Configuring I/O Used By Nc Isochronously - Siemens SINUMERIK 840D sl Configuration Manual

Note
Reusing configured drives or devices in other projects
You can copy preconfigured and configured drives or devices with drag-and-drop into a
global library. In this manner, you can insert them later together with the made settings into
another project and so save configuration effort.
Further information on handling libraries in the TIA Portal can be found in the online help
under "Library > Fundamentals".
Further information
Further information on the configuration of IRT can be found in the TIA Portal online help
under "Configuring IRT communication".
4.5.5

Configuring I/O used by NC isochronously

The procedure for configuring isochronous NC I/O is described below.
If, instead, you want to operate I/O isochronously via the PLC, proceed as for a CPU S7-300.
(Use the OB61 as isochronous alarm OB or the TPA1 as process image, and do not enter
the I/O addresses in the machine data.)
If, rather than non-NC I/O, you want to configure NC drives isochronously, proceed as
described in the associated section (Page 88).
Requirement
● The devices to be configured have been inserted (at least one NCU and one PROFINET
IO IRT-conform device).
● The modules to be configured have been inserted in the PROFINET IO IRT-conform
device.
See also Isochronous-capable modules identification (Page 86)
● The PROFINET IO IRT-conform devices are interconnected to the NCU with X150.
Note
Concurrent operation of devices with and without clock synchronization
When you configure devices that do not participate on the IRT communication, observe the
rules for sync domains for PROFINET IO IRT (Page 97).
SINUMERIK STEP 7 Toolbox V14 SP1
Configuration Manual, 05/2017, A5E41846325
Configuring networks
4.5 Configuring PROFINET IO with IRT
89