Emerson Rosemount 2460 Reference Manual page 69

Reference Manual
00809-0100-2460, Rev DB
2. (Optional). Communication parameters for Host and Field ports can be configured in the Advanced
Port Configuration window (click the Advanced button):
a. The Advanced Port Configuration
b. Click the Apply button to save the current configuration.
c. Click the OK button to return to the Rosemount 2460 System Hub Configuration window.
3. In the Rosemount 2460 System Hub Configuration window click the Next button to continue the
installation procedure of the Rosemount 2460 System Hub.
1. Some modems must be configured with DIP switches, see
Configuration
non-standard configuration. This is a useful option if, for example, the Rosemount 2460 System
Hub is connected to a host that requires a lower baud rate than the default setting for the system
hub. It can also be useful in case field devices on different field ports use different communication
parameters such as baud rate. Then each port can be configured independently from the other
ports.
Non-standard settings may also be required in case the system hub is located far away from the
host since maximum communication speed for RS232 and RS485 depends on the cable length.
For Field Ports the Reply timeout and Number of retries parameters can be adjusted in case a
connected field device responds slowly to queries from the Rosemount 2460. The default setting
is sufficient in most cases.
For Host Ports the Min response time and Max response time define the time slot in which a
response from the Rosemount 2460 will be sent to a host system. If needed, you may change
these parameters to match the requirements for a particular host system.
Choose the desired protocol and configure the communication parameters. Default
communication parameters for the Rosemount 2460 ports are shown in
on page 58.
"Modem cards" on page
(1)
window lets you change from standard port configuration to a
139.
Configuration
March 2017
Table 4-1 and Table 4-2
59