83-6 9424200996
RTD Module BE1-11m
Figure 83-6. External Three-Wire RTD Input Connections
RTD Module Communications Setup Procedure
Communication between the BE1-11m 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 BE1-11m 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 BE1-11m is
already connected to the PC or network.
Procedure 1
The PC and BE1-11m are connected through a network or the PC is connected directly to the BE1-11m
via Ethernet cable or USB cable. The RTD module connects to the BE1-11m via Ethernet or RS-485. See
Figure 83-7.
Figure 83-7. Procedure 1
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.
RTD1+
RTD1–
RTD1C
RTD Module
P0061-41
RED
BLACK
BLACK
N
e
t
w
o
r
k
PC
BE1-11m
RTD Module
Ethernet
Ethernet
P0061-85
RS-485
Ethernet
= Optional
OR
PC
BE1-11m
RTD Module
Ethernet
USB
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