Reference Manual
00809-0100-4841, Rev. AA
May 2007
Rosemount 3490 Series
4-74
Serial Communications This section is applicable if an RS232 serial port of a communication device
(e.g. PC) is connected to the RS232 terminals of the 3490 Series Control Unit
or data download socket of the 3493. (For connections details, refer to
Section 3: The plug/socket connectors are polarized to prevent
inter-changeability and incorrect connection).
Menu:
MAIN MENU / SETUP / [CONTROL UNIT /] OUTPUT / SYSTEM / COMMS
P710 Address (Factory default is 0)
Leave this at the factory default setting.
P711 Interface
Choose between "Log download" (model 3493), "RS232 HART", or "None".
P712 Baud Rate (Factory default is "1200" or "9600)
This must be the same as set for the RS232 serial port of the communication
device. Range is 1200 to 115200.
P713 Start Bits (Factory default is 1)
This must be the same as set for the RS232 serial port of the communication
device. Range is 0 to 9.
P714 Data Bits (Factory default is 8)
This must be the same as set for the RS232 serial port of the communication
device. Range is 0 to 9.
P715 Parity (Factory default is "Even")
This must be the same as set for the RS232 serial port of the communication
device. Options are "Even", "Odd" or "None".
P716 Stop Bits (Factory default is 1)
This must be the same as set for the RS232 serial port of the communication
device. Range is 0 to 9
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