Moeller EC4-200 - Communication Parameters of the PC; Communication Parameters (Baud Rate) of the CPU

05/06 AWB2724-1584GB
55
11 PC n EC4-200 connection setup
The communication parameters of both the PC and the PLC must
match in order to establish a connection between them. An The
default parameters are set as shown in on devices that are used
for the figure 66first time. You only have to select the COM…
interface for the PC. No other settings are required.
The CPU parameters can then be defined again (a figure 67).
These parameter changes then have to be changed for the PC once
more.
Communication parameters of the PC
You can use the COM1 to COMx interfaces of the PC. In the
programming software define the communication parameters of
the interface.
X Choose ‹Online l Communication Parameters›.
X Define the port (COM1 or COM2 interface) a section
“Changing parameters”
X Accept the other parameters shown in figure 66.
X Confirm the settings with OK.
X Log on to the PLC.
Changing parameters
Proceed as follows in order to change parameters such as baud
rate or port:
X Double-click the value, such as 38400. The field is highlighted
in grey.
X Enter the desired value.
Double-click this field once more to choose the Baud rate, e.g.
57600 Bit/s.
Communication parameters (baud rate) of the CPU
X Open the PLC configuration.
X Click the “Communication tab”.
X In the Baud rate list box select the “baud rate” (e.g. 57,600 Bit/
s as shown in figure 67).
X Log on to the PLC.
The following prompt appears:
X Click “Yes”.
The program is loaded. After a delay of approx. 2 minutes a
communication fault message will be output since the baud rate
of the CPU and the PC no longer match:
X Acknowledge the message with OK.
In order to reconnect to the PC you must adjust the baud rate of
the PC again to that of the project.
h
An error message means that the default CPU settings
have been changed beforehand. In this case, try all other
baud rates or set the factory settings.
Figure 66: Defining communication parameters of the PC
Figure 67: Defining communication parameters of the CPU
Figure 68: Confirmation request after program change
Figure 69: Communication fault