644
RTD Module Communications Setup Procedure
Communication between the BE1-11g and the RTD module can be accomplished via Ethernet or RS-485.
For RS-485 communication, RS-485 Port Protocol option must be "N". Initial settings for the RTD module
must be made via Ethernet.
An IP address is assigned to the RTD module in all cases even if the connection between the RTD
module and the BE1-11g will be RS-485. Assigning an IP address to the RTD module gives the user the
option to save a settings file and to view the serial number and firmware version of the RTD module using
BESTCOMSPlus.
Perform one of the following procedures to set up the RTD module. It is assumed that the BE1-11g is
already connected to the PC or network.
Procedure 1
The PC and BE1-11g are connected through a network or the PC is connected directly to the BE1-11g via
Ethernet cable or USB cable. The RTD module connects to the BE1-11g via Ethernet or RS-485. See
Figure 392.
N
e
t
w
o
r
k
Connect to RTD Module
1.
Connect an Ethernet cable directly between the PC and RTD module.
2.
Apply operating power to the RTD module.
3.
Determine the IP address, Subnet Mask, and Default Gateway of the PC Ethernet port for later use.
Open a Windows® command prompt by clicking Start > Run. Type "cmd", and click OK. Type
"ipconfig" and press enter.
RTD Module
RED
BLACK
BLACK
Figure 391. External Three-Wire RTD Input Connections
Ethernet
PC
Ethernet
BE1-11g
RTD Module
Figure 392. Procedure 1
RTD Module
RTD1+
RTD1–
RTD1C
Ethernet
OR
RS-485
RTD Module
= Optional
9424200994 Rev U
PC
USB
BE1-11g
Ethernet
BE1-11g
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