ET/EP/EH Series Intelligent Flexible Driver Manual
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D.3 Protocol Usage
Based on the above description of various communication protocols, we have a general
understanding of the PROFINET communication of STEP inverters. Here are the specific
application examples of PROFINET communication:
Step 1: Prepare a PLC supporting PN communication, such as Siemens S7-1200;
Step 2: Prepare properly the GSD file GSDML-V2.32-STEP-Profinet Adapter-XX.xml
provided by our company;
Step 3: Prepare an inverter with PROFINET functions of our company;
Step 4: Power on the inverter, and set the following parameters in the parameter group of
inverter:
P10.02 = 5 PROFINET command reference
P10.03 = 17 PROFINET reference velocity
P82.02 custom status word 1 the status word to be detected can be selected through the
comments on the operator
P82.03 custom status word 2 the status word to be detected can be selected through the
comments on the operator
P82.04 custom status word 3 the status word to be detected can be selected through the
comments on the operator
P82.05 custom status word 4 the status word to be detected can be selected through the
comments on the operator
Step 5: Connect the PLC and the inverter with standard cables for PROFINET. (Note: Please
perform Step 5 after Step 4)
Step 6: After the GSD file is imported into the PLC, no matter which type of protocol is
selected, the following bits of the control word WORD1 of the inverter protocol must be preset
through PROFINET communication, which is the operating condition of the inverter:
Word1 (operating condition)
Bit0 = 1 running Bit0 = 0 stop
Bit1 = 1 normal running Bit1 = 0 base blocking
Bit2= 1 normal running Bit2=0 quick stop, deceleration and stop according to the deceleration
time of the setting of P40.09
Bit10 = 1 valid PLC command
Bit7 = 1 reset fault Bit7 = 0 normal state
Word2 (velocity reference)
-30000 ~ 30000 velocity reference
Notes:
If AS600 series software and master-slave control are used for the inverter, it is necessary to set the
parameters of the inverter
Host P10.03 =17 PROFINET reference frequency/velocity
Slave P10.04 = 7 PROFINET reference torque
Set in PLC programming communication
Word1
Bit6 = 0 velocity mode in main mode
Bit6 = 1 torque mode in slave mode
In main mode Word2 -30000 ~ 30000 velocity reference Word3 invalid
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