Pid Technology Controller - Siemens SIMATIC ET 200pro Series Operating Instructions Manual

Advanced commissioning

7.10 PID technology controller

Application example
In the following application example, the higher-level control sets the ramp-up and ramp-
down times of the inverter via PROFIBUS.
Figure 7-21
Preconditions
● You have commissioned the communication between the inverter and the control system.
● Free telegram 999 has been set in the inverter and in your higher-level control system.
● The control sends the scaling value to the inverter in PZD 3.
Procedure
To interconnect the scaling of the ramp-up and ramp-down times with PZD receive word 3
from the fieldbus in the inverter, proceed as follows:
1. Set p1138 = 2050[2].
This means that you have interconnected the scaling factor for the ramp-up time with
PZD receive word 3.
2. Set p1139 = 2050[2].
This means that you have interconnected the scaling factor for the ramp-down time with
PZD receive word 3.
The inverter receives the value for scaling the ramp-up and ramp-down times via PZD
receive word 3.
Further information is provided in the Internet:
FAQ (https://support.industry.siemens.com/cs/ww/en/view/82604741)
7.10 PID technology controller
The technology controller controls process variables, e.g. pressure, temperature, level or
flow.
136
Application example for changing the ramp-function generator times in operation
Drive control via PROFIBUS and PROFINET (Page 94)
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257324B AE
SIMATIC ET 200pro FC-2 converter