CV500ETN01 Omron, CV500ETN01 Datasheet - Page 137
CV500ETN01
Manufacturer Part Number
CV500ETN01
Description
Programmable Logic Controller
Manufacturer
Omron
Datasheet
1.CV500ETN01.pdf
(285 pages)
Specifications of CV500ETN01
Peak Reflow Compatible (260 C)
No
Leaded Process Compatible
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Private and Global Addresses
112
Note
3. Sending Mail
4. Receiving Mail
5. Automatic Clock Adjustment
6. Host Name Designation
Network Security and Firewalls
Setting a global IP address for an Ethernet Unit involves network security con-
siderations. It is recommended that the user contract with a communications
company for a dedicated line, rather than using a general line such as a blue
band. Also, be sure to consult with a network specialist and consider security
measures such as a firewall.
Once a firewall has been set up by a communications company, on the other
hand, there may be some applications that cannot be used. Be sure to check
first with the communications company.
• The PLC can send the Ethernet Unit's IP address to the SMTP server by
• The TCP port number (default: 25) to be used for SMTP cannot be used if
• The PLC can receive the Ethernet Unit's IP address from the POP3
• The TCP port number (default: 110) to be used for POP3 cannot be used
• The PLC can acquire clock data through the Ethernet Unit's IP address
• The TCP port number (default: 123) to be used for SNTP cannot be used
• The PLC can acquire the server IP address for the Ethernet Unit's IP
• The UDP/TCP port number (default: 53) to be used for DNS cannot be
mail via the intranet, even if it as a private address.
prohibited by a firewall in the communications path. Also, with some com-
munications companies, there may be restrictions, based on mail security
considerations, on using POP before SMTP.
server by mail via the intranet, even if it as a private address.
if prohibited by a firewall in the communications path.
from the SNTP server via the intranet, even if it is a private address.
if prohibited by a firewall in the communications path.
address from the DNS server via the intranet, even if Ethernet Unit's IP
address is a private address.
used if prohibited by a firewall in the communications path.
Section 5-3
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