Specifications

48
Reference Manual
00809-0100-2460, Rev AA
Section 4: Configuration
November 2014
Configuration
Step 2. Port Configuration
1. Verify that the correct modem
(1)
(TRL2 or RS485) is installed and communication ports
are properly configured. Normally there is no need to change any communication
parameters. Standard configuration is automatically set for each modem type.
a. Port Type. The Rosemount 2460 has eight communication ports. They are normally
configured as six Field ports and two Host ports. Host ports can be connected to
TankMaster work stations as well as other hosts.
The Field ports are connected to Rosemount 2410 Tank Hubs and other field devices.
See also “Connecting the 2460 System Hub” on page 29.
b. Protocol. The Modbus protocol is the standard option in Rosemount Tank Gauging
systems.
c. Settings. Verify the communication protocol settings. The following communication
parameters are used for Rosemount 2460 Modbus communication:
Table 4-1. Modbus communication parameters for 2460 Host Ports
(1) See “Exchanging a Modem Card” on page 74 for instructions on how to change modem card.
Parameter RS485 bus TRL2 bus RS232
Baud rate 9600 4800 19200
Data bits per character 8 8 8
Stop bits 1 1 1
Parity No No N