Connecting To The Rosemount 2460 System Hub - Emerson Rosemount 2460 Reference Manual

Installation
March 2017
3.5.6

Connecting to the Rosemount 2460 System Hub

Connection to a host
There are several ways to connect a host system to a Rosemount 2460 System Hub:
to a Host Port using TRL2 bus

to a Host Port using RS232 or RS485

via Ethernet Eth1 port

The TRL2 Bus requires a twisted and shielded pair cable with a cross-sectional area of 0.50 to 2.5 mm
(AWG 20 to 14). A Rosemount 2180 Field Bus Modem (FBM) is used to connect the Rosemount 2460 to
TankMaster or other host computer.
A service PC can be connected to the Ethernet Eth3 port for configuration and maintenance.
For RS232 communication, wiring cross-sectional area must be at least 0.25 mm
The maximum length of the RS232 connection is 30 m at baud rate 4800.
See Figure 3-5 on page 33
Table 3-4. Data rate and maximum distances for RS232 communication
30
and Table 3-6 on page 34
Baud rate (bps)
2400
4800
9600
19200
for information on the terminal block connections.
Distance (m)
60
30
15
7.6
Reference Manual
00809-0100-2460, Rev DB
2
2
(AWG 24 or similar).
Installation