
Chapter 1. Installation
12
DigitalFlow™ XMT868i Startup Guide
1.7.5
Wiring Option Cards
The XMT868i can accommodate one option card in
Slot 1
and one option card in
Slot 2
. The following types of option
cards are available only in the combinations listed in Table 22:
•
Alarm Relays (Slot 1)
•
Analog Inputs (Slot 1)
•
Totalizer/Frequency Outputs (Slot 1)
•
RTD Inputs (Slot 1)
•
Analog Outputs (Slot 1)
•
MODBUS Communications (Slot 2)
•
MODBUS/TCP Communications (Slot 2)
•
Ethernet (Slot 2)
•
Foundation Fieldbus (Slot 2)
•
Data logging (Slot 2) -
no wiring required
1.7.5.1
Preparing for Wiring
Wiring any option card installed in Slot 1 requires completion of the following general steps:
1.
Disconnect the main power to the unit and remove the rear cover.
2.
Install a cable clamp in the chosen conduit hole on the side of the electronics enclosure and feed a standard
twisted-pair cable through this conduit hole.
3.
Locate the 12-pin terminal block (
J2
) in Figure 10 on page 23 and wire the option card as indicated on the label
inside the rear cover (see Figure 3 on page 6 and Figure 11 on page 24). Secure the cable clamp.
IMPORTANT:
Because of the attached wiring label, all rear covers must remain with their original meters.
WARNING!
To meet CE Mark requirements, all cables must be installed as described in Appendix A,
CE Mark
Compliance
.
4.
If wiring of the unit has been completed, reinstall the rear cover on the enclosure and tighten the set screw.
Note:
Prior to use, the option card must be set up and calibrated. See Chapter 1,
Programming Site Data
, in the
Programming Manual
and Chapter 1,
Calibration
, in the
Service Manual
for detailed instructions.
For more specific instructions on particular option cards, proceed to the appropriate sub-section(s) that follow.
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