Installation manual

Publication 1747-RM001G-EN-P - November 2008
A-12 SLC 5/03 (OS30x), SLC 5/04 (OS40x) and SLC 5/05 (OS50x) Firmware History
OS302, Series C, FRN 5
OS401, Series C, FRN 5
OS501, Series C, FRN 5
released: October 2001
Enhancements
• Additional Ethernet connections for 32k and 64k processors (OS501
only)
The total number of available Ethernet connections has increased by
eight from 16 to 24 in the 32k (L552) and 64k (L553) SLC 5/05
processors. Four connections are reserved for incoming (client)
messages, four connections are reserved for outgoing (peer) messages
and 16 connections can be used for either incoming or outgoing
messages. Therefore, the maximum number of connections in either
direction is 20.
For the 16k (L551) SLC 5/05 processor, the total number of available
Ethernet connections remains at 16, and the maximum number of
connections in either direction remains at 12.
• Embedded web server capability for module information, TCP/IP
configuration and diagnostic information (OS501 only)
The SLC 5/05 processor now includes an embedded web server which
allows viewing of module information, TCP/IP configuration and
diagnostic information via Ethernet using a standard web browser. In
order to view the web server main menu, type in
“http://www.xxx.yyy.zzz” for the web address in the web browser,
where www.xxx.yyy.zzz is the IP address of the SLC 5/05 processor.
• Domain Name System (DNS) support in the Ethernet message
instruction (OS501 only)
The SLC 5/05 Ethernet MSG instruction now includes DNS support,
which allows entering in a device name of up to 41 characters in place of
an IP addresses. Before making a connection to that device, the SLC
5/05 will query a Domain Name Server on the Ethernet network for the
IP address of the device with that name. In order to successfully use the
DNS capability, a “Primary Name Server” must be defined in the
Channel 1 Ethernet Configuration. A “Secondary Name Server” and
“Default Domain Name” may also be configured. If a “Default Domain
Name” is configured, then it gets appended to every device name that is
entered into an Ethernet MSG instruction.
TIP
RSLogix 500 version 5.20 or higher must be used to take
advantage of this DNS capability.