DigitalFlow™ XGF868i Startup Guide
17
Chapter 1. Installation
1.7.5.4
Wiring an RTD Inputs Option Card
The XGF868i RTD (Resistance Temperature Device) inputs option card provides two or four direct RTD inputs
(designated as A, B, C and D). Each RTD input requires three wires, and should be connected as shown on the label in
and
).
Note:
Before making any connections, complete the steps in
Preparing for Wiring
on
.
1.7.5.5
Wiring a 0/4-20 mA Analog Outputs Option Card
The analog outputs option card includes two isolated 0/4-20 mA outputs (designated as A and B). Connections to
these outputs may be made with standard twisted-pair wiring, but the total current loop impedance for these
circuits must not exceed 1000 ohms.
Before making any connections, complete the steps in
Preparing for Wiring
on
. Then, wire this option card
with the connections shown on the label in the rear cover (see
and
).
1.7.5.6
A Specific Example
To illustrate the procedures described in the previous sections for wiring the option cards, a specific example may
prove helpful. Assume that an XGF868i is equipped with an option card numbered
703-1223-08
.
in Appendix
B,
Data Records
, indicates that this option card includes two analog current inputs and two standard alarm relays.
1.7.5.7
Wiring the MODBUS/TCP Interface
Customers can also use a modified XGF868i that provides a MODBUS/TCP interface to communicate to an internal
network. An optional MODBUS/TCP card with a unique MAC (IP) address (installed only in slot 2) includes an RJ45
connector. To connect the MODBUS/TCP-enabled XGF868i to the network, insert the jack of an RJ45 cable into the
RJ45 connector, route the cable through one of the conduit holes using an appropriate cable clamp, and wire the
other end of the cable to the Ethernet network according to the manufacturer’s instructions (see Figure 11).
Note:
The MAC address for a specific XGF868i is included with customer documentation. For more information on
setting up the MAC address, refer to Chapter 6 of the
Programming Manual
.
Summary of Contents for DigitalFlow XGF868i
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