master

If you can do that, add 21 telegrams.

FYI, with telegrams, you do not need SINA_SPEED.  The telegram makes it all happen for you automatically with setting the control word, and speed setpoint (scaled from 0..16384 or -16384..16384 -- for bidirectional motors).

I avoid SINA_SPEED where I can.

Andrés_Ariza

Dear ChristophD

I have a 1515 CPU 6ES7515-2AM01-0AB0 and I need to control 21 G120, I'm going to .control the speed of the axes, I would like to control by SINA_SPEED library but I want to be sure,

Can I control 21 G120 by SINA_SPEED with a 1515 CPU?,

Thanks in advanced,

Kindly,

Andrés Felipe Ariza

 

Dear Huggy_D1,

Thanks a lot for your help, I have done the connection by SinaSpeed and everything is ok, in the first time I had done this connection by technological object, but  I had to increase the watchdog value up to 6000ms because the CPU was going to Stop frecuently, so I thought that the control by Sina_Speed would be more fast

Regards,

Andrés Felipe Ariza

Hello Andrés ,

I want to do the same thing but only for 6 drives . So I want to check with you if you faced any problems with SINA_SPEED ? Is it reliable ?

Thanks.

Housem.

Hi,

it is reliable. What it does is very simple:

-Reading the actual data from the drive via DPRD_DAT command (system function) and put the status to the outputs of the FB

-Read in the input commands and send the control word and speed via telegram 1 to the drive via DPWR_DAT command (system function) - that's all.

So there is no sophisticated program inside SINA_SPEED. That's also the reason why it needs less performance (utilization and memory) on the PLC compared to Technology Object Speed axis.