EPEdashboard is a modern user interface with login (username=user, password=root) created using Qt Design Studio. EPE dashboard contains a class definition for control/monitoring of SINAMICS inverters via TCP/IP using application layer S7 protocol. For this, it utilizes the python-snap7 library.

If you follow these steps you will be able to control the speed of the motor using the EPEdashboard GUI and PROFINET.

• Step 1

Inside Starter or TIA portal

Set both signal sources for OFF2 (p0844 and p0845) to 1: p844[0] = 1 p844[1] = 1

p845[0] = 1 p845[1] = 1

Set both signal sources for OFF3 (p0848 and p0849) to 1: p848[0] = 1 p848[1] = 1

p849[0] = 1 p849[1] = 1

Set the enable for the ramp-up function generator p1140[0] = 1 p1140[1] = 1

p1141[0] = 1 p1141[1] = 1

Set the setpoint value enable p1142[0] = 1 p1142[1] = 1

Set the parameters for the ON/OFF command p0840[0] = 2094.0 CO/BO p0840[1] = 2094.0 CO/BO

p2099[0] = p2900[0] p2099[1] = 0

• Step 2

Copy folder "EPEdashboard\pySinamics\Snap7 instructions\Snap7" to C drive and the copied folder ("C:\Snap7") to the PATH

• Step 3

Run python (Python 3) script "DCterecenje.py" to test the Snap7 library