Replacement Of A Module With Another Of The Same Type; Notes And Restrictions - Siemens CP 1626 Operating Instructions Manual

Settings of the Ethernet ports with prioritized startup
The default setting of the Ethernet ports of the communications processor is the "Automatic
setting" unless you use the option Prioritized startup" for the connected IO devices. Then you
need to select the value "TP 100 Mbps full duplex" in the "Transmission medium duplex"
drop-down list with the program "STEP 7 Professional (TIA Portal)" on the tab "General" >
"PROFINET interface [X1]" > "Advanced options" > "Port (X1 P1 R)". The communications
partner also needs to be configured with fixed settings. The option "Prioritized startup" is
particularly useful when IO devices need to be connected and disconnected during operation
(tool change).
4.7

Replacement of a module with another of the same type.

Follow the steps below to replace a defective communications processor with another brand
new communications processor:
1. Call up the function "SERV_CP_backup()" in your user program after you have installed
and configured the communications processor. This saves the configuration of the
communications processor in the folder "<public
documents>\Siemens\SIMATIC.NET\CP1626" in Windows and in the folder
"/etc/cp1626_config" in Linux.
2. Call up the function "SERV_CP_restore()" in your user program. This loads the
configuration of the defective communications processor on the new replacement
communications processor.
4.8

Notes and restrictions

Operation of the CP 1626 with IRT communication
To obtain the IRT StartApp callbacks in the real-time extension RTAI of the Linux operating
system, the IRT user program must be started under "root" and "su" rights.
If the parameter "Intel® SpeedStep™tech" is located in the BIOS, it must be set to "disabled"
in IRT operation. It can be found, for example, in the Phoenix BIOS in "Advanced BIOS
Features"
Restrictions
IRT operation is not possible with Windows operating systems.
Access to cyclic IRT data outside the callback event "PNIO_CP_CBE_STARTOP_IND" are
not clock synchronized. This type of access has not been released.
Simultaneous operation of IO controller and IO device both with IRT communication on the
same communications processor is not possible.
If an IO controller was configured for IRT communication, on the same CP 1626 only 1 IO
device may be configured for IRT communication and operated at the same time.
CP 1626
Operating Instructions, 11/2018, C79000-G8976-C434-03
4.7 Replacement of a module with another of the same type.
Operating hardware
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