3-5
Communications Processor CP 541
EWA 4NEB 812 6188-02
3.3
Starting up the CP 541
Proceed in the following order for the first startup.
Step
Action
Meaning
1
Mount the CP 541 on the rail.
See Section 3.1.
2
Make connections for a programmer, the
SINEC L2 and the power supply.
See Section 3.2
If you are restarting the CP 541 after an interval, connect the
PLC via the connecting cable instead of the programmer.
Skip Steps 4 to 7.
3
Switch the CP 541 to the STOP state.
The CP 541 will be initialized (See Section 3.4.1).
Programmer operation is only possible in the STOP state.
4
Read DB1 into the programmer.
DB1 is always present in the CP 541. After a reset, there is a
default DB1 in the CP 541.
5
Make the necessary changes to DB1.
You have defined the parameters to be changed in Chapter 4.
6
Transfer the modified DB1 to the CP 541.
7
Remove the programmer from the CP
541.
8
Assign parameters to the connected PLC.
9
Connect the CP 541 to the PLC with the
connecting cable.
For normal operation, you must provide the connection to the
PLC.
10
Set the mode switch of the CP 541 to
RUN.
Switch the connected PLC to RUN.
DB1 will be stored after a STOP-RUN transition.
The exchange of data between the connected PLC and SI-
NEC L2 will begin.
After a successful start and initialization of the interfaces, the
green RUN LED lights up. The CP 541 is in the RUN state.
After startup, the CP 541 executes the exchanging of data.
Detailed information on the operating states of the CP 541 can be found in
Section 3.4.
Startup
Operation
Installing and Connecting the CP 541