Siemens SIMATIC PROFINET Function Manual page 119

Requirements
● STEP 7 as of V13 service pack 1
● CPU supports PROFIenergy with I-devices, for example CPU 1215C DC/DC/DC as of
firmware version 4.2
● You use the PROFINET IO interface as an I-device and have created transfer areas.
● The user program in the I-device handles PROFIenergy commands
Background: You need to program PROFIenergy functions with I-devices in the user
program using the "PE_I_DEV" instruction and corresponding auxiliary blocks; this is
different compared with IO devices for which this functionality is made available by the
firmware. You may therefore only activate the PROFIenergy support for transfer areas if
the user program in the I-device is configured correspondingly as well.
Enabling PROFIenergy for transfer areas of I-devices
Proceed as follows to assign parameters for the support of PROFIenergy:
1. Select the PROFINET interface (X1) of the CPU.
2. Select the required transfer area in the area navigation, for example:
Operating mode > I-device communication > Transfer_area_1.
3. Select the check box "Enable PROFIenergy communication".
Figure 5-20 Configuring PROFIenergy with I-devices
PROFINET with STEP 7 V14
Function Manual, 09/2016, A5E03444486-AG
5.2 Intelligent IO devices (I-devices)
Functions
119