Emerson Micro Motion Configuration And Use Manual page 191

Figure C-2: Connection over network
A
A. PC
B. RS‐232 to RS‐485 converter
Ω , 1/2‐watt resistors at both ends of the segment, if necessary
C. 120-
D. DCS or PLC
E. Transmitter with end‐cap removed
Note
This figure shows a serial port connection. USB connections are also supported.
4.
5.
6.
Table C-1: RS-485 connection parameters
Connection type Parameter
Service port
Protocol
PC Port
Modbus/RS-485
Protocol
PC Port
Address
Configuration and Use Manual
B
Start ProLink III.
Choose Connect to Physical Device.
Set the parameters that are required for your connection type.
Value
Service Port
The PC port that you are us-
ing for this connection.
Modbus RTU or Modbus ASCII
The PC port that you are us-
ing for this connection.
The Modbus address config-
ured for this transmitter.
The default is 1.
D
Optional or re-
quired?
Required
Required
Required
Required
Required
Using ProLink III with the transmitter
C
E
Auto-detection
No
No
Yes. The device accepts con-
nection requests that use ei-
ther protocol, and responds
using the same protocol.
No
No
185