Emerson FB3000 User manual

FB3000 RTU HART®I/O Module Field Installation Guide
D301918X012
June 2021
Remote Automation Solutions
FB3000 Remote Terminal Unit (RTU)
HART®I/O Module
Field Installation Guide
For Part Numbers:
3HRT04
3HTSG4

FB3000 RTU HART®I/O Module Field Installation Guide
D301918X012
June 2021
Device Safety Considerations
Reading these Instructions
Before operating the device, read these instructions carefully and understand their safety implications. In some situations,
improperly using this device may result in damage or injury. Keep this manual in a convenient location for future reference.
Note that these instructions may not cover all details or variations in equipment or cover every possible situation regarding
installation, operation, or maintenance. Should problems arise that are not covered sufficiently in the text, immediately
contact Customer Support for further information.
Protecting Operating Processes
A failure of this device – for whatever reason -- may leave an operating process without appropriate protection and could result
in possible damage to property or injury to persons. To protect against this, you should review the need for additional backup
equipment or provide alternate means of protection (such as alarm devices, output limiting, fail-safe valves, relief valves,
emergency shutoffs, emergency switches, etc.). Contact Remote Automation Solutions for additional information.
Returning Equipment
If you need to return any equipment to Remote Automation Solutions, it is your responsibility to ensure that the equipment
has been cleaned to safe levels, as defined and/or determined by applicable federal, state and/or local law regulations or
codes. You also agree to indemnify Remote Automation Solutions and hold Remote Automation Solutions harmless from any
liability or damage which Remote Automation Solutions may incur or suffer due to your failure to ensure device cleanliness.
Grounding Equipment
Ground metal enclosures and exposed metal parts of electrical instruments in accordance with OSHA rules and regulations as
specified in Design Safety Standards for Electrical Systems, 29 CFR, Part 1910, Subpart S, dated: April 16, 1981 (OSHA rulings are
in agreement with the National Electrical Code). You must also ground mechanical or pneumatic instruments that include
electrically operated devices such as lights, switches, relays, alarms, or chart drives.
Important: Complying with the codes and regulations of authorities having jurisdiction is essential to ensuring personnel
safety. The guidelines and recommendations in this manual are intended to meet or exceed applicable codes and regulations.
If differences occur between this manual and the codes and regulations of authorities having jurisdiction, those codes and
regulations must take precedence.
Protecting from Electrostatic Discharge (ESD)
This device contains sensitive electronic components which be damaged by exposure to an ESD voltage. Depending on the
magnitude and duration of the ESD, it can result in erratic operation or complete failure of the equipment. Ensure that you
correctly care for and handle ESD-sensitive components.
System Training
A well-trained workforce is critical to the success of your operation. Knowing how to correctly install, configure, program,
calibrate, and trouble-shoot your Emerson equipment provides your engineers and technicians with the skills and confidence
to optimize your investment. Remote Automation Solutions offers a variety of ways for your personnel to acquire essential
system expertise. Our full-time professional instructors can conduct classroom training at several of our corporate offices, at
your site, or even at your regional Emerson office. You can also receive the same quality training via our live, interactive
Emerson Virtual Classroom and save on travel costs. For our complete schedule and further information, contact the Remote
Automation Solutions Training Department at 800-338-8158 or email us at educatio[email protected].
Ethernet Connectivity
This automation device is intended to be used in an Ethernet network which does not have public access. The inclusion of this
device in a publicly accessible Ethernet-based network is not recommended.

FB3000 RTU HART®I/O Module Field Installation Guide
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HART®Input/Output Channels (3HRT04/3HTSG4)
The FB3000 RTU supports a HART®(Highway Addressable Remote Transducer) module with four
(4) channels. This allows the FB3000 to communicate with external HART devices such as
transmitters.
DANGER
Ensure the RTU is in a non-hazardous area. Never open the enclosure in a hazardous area.
DANGER
EXPLOSION HAZARD: Ensure the area in which you perform this operation is non-hazardous.
Performing this operation in a hazardous area could result in an explosion.
Insert the 3HRT04 module in any base chassis slot except slot 1 and insert its corresponding
3HTSG4 module below it.
Note: The 3HRT04 module requires a chassis of Revision H or newer.
The 3HRT04/3HTSG4 modules cannot be used in an extension chassis.
You can configure a channel for point-to-point operation in which case it communicates with a
single HART device. Alternatively, you can configure a channel for multi-drop operation in which it
communicates with up to five (5) HART devices in parallel.
HART Characteristics
Type
Number
Supported
Characteristics
HART channel
1 to 4
An individual HART channel can be configured in FBxConnect as either
an input or an output, but not both.
A HART input supports either point-to-point or multi-drop mode
A HART output supports only point-to-point mode; in multi-drop mode,
there is no analog signal output available.
Removing/Replacing the 3HRT04 Module
DANGER
Ensure the RTU is in a non-hazardous area. Never open the enclosure in a hazardous area.

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DANGER
EXPLOSION HAZARD: Ensure the area in which you perform this operation is non-hazardous.
Performing this operation in a hazardous area could result in an explosion.
Notes:
You can/remove replace any I/O module without removing power.
If you replace a 3HRT04 module with another 3HRT04 module, on insertion the new module uses
the configuration of the 3HRT04 module it replaced.
If replacing a module of a different type, for example replacing a 3MIX12 with a 3HRT04, on
insertion you will see a mismatch in FBxConnect. You will need to re-define the module in
FBxConnect as the new module type.
If you have an empty slot that has had no modules defined, on insertion the new module
assumes factory defaults and you must then configure it in FBxConnect.
1. Depress the orange tabs at the top and bottom of the 3HRT04 module to release the module
and slide it straight out of the slot.
2. Press the new replacement module into the slot until it is properly seated.
Removing/Replacing the 3HTSG4 Module
DANGER
Ensure the RTU is in a non-hazardous area. Never open the enclosure in a hazardous area.
DANGER
EXPLOSION HAZARD: Ensure the area in which you perform this operation is non-hazardous.
Performing this operation in a hazardous area could result in an explosion.

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1. If you are replacing an existing personality module that is already wired with an identical
personality module, and if there is no fault with the terminal block, leave wiring connected to
the terminal block, and disconnect the terminal block from the personality module by gently
rocking the terminal block from side to side until it pops out. Conversely, if there is a fault
with the terminal block, label wires coming in so you can transfer the wires to the correct
positions on the new terminal block. To wire an all-new module, see Wiring the Module.
Detaching the Terminal Block with Wires Still Attached
2. Using a ¼” slotted blade screwdriver, loosen the captive fastening screw at the top of the
personality module and slide the module straight out of the slot.
Removing a Personality Module

FB3000 RTU HART®I/O Module Field Installation Guide
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3. Press the new replacement personality module into the slot until it is properly seated, then
tighten the captive fastening screw.
Replacing a Personality Module
4. If you replaced an existing personality module with an identical replacement, and were able to
re-use the terminal blocks, reattach the terminal block by pressing it into place; otherwise,
wire the new terminal block as required.
Reattaching the Terminal Block

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Wiring the Module
DANGER
Ensure the RTU is in a non-hazardous area. Never open the enclosure in a hazardous area.
DANGER
EXPLOSION HAZARD: Ensure the area in which you perform this operation is non-hazardous.
Performing this operation in a hazardous area could result in an explosion.
You can wire HART channels for different modes of operation.
Point-to-Point Mode
In Point-to-Point mode, the HART link allows both a 4-20mA analog current mode signal as well as
the modulated HART digital signal riding on top of it. Depending upon the HART device connected,
you can configure the channel as an AI (which means the 250 ohm resistor is enabled) or an AO
(which means the 250 ohm resistor is disabled).
Figure 1shows how to wire all four HART channels in point-to-point mode. In this case, each HART
channel only communicates to a single HART device. You choose whether a given channel serves as
an input or output in FBxConnect. The 24V internal loop power supply powers the HART devices.
The HART interface only sinks current, it cannot source current. As an output, each channel
simultaneously provides an analog current signal output (sink current only at 4-20 mA) and a HART
signal modulated on top of it.
Figure 1. HART Wiring – Point-to-Point Mode
HD
HART Device

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Multi-Drop Mode
In Multi-Drop Mode, only the HART digital signaling (FSK – Frequency Shift Keying) is present and
no 4-20mA analog current signal is permitted (no AO allowed). Each device can support a
maximum 4mA bias current. Because the maximum rated output (sink) current of any 3HRT04
Module channel is 20mA, and each device can draw 4mA, a HART channel in multidrop mode
supports a total of 5 HART devices. With each of the 5 HART devices permitted to draw 4mA, the
sum of the currents is 20mA – the maximum current.
Figure 2 shows how to wire a HART channel for multi-drop mode. Multi-drop mode only supports
inputs, you cannot have multi-drop outputs.
You can wire each channel the same way to allow for up to 20 HART devices (5 per channel).
Figure 2. HART Wiring – Multi-Drop Mode on Channel 1
HD
HART Device

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Figure 3 shows how to wire a HART channel for devices which do not use loop power but get power
from an external power supply.
Figure 3. HART Wiring – External Power Supply
HD
HART Device
P
External 24V Power Supply
Analog Input Mode (HART Communication Disabled)
If you have an unused HART channel, you can use it as a 4-20mA analog input (AI current mode).
In FBxConnect, you must Enable the 250 Ohm Termination Resistor and set the HART Comm Mode
to Disabled.
Figure 4shows two examples for wiring a HART channel as a 4-20mA analog input. In the figure, an
externally powered current loop transmitter connects to Channel 1 and a loop powerd current loop
transmitter connects to Channel 4.

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Figure 4. Methods for Connecting 4mA to 20mA Analog Inputs to 3HRT04 Channel (No HART communications)
1
4-20mA Analog Signal Loop
2
Transducer
3
Power Supply
4
Sensor Input
5
External Power Source
6
3HSTG4 Module internal ground connections (for information only; not visible to user)

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Analog Output Mode (HART Communication Disabled)
If you have an unused HART channel, you can use it as a 4-20mA current sinking analog output.
In FBxConnect, you must Disable the 250 Ohm Termination Resistor and set the HART Comm
Mode to Disabled.
Figure 5shows two examples for wiring a HART channel as a 4-20mA analog output. In the figure,
an externally powered current loop receiver connects to Channel 1 and a 24VDC loop supply-
powered current loop receiver connects to Channel 4.
Figure 5. Methods for Connecting 4mA to 20mA Analog Outputs to 3HRT04 Channel (No HART communications)
1
4-20mA Analog Signal Loop
2
Transducer
3
Driver
4
Power Supply
5
Actuator
6
3HSTG4 Module internal ground connections (for information only; not visible to user)
7
External Power Source

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Software Configuration
Consult the FBxConnect online help for full details. What follows is an overview of the steps:
1. From the Configure tab in FBxConnect, click I/O Setup > HART.
2. Select the HART channel you want to configure; there are four HART channels per module.
3. If this channel is an analog input, click the Configuration tab to configure the AI.
4. Specify whether this is a Primary or Secondary HART Master in the HART Master Type field.
5. Enable the Termination Resistor if required.
6. Choose the HART Comm Mode:
If you have a single HART device on the channel, select Point to Point
If multiple devices are multi-dropped on the channel, select Multidrop and specify the
Number of Devices.
7. Click Save. If you chose Multidrop, the HART menu creates a button for each of the devices.
8. Click on the Device button to configure the HART device on this channel.
9. Select the variables you want to poll from the device, then click Save and Close the screen.
If this channel uses multi-drop, repeat steps 8 and 9 for any unconfigured devices.

FB3000 RTU HART®I/O Module Field Installation Guide
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