Emerson 5300, 5400 User Manual

Manual Supplement

00809-0500-4530, Rev AA
October 2010

Rosemount 5300/5400 Series

Rosemount 5300/5400 Series
with HART to Modbus Converter

Safety Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-2

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-3

Workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 1-3

Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-4

Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1-4

Establish HART Communication . . . . . . . . . . . . . . . . . . . .page 1-10

Transmitter Configuration . . . . . . . . . . . . . . . . . . . . . . . . .page 1-13

Modbus Communication Protocol Configuration . . . . . .page 1-14

Alarm Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 1-22

Common Modbus Host Configuration . . . . . . . . . . . . . . . page 1-25

Specific Modbus Host Configuration . . . . . . . . . . . . . . . . page 1-30

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 1-34

HMC Firmware Upgrade in Rosemount Radar Master . .page 1-35

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 1-40

This instruction is a supplement to the Rosemount 5300 Series Reference
Manual (Document No. 00809-0100-4530), and the Rosemount 5400 Series
Reference Manual (Document No. 00809-0100-4026).

www.rosemount.com

Manual Supplement

00809-0500-4530, Rev AA

Rosemount 5300/5400 Series

October 2010

SAFETY MESSAGES Procedures and instructions in this section may require special precautions to

ensure the safety of the personnel performing the operations. Information that
raises potential safety issues is indicated by a warning symbol ( ). Please

refer to the following safety messages before performing an operation
preceded by this symbol.

Failure to follow safe installation and service guidelines could result in death or
serious injury

• Make sure the transmitter is installed by qualified personnel and in accordance
with applicable code of practice.

• Use the equipment only as specified in the Rosemount 5300 Series Reference
Manual (Document No. 00809-0100-4530), the Rosemount 5400 Series
Reference Manual (Document No. 00809-0100-4026), and in this Manual
Supplement. Failure to do so may impair the protection provided by the
equipment.

• Do not perform any services other than those contained in this manual unless
you are qualified.

Explosions could result in death or serious injury

• Verify that the operating environment of the transmitter is consistent with the
appropriate hazardous locations specifications.

• To prevent ignition of flammable or combustible atmospheres, disconnect
power before servicing.

®

• Before connecting a HART
an explosive atmosphere, make sure the instruments in the loop are installed in
accordance with intrinsically safe or non-incendive field wiring practices.

• To avoid process leaks, only use o-ring designed to seal with the
corresponding flange adapter.

Electrical shock can result in death or serious injury

• Avoid contact with the leads and terminals. High voltage that may be present
on leads can cause electrical shock.

• Make sure the main power to the Rosemount 5300 Series transmitter or
Rosemount 5400 Series transmitter is off and the lines to any other external
power source are disconnected or not powered while wiring the transmitter.

Probes with non-conducting surfaces

• Probes covered with plastic and/or with plastic discs may generate an
ignition-capable level of electrostatic charge under certain extreme conditions.
Therefore, when the probe is used in a potentially explosive atmosphere,
appropriate measures must be taken to prevent electrostatic discharge.

or FOUNDATION™ fieldbus based communicator in

1-2

Manual Supplement

5300/5400
transmitter
electronics

HART

signals

HART to
Modbus

Converter

Modbus and
Levelmaster

communication

Remote

Terminal

Unit

Rosemount

Radar Master/

Field

Communicator

HART signals

5300/5400 transmitter enclosure

00809-0500-4530, Rev AA
October 2010

Rosemount 5300/5400 Series

INTRODUCTION The Rosemount 5300 Series and Rosemount 5400 Series transmitters are

Modbus compatible measurement devices that support commun ication with a
Remote Terminal Unit (RTU) using a subset of read, write, and diagnostic
commands used by most Modbus compatible host controllers. The
transmitters also support communication through Levelmaster and Modbus
ASCII protocols.

®

The HART
Rosemount 5300 and Rosemount 5400 transmitter enclosure and provides
power to and communicates with the transmitter through a HART interface.

Figure 1-1. System Overview

to Modbus Converter (HMC) module is located inside the

During normal operation, the HMC “mirrors” the conten t s of process var iables
from the 5300/5400 transmitter to the Modbus registers. To configure the
5300/5400 transmitter, it is possible to connect a configuration tool to the
HMC. See “Transmitter Configuration” on page 1-13 for more information.

WORKFLOW Overview of workflow for commissioning a Rosemount 5300 or a Rosemount

5400 transmitter with Modbus protocol:

1. Mount the transmitter on the tank.

2. Connect the power and communication wires.

3. Establish HART communication with the transmitter through Rosemount
Radar Master , or a Field Communicator. This is done by:

• Connecting to the HART terminals, or

• Connecting to the MA/MB terminals (tunneling mode)

4. Configure the transmitter.

5. Configure the Modbus communication.

6. Configure Modbus host.

7. Verify output values as reported by the transmitter.

1-3

Rosemount 5300/5400 Series

Manual Supplement

00809-0500-4530, Rev AA

October 2010

MECHANICAL INSTALLATION

ELECTRICAL INSTALLATION

For instructions on how to mount the Rosemount 5300/5 400 transmitter, refer
to the Rosemount 5300 Series Reference Manual (Document No.
00809-0100-4530), and the Rosemount 5400 Series Reference Manual
(Document No. 00809-0100-4026).

NOTE

For general electrical installation requirements, including grounding
requirements, refer to Rosemount 5300 Series Refere nce Manual (Document
No. 00809-0100-4530), and the Rosemo un t 54 00 Seri es Re fe re nc e Ma n ua l
(Document No. 00809-0100-4026).

To connect the Rosemount 5300/5400:

1. Disconnect/shut off the electrical power to transmitter head and then
open the instrument cover. Do not remove the cover in an explosive
atmosphere with a live circuit.

2. Pull the cable through the cable gland/conduit. For the RS-485 bus, use
shielded twisted pair wiring, preferably with an impedance of 120
(typically 24 AWG) in order to comply with the EIA-485 standard and
EMC regulations. The maximum cable length is 4000 ft/1200 m.

3. Make sure that the transmitter housing is grounded, then connect wires
according to Figure 1-2 and Table 1-1. Connect the lead that originates
from the “A” line from the RS-485 bus to the terminal marked MB, and
the lead that originates from the “B” line to the terminal marked MA.

4. If it is the last transmitter on the bus, connect the 120 termination resistor.

5. Connect the leads from the positive side of the power supply to the
terminal marked POWER +, and the leads from the negative side of the
power supply to the terminal marked POWER -. The power supply
cables must be suitable for the supply volt age and ambien t temperatur e,
and approved for use in hazardous areas, where applicable.

6. Attach and tighten the housing cover. Tighten the cable gland, then plug
and seal any unused terminals, and connect the power supply.

1-4

Manual Supplement

RS-485 Bus

B

A

Power
Supply

HART

+

HART -

120

120

In case it is the last
transmitter on the
bus, connect the
120

termination

resistor

v

120

00809-0500-4530, Rev AA
October 2010

Figure 1-2. Field Wiring Connections

Rosemount 5300/5400 Series

HART to Modbus Converter

-

HART

+

MODBUS

(RS-485)

POWER

Ambients > 60 ºC
Use wiring rated
for min 90 ºC

erter

MB

MB

MA

-

+

MODBUS

(RS-485)

MA

-

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Manual Supplement

MODBUS

POWER

HART

(RS-485)

HART to Modbus Converter

MB

MA

Ambients > 60 ºC
Use wiring rated
for min 90 ºC

-

-

+

+

HART +

HART -

00809-0500-4530, Rev AA

Rosemount 5300/5400 Series

Connection Terminals The connection terminals are described in Table 1-1 below:

Table 1-1. Connection Terminals

Connector label Description Comment

HART + Positive HART connector Connect to PC with RRM

software, Field

HART - Negative HART connector

MA

MB

Modbus RS-485 B connection
(RX/TX+)

Modbus RS-485 A connection
(RX/TX-)

(1)

(1)

POWER + Positive Power input terminal
POWER - Negative Power input terminal

(1) The designation of the connectors do not follow the EIA-485 standard, which states

that RX/TX- should be referred to as 'A' and RX/TX+ as 'B'.

Communicator, or other
HART configurators.

Connect to RTU

Apply +8 Vdc to +30 Vdc
(max. rating)

October 2010

Figure 1-3. Connection Terminals
for Rosemount 5300/5400 with
HART to Modbus Converter

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Manual Supplement

MODBUS

POWER

HART

(RS-485)

HART to Modbus Converter

MB

MA

-

-

+

+

MODBUS

POWER

HART

(RS-485)

HART to Modbus Converter

MB

MA

-

-

+

+

Ambients > 60 ºC
Use wiring rated
for min 90 ºC

Ambients > 60 ºC
Use wiring rated
for min 90 ºC

Power
Supply

120

120

RS-485 Bus

BAModbus

Master

Z

External
Ground Screw

Internal
Ground Screw

External
Ground Screw

Internal
Ground Screw

00809-0500-4530, Rev AA
October 2010

Rosemount 5300/5400 Series

RS-485 Bus • The 5300/5400 transmitters do not provide electrical isolation between

the RS-485 bus and the transmitter power supp ly

• Maintain a bus topology and minimize stub length

• Figure 1-4 identifies multidrop wiring topology, where up to 32 devices
may be wired on one RS-485 bus

• The RS-485 bus needs to be terminated once at each end, but should
not be terminated elsewhere on the bus

Installation cases Install the Rosemount 5300/5400 Series Transmitters as shown in Figure 1-4.

• Use common ground for Modbus Master and Power Supply

• The Power cables and RS-485 Bus are in the same cable installation

• An ground cable is installed and shall be used (cable size ≥4 mm
according to IEC60079-14, or size according to applicable national
regulations and standards). A properly installed threaded conduit
connection may provide sufficient ground.

• The cable shielding is grounded at master site (optional)

NOTE

The HMC equipped transmitter contains intrinsically safe circuits that require
the housing to be grounded in accordance with national and local electrical
codes. Failure to do so may impair the protection provided by the equipment.

Figure 1-4. Multidrop Connection of
5300/5400 Transmitters

1-7

Rosemount 5300/5400 Series

Power
Supply

120

120

RS-485 Bus

BAModbus

Master

Z

External
Ground Screw

External
Ground Screw

Internal
Ground Screw

Internal
Ground Screw

v

For Star Topology
connection,
connect the 120



termination
resistor to the
transmitter with
the longest cable
run.

Alternatively, the Rosemount 5300/5400 Series Transmitters can be installed
as shown in Figure 1-5. If this wiring layout is used, there is an increased risk
for communication disturbances due to differences in potential between
grounding points. By using the same grounding point for Modbus Master and
Power Supply, this risk is reduced.

Figure 1-5. Alternative Multidrop
Connection of 5300/5400
Transmitters

Manual Supplement

00809-0500-4530, Rev AA

October 2010

Figure 1-6. Star Topology
Connection of 5300/5400
Transmitters

HART to Modbus Converter

-

HART

+

HART to Modbus Converter

-

HART

+

MODBUS

(RS-485)

POWER

Ambients > 60 ºC
Use wiring rated
for min 90 ºC

MB

MA

-

+

MODBUS

(RS-485)

MB

POWER

Ambients > 60 ºC
Use wiring rated
for min 90 ºC

MA

-

+

Star Topology

For a St ar Topology Connection of the 5300/5400 transmitters, the transmitter
with the longest cable run needs to be fitted with a 120- termination resistor.

erter

HART to Modbus Converter

MB

MA

MODBUS

(RS-485)

-

-

+

POWER

Ambients > 60 ºC

HART

Use wiring rated
for min 90 ºC

HART to Modbus Converter

MB

MA

MODBUS

(RS-485)

-

-

+

POWER

Ambients > 60 ºC

HART

Use wiring rated
for min 90 ºC

+

+

HART to Modbus Converter

MB

MA

MODBUS

(RS-485)

MB

MA

MODBUS

(RS-485)

-

-

+

POWER

Ambients > 60 ºC

HART

Use wiring rated
for min 90 ºC

+

-

HART to Modbus Converter

MB

MA

MODBUS

(RS-485)

-

-

+

POWER

Ambients > 60 ºC

HART

Use wiring rated
for min 90 ºC

+

1-8

HART to Modbus Converter

MB

MA

MODBUS

(RS-485)

-

-

+

POWER

Ambients > 60 ºC

HART

Use wiring rated
for min 90 ºC

+

Manual Supplement

Power
Supply

RS-485
Bus

Up to four
external
devices

External HART
device 2

External HART
device 1

00809-0500-4530, Rev AA
October 2010

Rosemount 5300/5400 Series

External HART Devices (Slaves)

Table 1-2. Approximate update
rates for measurement values

The HMC supports up to four external HART devices. The external devices
are separated by using the HART address. The address must be different
between the external devices and only addr e sse s 1 to 5 are allo we d for
multiple slaves. Connect the devices one at a time and change the short
address prior to connecting the next device by using a HART Configuration
Tool such as RRM, or a Field Communicator.

NOTE

The power supply from the HMC to external HART devices is not intrinsically
safe. In a hazardous environment, any exter n al HA RT device conn ec te d to
the HMC must have Flameproof/Explosion-proof certification.

The HMC cyclically polls the HART devices for measurement values. The
update rate depends on the number of connected devices and is shown in
Table 1-2.

No. of devices
(slaves)

1 2 seconds
2 3 seconds
3 4 seconds
4 5 seconds
5 5 seconds

Approx. update rate

Figure 1-7. The HMC Module
supports up to four external devices
(slaves)

HART to Modbus Converter

-

+

MB

MA

MODBUS

(RS-485)

-

+

POWER

HART

Ambients > 60 ºC
Use wiring rated
for min 90 ºC

1-9

Rosemount 5300/5400 Series

HART
20 seconds

Modbus RTU
20 seconds

Configured
protocol
(Modbus RTU,
Levelmaster,
or Modbus
ASCII)
20 seconds

HART
20 seconds

Time

0 s 20 s 40 s 60 s 80 s 100 s

Configured
protocol
(Modbus RTU,
Levelmaster,
or Modbus
ASCII)
20 seconds

Manual Supplement

00809-0500-4530, Rev AA

October 2010

ESTABLISH HART COMMUNICATION

Connect to the MA/MB terminals

Figure 1-8. RS-485 Communication
after startup

The Rosemount 5300 Series and Rosemount 5400 Series can be configured
using the Rosemount Radar Master (RRM) PC software or a Field
Communicator. Configuration is done by sending HART commands through
the HART to Modbus Converter (HMC) to the 5300/5400 transmitter
electronics. To establish HART communication, connect to the MA/MB
terminals, or to the HART terminals. Both alternatives are desc rib ed belo w.

The 5300/5400 level transmitter can be configured with RRM using the MA,
MB terminals.

An RS-485 Converter is required to connect to the transmitter.
The transmitter will try to establish communication using different protocols

during 20 second timeslots from time of startup.

The transmitter will continue to use a communication protocol once
communication has been established.

1-10

Manual Supplement

00809-0500-4530, Rev AA
October 2010

Rosemount 5300/5400 Series

To configure the 5300/5400 level transmitter using RRM and the MA, MB
terminals, do the following:

1. Connect the RS-485 Converter to the MA, MB connectors.

2. Start RRM and open Communication Preferences.

3. Enable HART communication and make sure the port for the RS-485
Converter is selected. Use the following settings:

4. Connect the power wires (or cycle power) to the transmitter.

5. Wait 20 seconds and then open the Sea rch Device windo w in RRM (also
see note below). Make sure HART address 1 is being scanned.

1-11

Rosemount 5300/5400 Series

6. Connect to the transmitter and perform the necessary configuration.

7. After completing the configuration, disconnect the RS-485 Converter,
connect the Modbus communication wires and cycle power to the
transmitter

8. Verify communication between the transmitter and the RTU is
established (can take up to 60 seconds from startup) .

NOTE

Take the following into consideration if there are multiple 5300/5400 Modbus
units on the bus:

By default, the transmitters have HART address 1. It will not be possible to
establish communication on HART address 1 if several transmitters have the
same address. In this case, there are alternative solutions to establish
communication:

1. Select the Scan by T ag option in the Search Device window in RRM and
enter the HART Device Tag of the transmitter. Communication can now
be established with an individual transmitter even if several devices have
the same HART address.

Manual Supplement

00809-0500-4530, Rev AA

October 2010

Connect to the HART terminals

1-12

2. Make sure the 5300/5400 transmitter is alone on bu s. Disconnect or tur n
off power from any other devices.

To configure the 5300/5400 transmitter, connect the communicator or PC to
the HART terminals using a HART modem, see Figure 1-3 on p a ge 1-6. Both
the configuration tool and the RS-485 bus can be connected simultaneously.
Configuration data is sent with HART commands through the HMC to the
5300/5400 transmitter electronics, as illustrated in Figure 1-1 on page 1-3.
Note that the power supply must be connected during configuration, see also
“Electrical Installation” on page 1-4.

NOTE

Measurement data is not updated to the Modbus Master when a configur ation
tool is connected.

Manual Supplement

00809-0500-4530, Rev AA
October 2010

Rosemount 5300/5400 Series

TRANSMITTER CONFIGURATION

Configuration data such as Tank Height, Upper Null Zone, dielectric
constants, and other basic parameters are configured in the same way as for
a standard Rosemount 5300/5400 transmitter. For more information, see the
Rosemount 5300 Series Quick Installation Guide (Document No.
00825-0100-4530), and the Rosemount 5400 Series Quick Installation Guide
(Document No. 00825-0100-4026).

Make sure that the measurement unit of the Primary Variable (PV) matches
the configuration of the Modbus Host since the transmitter output value does
not include any information on associated measurement units.

For further information on basic configuration, see the Rosemount 5300
Series Reference Manual (Document No. 00809-0100-4530), and the
Rosemount 5400 Series Reference Manual (Document No.
00809-0100-4026).

NOTE

The 5300/5400 transmitter with Modbus protocol is configured to HART
address 1 at factory. This reduces power consumption by locking the analog
output at 4 mA.

1-13

Rosemount 5300/5400 Series

Manual Supplement

00809-0500-4530, Rev AA

October 2010

MODBUS COMMUNICATION PROTOCOL CONFIGURATION

Table 1-3. List of RTUs’ Supported
Protocols

The Rosemount 5300/5400 level transmitter can communicate with RTUs
using Modbus RTU (often referred to as just “Modbus”), Modbus ASCII, and
Levelmaster (also known as “ROS,” “Siemens,” or “Tank” protocol).

RTU Protocols

ABB Totalflow Modbus RTU, Levelmaster
Bristol ControlWave Micro Modbus RTU
Emerson Process

Management ROC800 Series
Emerson Process

Management FloBoss 107
Kimray DACC 2000/3000 Levelmaster
ScadaPack Modbus RTU
Thermo Electron Autopilot Modbus RTU, Levelmaster

(1) Levelmaster protocol should be used when using the Emerson

Process Management Digital Level Sensor (DLS) User Program
or Application Module together with the device. Use Modbus
RTU in other cases.

Modbus RTU, Levelmaster

Modbus RTU, Levelmaster

(1)

(1)

Modbus ASCII is not commonly used, since it doubles the amount of bytes
for the same message as the Modbus RTU.

Using RRM to change communication parameters

If you do not have any of these RTUs, check your RTU manual to see which
protocols it supports.

NOTE

To change Modbus communication parameters, the Rosemount 5300/5400
must use HART address 1, the default address.

NOTE

After changing communication pa rameters, disconnect th e HART modem a nd
wait at least 60 seconds for the change to take effect.
In case the MA/MB terminals are used for connection to the HMC, disconnect
the RS-485 Converter, cycle power to the transmitter and wait up to 60
seconds for the change to take effect.

1-14

Manual Supplement

Modbus Setup

00809-0500-4530, Rev AA
October 2010

Rosemount 5300/5400 Series

To change the Modbus address and communication parameters in
Rosemount Radar Master (RRM):

1. Start RRM and connect to the transmitter.

2. In RRM, select Setup>General.

3. Select the Communication tab.

4. Click the Modbus Setup button.

5. In the Modbus Setup window, select Modbus protocol and type the
desired Modbus address.

6. Enter the baud rate, parity, and stop bits, then click the OK button.

It is also possible to enter a user-defined Modbus Message in the Modbus
String area.

See separate sections below for more details regarding each Modbus
protocol.

1-15

Rosemount 5300/5400 Series

Manual Supplement

00809-0500-4530, Rev AA

October 2010

Using a Field Communicator to change communication parameters

Modbus RTU Communication Setup

Table 1-4. Modbus RTU
Communication Parameters

NOTE

To change Modbus communication parameters, the Rosemount 5300/5400
must use HART address 1, the default address.

NOTE

After changing communication parameters, disconnect the Field
Communicator and wait up to 60 seconds for the change to t ake effect.

The Modbus communication parameters can be changed by enter ing a text
string in the HART Message parameter. See separate sections below for
details regarding each Modbus protocol and what strings to use.

When using the Field Communicat or, the Message Area is reached using
HART command [2,2,1], and then selecting Message (menu item 11 for
Rosemount 5300 and menu item 10 for Rosemount 5400).

The Rosemount 5300/5400 is configured with the default Modbus RTU
address 246, and with the following Modbus RTU communication parameter
default settings:

Parameter Default Value Configurable Values

Baud Rate 9600 1200, 2400, 4800, 9600, 19200

(1)

Start Bits
Data Bits
Parity None None, Odd, Even
Stop Bits One One or Two
Address

range

(1) Start Bits and Data Bits cannot be changed.

One One

(1)

Eight Eight

246 1-255

Table 1-5. Communication
Parameters Used by the Host
(example)

1-16

To reset the communication parameters to default M odbus RTU settings, use
the following Modbus Message:

HMC

Modbus RTU Parameter Configuration Example

You want to use address 44 for the 5300/5400 transmitter, and the following
communication parameters are used by the host:

Parameter Value

Baud Rate 4800
Start Bits One
Data Bits Eight
Parity Odd
Stop Bits Two

Manual Supplement

00809-0500-4530, Rev AA
October 2010

Rosemount 5300/5400 Series

To configure the 5300/5400 transmitter to communicate with the Host in this
example, the following text string is written to the HART Slave 1 Message
Area:

HMC A44 B4800 PO S2.
HMC: These three letters are used for safety and will eliminate the risk of

changing the configuration data by mistake.
A44: A indicates that the following number is the new address (address 44).

Leading zeroes are not needed.
B4800: B indicates that the following number is the new baud rate (1200,

2400, 4800, 9600, 19200).
PO: P identifies the following letter as parity type (O = odd, E = even, and

N = none).
S2: S indicates that the following figure is the number of stop bits (1 = one,

2 = two).
Only values that differ from the current values need to be included. For

example, if only the address is changed, the following text string is written into
the 5300/5400 (HART Slave 1) Message Area:

Levelmaster Communication Setup

Table 1-6. Levelmaster
Communication Parameters

HMC A127,
indicates that 127 is the new address.

The default and configurable parameter values can be found in Table 1-6.

Parameter Default value Configurable value

Baud Rate 9600 1200, 2400, 4800, 9600, 19200
Start Bits One One
Data Bits Seven Seven, Eight
Parity None None, Odd, Even
Stop Bits One One or Two
Address 1 1-99

To reset the communication parameters to default Levelmaster settings, use
the following Modbus Message:

HMC M2

1-17

Rosemount 5300/5400 Series

Levelmaster Parameter Configuration Example

You want to use address 2 for the 5300/5400 transmitter and the host uses
the following parameters:

Table 1-7. Parameters Used by the
Host (in case of Levelmaster,
example)

Parameter Value

Baud Rate 9600
Start Bits One
Data Bits Seven
Parity None
Stop Bits One

To configure the 5300/5400 transmitter to communicate with the Host in this
example, the following text string is written to the Modbus Message area.

HMC M2 A2 B9600 D7 PN S1.

NOTE

Include all the parameters when writing to the message area.

Manual Supplement

00809-0500-4530, Rev AA

October 2010

Note that an address must be unique on the bus.
HMC: These three letters are used for safety and will eliminate the risk of

changing the configuration data by mistake.

M2: This means that the Levelmaster protocol is to be used.
A2: A indicates that the following is the new address (address 2). Leading

zeroes are not needed.
B9600: B indicates that the following number is the new baud rate (1200,

2400, 4800, 9600, 19200).
D7: D indicates that the following data bits are to be used (7 = seven,

8 = eight).
PN: P identifies the following letter as parity type (O = odd, E = even, and

N = none).
S1: S indicates that the following figure is the number of stop bits (1 = one,

2 = two).
Note: Start Bits are not configurable and cannot be set.

1-18

Manual Supplement

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October 2010

Table 1-8. Implemented Functions
of Levelmaster Protocol

Rosemount 5300/5400 Series

In Table 1-8 and Table 1 -9 is a desc rip tio n of th e impl e me nted fun ct i on s of
Levelmaster protocol in the HMC.

Input format Description Output format

UnnN?
UnnNmm
UnnF?
UnnFx?

Unn?

(1) In this case, number of floats is set to 1. If number of floats is set to 2, the Output Format

would be: UnnDddd.ddDddd.ddFfffEeeeeWwwwCcccc

NOTE

If one float is sent, it is “Float1”. If two floats are sent, it is “Float 1” before
“Float 0”.

Return ID number
Set ID number
Return number of floats
Set number of floats

Return floats and other data

UnnNnnCcccc
UnnNOKCcccc
UnnFxCcccc
UnnFOKCcccc
UnnDddd.ddFfffEeeee

WwwwCcccc

(1)

Table 1-9. Letters and Expressions
Used in Previous Tables

Letter Description

nn is used to identify slave to respond,

nn

nn is a number 00-99 or ** (wildcard).
The EmulCtrl Address Holding register can be configured to a higher
value than 99. In that case, the address will be truncated to 99.

mm
x

mm is the new ID number for the slave; mm is a number 00-99
x is the number of floats returned when slave receives Unn?, x is a

number 0-2.

.

cccc Is the 16 bit CRC checksum, cccc are hexadecimal characters.
ddd.dd

ddd.dd is the distance value from slave 1. Note that the first d can also be

a ‘-’ (minus).
Float 1 Slave 1 PV.
Float 0 Slave 1 SV.
fff The temperature value. Configured by Holding Register 3208 in HMC.

An error value.
eeee

Bit 0: Invalid SV value (Float 0).

Bit 8: Invalid Temperature value.

Bit 12: Invalid PV value (Float 1)

.

Wwww A warning value, not used in this implementation.

(1) Any of the four available variables from any of the five HART slaves can be selected as

the temperature source.
The least four significant bits (bit 0-3) select the variable number. Bits 4-7 select the HART
slave address. If invalid values are used, the temperature value will be invalid, with no
Error bit set.
For example, if we want to use FV from HART Slave 3 as temperature source, we have
to write the value 34 Hex (52 decimal).

(1)

1-19

Rosemount 5300/5400 Series

Manual Supplement

00809-0500-4530, Rev AA

October 2010

Modbus ASCII Communication Setup

Table 1-10. Modbus ASCII
Communication Parameters

Table 1-11. Parameters Used by
the Host (in case of Modbus ASCII,
example)

The parameter, default, and configurable values are shown in Table 1-10
below.

Parameter Default value Configurable values

Baud Rate 9600 1200, 2400, 4800, 9600, 19200
Start Bit s One One
Data Bits Seven Seven, Eight
Parity None None, Odd, even
Stop Bits One One or Two
Address 1 1-255

To reset the communication parameters to default Modbus ASCII settings,
use the following Modbus Message:

HMC M1

Modbus ASCII Parameter Configuration Example

You want to use address 246 for the 5300/5400 transmitter and the h ost uses
the following parameters:

Parameter Value

Baud Rate 9600
Start Bits One
Data Bits Seven
Parity None
Stop Bits One

1-20

To configure the 5300/5400 transmitter to communicate with the Host in this
example, the following text string is written to the Modbus Message area.

HMC M1 A246 B9600 D7 PN S1.

NOTE

Include all the parameters when writing to the message area.

Note that an address must be unique on the bus.

HMC: These three letters are used for safety and will eliminate the risk of
changing the configuration data by mistake.

M1: This means that the Modbus ASCII protocol is to be used.
A246: A indicates that the following number is the new address (address

246). Leading zeroes are not needed.
B9600: B indicates that the following number is the new baud rate (1200,

2400, 4800, 9600, 19200).

Manual Supplement

00809-0500-4530, Rev AA
October 2010

Rosemount 5300/5400 Series

D7: D indicates that the following data bits are to be used (7 = seven,
8 = eight).

PN: P identifies the following letter as parity type (O = odd, E = even, and
N = none).

S1: S indicates that the following figure is the number of stop bits (1 = one,
2 = two).

Note: Start Bits are not configurable and cannot be set.

1-21

Rosemount 5300/5400 Series

Modbus Setup

ALARM HANDLING NOTE

If the Modbus communication setup has been changed, but the transmitter
has not yet started to use the new configuration, then yo u need to disconnect
the HART modem and wait up to 60 seconds for the change to take effect.

In case the MA/MB terminals are used for connection to the HMC, disconnect
the RS-485 Converter, cycle power to the transmitter and wait up to 60
seconds for the change to take effect.

The Modbus communication settings will otherwise be lost if you write a new
message to the transmitter.

The output from the Modbus transmitter in case of an error (such as a field
device malfunction) can be configured. The values for Modbus registers
corresponding to PV, SV , TV, and QV will be changed accordingly (applicable
registers in area 1300, 2000, 2100, and 2200).

The default alarm output value for each protocol is defined on the next page.
Configuring alarm output value is optional.

Manual Supplement

00809-0500-4530, Rev AA

October 2010

Use the Modbus string to configure the alarm output. To enter a Modbus string
in RRM, do the following (Modbus RTU shown):

1. Start RRM and connect to the transmitter.

2. In RRM, select Setup>General.

1-22

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October 2010

Rosemount 5300/5400 Series

3. Select the Communication tab.

4. Click the Modbus Setup button.

5. Enter the Modbus string, and click OK.
See below for available Alarm Output Modbus strings.

Modbus RTU

String Alarm Output

HMC EN Not a number (NaN), default
HMC EF Freeze, hold last value
HMC EU U-0.1 User defined value, -0.1 in this example

Levelmaster

String Alarm Output

HMC M2 EH High value, 999.99, default
HMC M2 EL Low value, -99.99
HMC M2 EF Freeze, hold last value
HMC M2 EU U0 User defined value (range -99.99 to 999.99),

0 in this example

Modbus ASCII

String Alarm Output

HMC M1 EN Not a number (NaN), default
HMC M1 EF Freeze, hold last value
HMC M1 EU U-0.1 User defined value (range -99.99 to 999.99),

-0.1 in this example

NOTE

After changing the Alarm Output configuration, disconnect the HART modem
and wait up to 60 seconds for the change to take effect.

In case the MA/MB terminals are used for connection to the HMC, disconnect
the RS-485 Converter, cycle power to the transmitter, and wait up to 60
seconds for the change to take effect.

1-23

Manual Supplement

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Rosemount 5300/5400 Series

Verify Alarm Output To verify the Alarm Output, use RRM to simulate a device failure:

1. Establish HART communication with the transmitter through RRM.

2. Select Simulation Mode in the Tools menu.

3. Click Enable Device Failure Alarm (simulated).

4. Click the Start button.

5. Disconnect HART modem.

6. Verify that the con figured alarm output is available in the Modbus host.

7. Use RRM to turn off simulation mode.

October 2010

Use status information to evaluate measurement validity

Use Heartbeat to detect errors

The transmitter updates status information about the current measurement,
and this status information is available as a bitfield register through Modbus
communication.

By monitoring the status information it is possible to determine if the current
measurement output value is valid. See “Common Modbus Host
Configuration” on page 1-25 for details about the individual status bits.

By reading and evaluating the Heartbeat value from the device, it is possible
to verify that the communication link between the transmitter, HMC, RTU and
even the control system communicating with the RTU is working.

Assign Heartbeat to one of the transmitter variables (SV, TV, or QV).
Heartbeat is increased by one for each measurement cycle in the device (until
it eventually starts over at zero again).

In case this value is not updated, it means that the communication link is
broken.

1-24

Manual Supplement

00809-0500-4530, Rev AA
October 2010

Rosemount 5300/5400 Series

COMMON MODBUS HOST CONFIGURATION

Table 1-12. Byte Transmission
Order is specified by the Floating
Point Format Code

When using Modbus RTU or Modbus ASCII, the registers to receive status
and variables must be configured in the host system.

The transmission of single-precision (4 bytes) IEEE 754 floating point
numbers can be rearranged in different byte orders specified by the Floating
Point Format Code. The format code information, stated for each Remote
Terminal Unit (RTU) respectively, specifies which registers to poll from the
5300/5400 transmitter in order for the R TU to correctly interpret floating point
numbers. The byte transmission order for each format code is demonstrated
in Table 1-12 below.

Format

Code

0 [AB] [CD] Straight word order, most significant byte first
1 [CD] [AB] Inverse word order, most significant byte first
2 [DC] [BA] Inverse word order, least significant byte first
3 [BA] [DC] Straight word order, least significant byte first

Byte transmission

order

Description

NOTE

Some Modbus hosts cannot read the information described here using Input
Registers (Modbus function code 4). The Input Register information can also
be read using Holding Register (Function code 3). In this case, Input Register
number + 5000 is used as Holding Register number.

Between host system and device, it is recommended to use 60 seconds or
less between polls, and three retries.

Input Registers The register area starting with 1300 can be config ured to ha ve an y of the four

format codes. The configuration is done by setting FloatingPointFormatCode
register (holding register 3000) to 0-3, as shown in Table 1-12 . This
configuration can be done with the Rosemount Radar Master program.

NOTE

Depending on the slave number the 5300/5400 transmitter is using, diff erent
registers must be used with the default slave number being 1. Slave number
is determined by the HART address.

1-25

Rosemount 5300/5400 Series

Table 1-13. Output Variables for the
Configurable Floating Point Format
(default code 1)

Register Name

Slave 1 Status
Conf

Slave 1 PV Conf 1302

Slave 1 SV Conf 1304

Slave 1 TV Conf 1306

Slave 1 FV Conf 1308

Slave 2 data 1310-1318 Same data as for Slave 1.
Slave 3 data 1320-1328 Same data as for Slave 1.
Slave 4 data 1330-1338 Same data as for Slave 1.
Slave 5 data 1340-1348 Same data as for Slave 1.

Register

Number

1300

Manual Supplement

00809-0500-4530, Rev AA

October 2010

Note

Bit information in bitfield.
Bit 0: Invalid Measurement Slave 1 PV.
Bit 1: Invalid Measurement Slave 1 Non PV.
Bit 2: Invalid Measurement Slave 1 Non PV.
Bit 3: Invalid Measurement Slave 1 Non PV.
Bit 14: HART bus busy (slave in burst or other
master present)
Bit 15: HTM Task not running (option not
available).
Note: Bit 1-3 is set when Invalid Measurement of
Slave 1 Non PV. i.e. all three bits are set
simultaneously.

Primary variable from slave 1 represented in
IEEE 754 format, using the byte order set in the
FloatingPointFormatCode register.

Secondary variable from slave 1 represented in
IEEE 754 format, using the byte order set in the
FloatingPointFormatCode register.

Tertiary variable from slave 1 represented in
IEEE 754 format, using the byte order set in the
FloatingPointFormatCode register.

Fourth variable from slave 1 represented in IEEE
754 format, using the byte order set in the
FloatingPointFormatCode register.

1-26

The Rosemount 5300/5400 register area starting with register 2000 is used
for hosts that require Floating Point Format Code 0 (see Table 1-14).

Floating Point Format Codes 2 and 3 use register areas 2100 and 2200,
respectively (see Table 1-15 and Table 1-16).

Manual Supplement

00809-0500-4530, Rev AA
October 2010

Table 1-14. Output Variables for
Floating Point Format Code 0

Rosemount 5300/5400 Series

Register Name Register Number Note

Bit information in bitfield:
Bit 0: Invalid Measurement Slave 1 PV.
Bit 1: Invalid Measurement Slave 1 SV.
Bit 2: Invalid Measurement Slave 1 TV.
Bit 3: Invalid Measurement Slave 1 FV.

Slave 1 Status 2000

Slave 1 PV 2002

Slave 1 SV 2004

Slave 1 TV 2006

Slave 1 FV (QV) 2008

Bit 14: HART bus busy (slave in burst or
other master present)
Bit 15: HTM Task not running (option not
available).
Note: Bit 1-3 is set when Invalid
Measurement of Slave 1 Non PV, i.e. all
three bits are set simultaneously.

Primary variable from slave 1
represented in IEEE 754 format, using
Floating Point Format Code 0.

Secondary variable from slave 1
represented in IEEE 754 format, using
Floating Point Format Code 0.

Tertiary variable from slave 1
represented in IEEE 754 format, using
Floating Point Format Code 0.

Fourth variable from slave 1 represented
in IEEE 754 format, using Floating Point
Format Code 0.

Table 1-15. Output Variables for
Floating Point Format Code 2

Register Name Register Number Note

Bit information in bitfield:
Bit 0: Invalid Measurement Slave 1 PV.
Bit 1: Invalid Measurement Slave 1 SV.
Bit 2: Invalid Measurement Slave 1 TV.
Bit 3: Invalid Measurement Slave 1 FV.

Slave 1 Status 2100

Slave 1 PV 2102

Bit 14: HART bus busy (slave in burst or
other master present)
Bit 15: HTM Task not running (option not
available).
Note: Bit 1-3 is set when Invalid
Measurement of Slave 1 Non PV, i.e. all
three bits are set simultaneously.

Primary variable from slave 1
represented in IEEE 754 format, using
Floating Point Format Code 2.

1-27

Rosemount 5300/5400 Series

Register Name Register Number Note

Slave 1 SV 2104

Slave 1 TV 2106

Slave 1 FV (QV) 2108

Table 1-16. Output Variables for
Floating Point Format Code 3

Register Name Register Number Note

Slave 1 Status 2200

Slave 1 PV 2202

Slave 1 SV 2204

Slave 1 TV 2206

Slave 1 FV (QV) 2208

Manual Supplement

00809-0500-4530, Rev AA

October 2010

Secondary variable from slave 1
represented in IEEE 754 format, using
Floating Point Format Code 2.

Tertiary variable from slave 1
represented in IEEE 754 format, using
Floating Point Format Code 2.

Fourth variable from slave 1 represented
in IEEE 754 format, using Floating Point
Format Code 2.

Bit information in bitfield:
Bit 0: Invalid Measurement Slave 1 PV.
Bit 1: Invalid Measurement Slave 1 SV.
Bit 2: Invalid Measurement Slave 1 TV.
Bit 3: Invalid Measurement Slave 1 FV.
Bit 14: HART bus busy (slave in burst or
other master present)
Bit 15: HTM Task not running (option not
available).
Note: Bit 1-3 is set when Invalid
Measurement of Slave 1 Non PV, i.e. all
three bits are set simultaneously.

Primary variable from slave 1
represented in IEEE 754 format, using
Floating Point Format Code 3.

Secondary variable from slave 1
represented in IEEE 754 format, using
Floating Point Format Code 3.

Tertiary variable from slave 1
represented in IEEE 754 format, using
Floating Point Format Code 3.

Fourth variable from slave 1 represented
in IEEE 754 format, using Floating Point
Format Code 3.

1-28

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October 2010

Table 1-17. Measurement units and
corresponding input registers

Table 1-18. Conversion of Unit
Code to Measurement Unit

Rosemount 5300/5400 Series

Measurement Units

Measurement units for the various HART slaves are stored in input registers
as a Unit Code presented in Table 1-17. Conversion from Unit Code to
measurement unit is given in Table 1-18 on page 1-29.

Register Name Register Number Note

Slave 1 PV Units 104
Slave 1 SV Units 108
Slave 1 TV Units 112
Slave 1 FV (QV) Units 116

Unit Code Measurement Unit Unit Code Measurement Unit

Volume Length

40 US Gallon 44 Feet
41 Liters 45 Meters
42 Imperial Gallons 47 Inches
43 Cubic Meters 48 Centimeters
46 Barrels 49 Millimeters
111 Cub ic Yards Temperature
112 Cubic Feet 33 Degree Fahrenheit
113 Cubic Inches 32 D egree Celsius

See Table 1-18 for conversion from Unit
Code to Measurement Unit.

1-29

Rosemount 5300/5400 Series

Manual Supplement

00809-0500-4530, Rev AA

October 2010

SPECIFIC MODBUS HOST CONFIGURATION

The Remote Terminal Unit needs to be configured to communicate and
correctly interpret data when reading input registers from the Rosemount
5300/5400 transmitter.

Baud Rate

The specified Baud Rates below are recommendations. If other Baud Rates
are used, make sure that the 5300/5400 and the RTU are configured for the
same communication speed.

Floating Point Format Code

See Section “Common Modbus Host Configuration” on page 1-25.

RTU Data Type

The RTU Data Type specifies which configuration to use in the RTU in order
for the RTU to correctly interpret a floating point number transmitted from the
5300/5400 transmitter with Modbus.

Input Register Base Number

Data registers in the 5300/5400 transmitter with Modbus are num bered
exactly as they are transmitted in the Modbus communication. Some RTUs
use different naming conventions and to configure the RTU to poll the correct
registers from the 5300/5400 Modbus, an Input Register Base Number is
stated for each RTU respectively. E.g. if the input register base number is 1
for the RTU, the 5300/5400 Modbus input register 1302 has to be ente red in
the RTU address as input register 1303.

Emerson Process Management ROC800 Series

Figure 1-9. Wiring Diagram for
Connecting 5300/5400 Modbus to
Emerson Process Management
ROC800 Series

Table 1-19. Parameter Values (in
case of Emerson Process
Management ROC800 Series)

Baud Rate 9600
Floating Point Format Code 0
RTU Data Type Conversion Code 66
Input Register Base Number 0

The Input Register Base Number needs to be added to the Input Register
address of the 5300/5400 transmitter. In this case, register 1300 needs to
have 1300 entered as the address.

Parameter Value

1-30

Manual Supplement

00809-0500-4530, Rev AA
October 2010

Emerson Process Management FloBoss 107

Figure 1-10. Wiring Diagram for
Connecting 5300/5400 Modbus to
Emerson Process Management
FloBoss 107

Table 1-20. Parameter Values (in
case of Emerson Process
Management FloBoss 107)

5300/5400 Modbus

Baud Rate 9600
Floating Point Format Code 0
RTU Data Type Conversion Code 66
Input Register Base Number 0

POWER +
POWER -

Power Supply

+ 8 to + 30 Vdc

(max. rating)

Parameter Value

MA
MB

GND

Rosemount 5300/5400 Series

FloBoss 107

RS-485
A

B
NC

NC
PWR
GND

ABB TotalFlow

Figure 1-11. Wiring diagram for
connecting 5300/5400 Modbus to
ABB TotalFlow

Table 1-21. Parameter Values (in
case of ABB TotalFlow)

The Input Register Base Number needs to be added to the Input Register
address of the 5300/5400 transmitter. In this case, register 1300 needs to
have 1300 entered as the address.

Parameter Value

Baud Rate 9600
Floating Point Format Code 0
RTU Data Type 16 Bit Modicon
Input Register Base Number 1

The Input Register Base Number needs to be added to the Input Register
address of the 5300/5400 transmitter. In this case, register 1302 needs to
have 1303 entered as the address etc.

1-31

Rosemount 5300/5400 Series

Com Port 3 (C3) RS-485

1
2
3
4
5

TXD­TXD+
GND

6
7
8
9

MA
MB
POWER +
POWER -

ControlWave Micro

5300/5400 Modbus

Power Supply

+ 8 to + 30 Vdc

(max. rating)

GND

DB9 Male

Thermo Electron Autopilot

Figure 1-12. Wiring Diagram for
Connecting 5300/5400 Modbus to
Thermo Electron Autopilot

Table 1-22. Parameter Values (in
case of Thermo Electron Autopilot)

5300/5400 Modbus

MA
MB
POWER +
POWER -

Power Supply

+ 8 to + 30 Vdc

(max. rating)

GND

Parameter Value

Baud Rate 9600
Floating Point Format Code 1
RTU Data Type IEEE Flt 2R
Input Register Base Number 0

Manual Supplement

00809-0500-4530, Rev AA

October 2010

AutoPILOT

CEB TB1
1 RX +

2 RX -

Bristol ControlWave Micro

Figure 1-13. Wiring Diagram for
Connecting 5300/5400 Modbus to
Bristol ControlWave Micro

Table 1-23. Parameter Values (in
case of Bristol ControlWave Micro)

1-32

The Input Register Base Number needs to be added to the Input Register
address of the 5300/5400 transmitter. In this case, register 1302 needs to
have 1302 entered as the address etc.

Parameter Value

Baud Rate 9600
Floating Point Format Code 2 (FC 4)
RTU Data Type 32-bit registers as 2 16-bit registers
Input Register Base Number 1

The Input Register Base Number needs to be added to the Input Register
address of the 5300/5400 transmitter. In this case, register 1302 needs to
have 1303 entered as the address etc.

Manual Supplement

RS-485 on COM1
1 +5 V

2 RX­3 TX­4 GND
5 RX+
6 TX+
7 Not Used
8 Not Used

SCADAPack32

MA
MB
POWER +
POWER -

5300/5400 Modbus

Power Supply

+ 8 to + 30 Vdc

(max. rating)

REF

00809-0500-4530, Rev AA
October 2010

ScadaPack

Figure 1-14. Wiring Diagram for
Connecting 5300/5400 Modbus to
SCADAPack 32

Table 1-24. Parameter Values (in
case of SCADAPack 32)

Rosemount 5300/5400 Series

Parameter Value

Baud Rate 9600
Floating Point Format Code 0
RTU Data Type Floating Point
Input Register Base Number 30001

Kimray DACC 2000/3000 This table shows input types in Kimray IMI software and the corresponding

T able 1-25. Kimray Input T ypes and
Corresponding Values

The Input Register Base Number needs to be added to the Input Register
address of the 5300/5400 transmitter. In this case, register 1302 needs to
have 31303 entered as the address etc.

value. The communication port must be configured to use “Tank Levels”
protocol.

Kimray Inp type 5300/5400 variable Format

Tank Level1 PV ddd.d d.alt. -dd.dd
Tank Level2 SV ddd.d d.alt -dd.dd

1-33

Rosemount 5300/5400 Series

TROUBLESHOOTING No communication on RS-485 bus (MA, MB)

• Check that the cables are connected

• Check that PWR+ is connected to + and PWR- is connected to - on the
power supply

• Make sure the 5300/5400 transmitter is supplied with 8-30 Vdc
(max. rating)

• Try alternating MA/MB if you are unsure of the polarity

• If an RS-485 converter is used, make sure it is properly installed and
configured

• The last 5300/5400 transmitter may need a terminating 120-resistor
connected between MA and MB

No 5300/5400 communication in RRM

• Using HART+, HART-

• HART modem is not properly connected

• Polling address is incorrect in RRM (default 1)

• Using MA, MB

• See No communication on RS-485 bus

• Polling address is incorrect in RRM (default 1)

• Cycle the power and wait 20 seconds before polling

Manual Supplement

00809-0500-4530, Rev AA

October 2010

No communication with Modbus RTU protocol

•See No communication on RS-485 bus

• Make sure the “Modbus Communication Protocol Configuration” is
done properly

• Make sure the Modbus RTU address is unique on the bus

• Cycle the power and try to connect

• Check the RTU communication settings

No communication with Modbus ASCII protocol

•See No communication on RS-485 bus

• Make sure the “Modbus Communication Protocol Configuration” is
done properly

• Make sure the Modbus ASCII address is unique on the bus

• Cycle the power, waiting 40 seconds before communication begins

• Check the RTU communication settings

No communication with Levelmaster protocol

•See No communication on RS-485 bus

• Make sure the “Modbus Communication Protocol Configuration” is
done properly

• Make sure the Levelmaster address is unique on the bus

• Cycle the power, waiting 40 seconds before communication begins

• Check the RTU communication settings

1-34

Manual Supplement

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October 2010

Rosemount 5300/5400 Series

HMC FIRMWARE UPGRADE IN ROSEMOUNT RADAR MASTER

The HMC’s firmware is upgraded using Rosemount Radar Master (RRM). A
detailed description on how to carry out the firmware upgrade is shown on the
following pages.

NOTE

All settings in the HMC will be lost after upgrading the transmitter.
Reconfiguration of Modbus communication setup and alarm handling is
required after completing the upgrade.

NOTE

During firmware upgrade, the HMC Modbus RTU address must be 246, the
default address. Make sure to disconnect other Modbus R TU devices th at are
connected and have address 246.

NOTE

Do not interrupt communication between the PC and the 5300/5400 level
transmitter during the firmware upload.

1. Start RRM and select Communication Preferences in the View menu.

2. Navigate to the Modbus tab and use the following settings:

• Modem: RS-485

• Baudrate: According to configuration in HMC (default 9600)

• Stop Bits: According to configuration in HMC (default 1)

• Parity: According to configuration in HMC (default None)

• Handshake: RTS/CTS

• Response Timeout: 1000 ms

•Retries: 3

3. Select Enable Modbus Communication and click OK.

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Rosemount 5300/5400 Series

4. If the HMC is configured for Modbus ASCII or Levelmaster
communication cycle the power to the transmitter (the HMC will then
communicate using Modbus RTU for 20 seconds and under that time it is
possible to connect with RRM).

5. Open the Search Device window and make sure Modbus is selected in
the Protocol list.

Manual Supplement

00809-0500-4530, Rev AA

October 2010

6. Search for HMCs by selecting “Scan Address Range”, and choose a
start and end address for Modbus. The default HMC Modbus address is

246.

7. Click the Start Scan button.

8. Click OK to connect when the device is found.

9. From the Service menu, choose the Enter Service Mode option.

10. Type password, “admin”.

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11. From the Service menu, choose the Upload Firmware option.

12. Click Browse.

13. Select the upgrade “.cry” file.

14. Click Open.

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Rosemount 5300/5400 Series

Checksum

15. Click the Upload button to start the firmware upgrade.

16. When upload is finished, select Diagnostics in the Tools menu.

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October 2010

1-38

17. Click Device Errors and check for “Checksum”.

18. If it is on the list, choose the Factory Settings option from the Tools
menu.

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October 2010

Rosemount 5300/5400 Series

19. Select All and click OK.

20. Select “Yes”.

NOTE

An error message might be displayed when performing the Reset to Factory
Settings operation. The operation has been successful if the checksum error
has been cleared.

21. Select Restart in the Tools menu to restart the HMC.

22. The checksum error should no longer be present (select Diagnostics in
the Tools menu to verify, see Step 16). If it still persists, follow the next
steps.

23. Select View Holding Registers in the Service menu and write th e value
16760 to register 65510.

24. Restart the HMC.

25. If the HMC is configured for Modbus ASCII or Levelmaster
communication after upload has been completed, proceed with the
following:

1. Close RRM and disconnect the RS-485 converter from the HMC.

2. Cycle the power to the HMC to have it exit Modbus RTU
communication mode.

1-39

Rosemount 5300/5400 Series

SPECIFICATIONS

Table 1-26. Specifications

Power supply 8-30 Vdc (max. rating)
Power consumption

Signal wiring

Power supply cabling

Ground (common mode)
voltage limit

Bus termination Standard RS-485 bus termination per EIA-485

See the Rosemount 5300 Series Reference Manual (Document No.
00809-0100-4530), and the Rosemount 5400 Series Reference Manual
(Document No. 00809-0100-4026) for further specifications.

Manual Supplement

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October 2010

< 0.5 W (with HART address=1)
< 1.2 W (incl. four HART slaves)

Two-wire half duplex RS-485 Modbus. Use shielded
twisted pair wiring, preferably with an impedance of 120
(typically 24 AWG), in order to comply with EIA-485
standard and EMC regulations.

The power supply cables must be suitable for the supply
voltage and ambient temperature, and approved for use
in hazardous areas, where applicable.

± 7 V

1-40

Manual Supplement

00809-0500-4530, Rev AA
October 2010

Rosemount 5300/5400 Series

1-41

Rosemount 5300/5400 Series

Manual Supplement

00809-0500-4530, Rev AA

October 2010

The Emerson logo is a trademark and service mark of Emerson Electric Co.
Rosemount and the Rosemount logotype are registered trademarks of Rosemount Inc.
All other marks are the property of their respective owners.

Standard Terms and Conditions of Sale can be found at www.rosemount.com\terms_of_sale

© 2010 Rosemount Inc. All rights reserved.

Emerson Process Management
Rosemount Measurement

8200 Market Boulevard
Chanhassen MN 55317 USA
Tel (USA) 1 800 999 9307
Tel (International) [phone]
F [phone]

00809-0500-4530 Rev AA 10/10

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West Sussex PO22 9SH
England
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