It Communication; Preliminary Remarks - Siemens SIMATIC NET CP 243-1 IT Technical Manual

03/03
2.3

IT Communication

2.3.1

Preliminary Remarks

In addition to S7 communication via Industrial Ethernet, the CP 243-1 IT also sup-
ports the services XPUT/XGET and READ/WRITE parallel to a variety of IT func-
tions. These include data communication via FTP, sending e-mails, and the capa-
bility of permitting up to four Web browsers to access data and status information
on the S7-200 system at the same time. See Fig. 2.
Sending an e-mail or active file access via FTP are initiated by the S7-200 user
program. Only one job at a time can be active for each of these two functions. Not
until the CP 243-1 IT has positively or negatively acknowledged the job can the
user program start another job.
E-Mail-
Server
PC
Handy
Fig. 2 Overview of the IT functions
CP 243-1 IT
J31069-D0429-U001-A0-7618
S7-200
...
SMTP
FTP
FTP-
E-Mail-
Client
Server
PC PC
S7-200
S7-300
S7-400
...
HTTP
FTP
FTP-
Server
PC
S7-200
S7-300
S7-400
Features and Functions
4x
Ethernet
HTTP-
Browser
PC
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