Rosemount 5400 Operating 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

Power Supply

HART

HART -

120

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

termination

resistor

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

MODBUS

(RS-485)

1-5

Manual Supplement

MODBUS

POWER

HART

(RS-485)

HART to Modbus Converter

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

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

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

(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

1-6

Manual Supplement

MODBUS

POWER

HART

(RS-485)

HART to Modbus Converter

MODBUS

POWER

HART

(RS-485)

HART to Modbus Converter

Ambients > 60 ºC Use wiring rated for min 90 ºC

Power Supply

120

RS-485 Bus

BAModbus

Master

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

RS-485 Bus

BAModbus

Master

External Ground Screw

Internal Ground Screw

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

MODBUS

(RS-485)

POWER

Ambients > 60 ºC Use wiring rated for min 90 ºC

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

MODBUS

(RS-485)

POWER

Ambients > 60 ºC

HART

Use wiring rated for min 90 ºC

HART to Modbus Converter

MODBUS

(RS-485)

POWER

Ambients > 60 ºC

HART

Use wiring rated for min 90 ºC

HART to Modbus Converter

MODBUS

(RS-485)

MODBUS

(RS-485)

POWER

Ambients > 60 ºC

HART

Use wiring rated for min 90 ºC

HART to Modbus Converter

MODBUS

(RS-485)

POWER

Ambients > 60 ºC

HART

Use wiring rated for min 90 ºC

1-8

HART to Modbus Converter

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

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

+ 29 hidden pages