Rosemount™ 2410 Tank Hub
Whessoe emulation instruction
Manual Supplement
00809-0500-2410, Rev AB
January 2022
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Manual Supplement Contents
00809-0500-2410 January 2022
Contents
Chapter 1 Introduction.............................................................................................................. 5
1.1 Emulation capabilities..................................................................................................................6
1.2 Whessoe system characteristics...................................................................................................7
1.3 Rosemount 2410 Tank Hub communication................................................................................8
Chapter 2 Electrical installation................................................................................................13
2.1 Rosemount 2410 Tank Hub connections................................................................................... 13
Chapter 3 Configuration...........................................................................................................15
3.1 Set up Modbus communication protocol...................................................................................15
3.2 Install Rosemount 2410 Tank Hub in WinSetup......................................................................... 16
3.3 Configure specific variables for emulation................................................................................. 18
3.4 Verify Whessoe communication parameters............................................................................. 21
3.5 Configure field devices...............................................................................................................23
3.6 Start Whessoe emulation...........................................................................................................23
Chapter 4 Troubleshooting...................................................................................................... 25
4.1 Communication status.............................................................................................................. 25
4.2 Digital current loop modem.......................................................................................................26
Chapter 5 Optional configuration and settings......................................................................... 27
5.1 Engineering units.......................................................................................................................27
5.2 Miscellaneous control register................................................................................................... 27
5.3 Alarms....................................................................................................................................... 29
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Manual Supplement Introduction
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1 Introduction
The purpose of this document is to provide guidelines on how to change from other
manufacturer’s devices to Rosemount equipment by exchanging gauges. When a gauge is
replaced with a Rosemount gauge, it is necessary to configure the Rosemount 2410 Tank
Hub for emulation.
The Rosemount field devices, for example Rosemount 5900 Radar Level Gauge and
Rosemount 2240S Temperature Transmitter, are connected to the tank hub using the
intrinsically safe Tankbus as usual. Emulation is done in the tank hub only. Each tank hub
can emulate up to 10 tanks (10 separate gauges)
Figure 1-1: Rosemount Devices Replacing Old Gauges in an Existing Whessoe System
(1)
.
A. Existing Whessoe host
B. Existing data polling unit
C. Rosemount 2410 Tank Hub
D. Whessoe gauges
E. Rosemount 5900S Radar Level Gauge
F. Rosemount 2240S Temperature Transmitter with sensor
G. Rosemount 3051S Pressure Transmitter
(1) Tank hub version “Multiple tanks” can emulate up to 10 tanks (10 gauges). Tank hub version “Single tank” can emulate up
to 2 tanks (2 gauges).
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1.1 Emulation capabilities
Emulation enables the replacement of old devices with Rosemount devices in another
vendor’s existing tank gauging system. The Rosemount device will perform just like the
replaced gauge, using the other vendor’s protocol to communicate.
By using the other vendor’s field and control room communication protocol with modern
Rosemount tank gauging devices, the legacy system can be modernized step-by-step. The
legacy system can be upgraded while tanks are in operation and existing wiring can be reused.
The tank hub can emulate replaced devices, acting as either slave or master
hub slave emulation is described in this document.
Tank hub acting as slave
When an old gauge from another vendor is replaced with a tank hub connected to a
Rosemount field device, the tank hub will act as a slave answering requests and sending
data upwards towards the host.
A stepwise “bottom-up” upgrade is done by replacing legacy gauges to begin with, and
changing the complete control system at a later occasion.
(2)
. The tank
Figure 1-2: Tank Hub Slave Emulation
(2) Tank hub master emulation is supported for the Whessoe 550 protocol. For further information about Whessoe master
emulation contact your Emerson Automation Solutions/Rosemount Tank Gauging representative.
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1.2 Whessoe system characteristics
A typical Whessoe tank gauging system consists of a number of field devices such as level,
temperature, and pressure devices. The Rosemount 2410 Tank Hub supports the Whessoe
protocols WM550 and WM660. The electrical interface can be either digital current loop or
RS485, see Table 1-1.
Table 1-1: Whessoe Protocol Options
Protocol Electrical interface
WM550 Digital current loop (DCL)
WM660 Digital current loop (DCL)
RS485
Figure 1-3: Whessoe Connection: Digital Current Loop - Devices Connected in Series
A. Whessoe master
B. 0-20 mA
Figure 1-4: Whessoe Connection: RS485 - Devices Connected in Parallel
A. Whessoe master
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1.3 Rosemount 2410 Tank Hub communication
The tank hub has slots for two independent communication boards, primary and
secondary field bus, for TRL2 Modbus®, RS485 Modbus, emulation, or wireless
communication.
Support for Whessoe emulation is selected in the model code, refer to Rosemount 2410
Product Data Sheet for more information. There are three alternatives available for
Whessoe emulation:
• Example 1: RS485 Modbus on primary bus
RS485 is available on the primary bus, preferably combined with TRL2 on the
secondary bus.
• Example 2: Digital current loop on Secondary Fieldbus
Whessoe (digital current loop) is available on the secondary bus, where the primary bus
can be used for regular TRL2 or RS485 communication.
• Example 3: Wireless communication in combination with Whessoe emulation
RS485 or Whessoe (digital current loop) is available on the primary bus, where the
secondary bus is used for WirelessHART® for normal communication.
Example 1: RS485 Modbus on primary bus
When the RS485 protocol is used for Whessoe emulation, the primary field bus is
connected to the Whessoe host. The secondary field bus can be used to configure the tank
hub for emulation, using a TRL2 modem like the Rosemount 2180 Field Bus Modem (FBM),
see Figure 1-5.
Figure 1-5: Emulation on Primary Bus and Configuration on Secondary Bus
A. Primary bus: RS485 Modbus
B. Secondary bus: TRL2 Modbus
C. RS485 converter
D. Whessoe host
E. FBM
F. Rosemount TankMaster™ PC
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It is possible to use the RS485 protocol for both emulation and configuration
(3)
. In that
case, the primary bus is first used for configuration and thereafter switched to the
Whessoe host in order to start emulation, as shown in Figure 1-6.
Figure 1-6: Emulation and Configuration on Primary Bus
A. Primary bus: RS485 Modbus
B. RS485 converter
C. Rosemount TankMaster™ PC
D. Whessoe host
(3) When using the RS485 protocol for configuring, different communication parameters must be used. See Table 3-1.
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Example 2: Digital current loop on Secondary Fieldbus
The digital current loop interface is connected to the Rosemount 2410 secondary field
bus.
Configuration is usually performed with a FBM connected to the primary bus. The primary
bus can be used for regular TRL2 or RS485 Modbus communication.
Figure 1-7: Configuration on Primary Bus and Emulation on Secondary Bus
A. Primary bus: TRL2 Modbus
B. Secondary bus: Digital current loop
C. FBM
D. Rosemount TankMaster™ PC
E. DCL modem
F. Whessoe host
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Example 3: Wireless communication in combination with Whessoe emulation
The tank hub supports Emerson’s wireless technology, which is based on WirelessHART,
the emerging industry standard for wireless field networks. The Emerson Wireless THUM
Adapter acts as a wireless data link between the tank hub and an Emerson Wireless
Gateway.
The tank hub can simultaneously combine wireless and Whessoe communication. The
primary field bus communicates via digital current loop or RS485 Modbus, and the
secondary field bus via WirelessHART. With this tank hub communication configuration,
control room redundancy is achieved.
Figure 1-8: Emulation on Primary Fieldbus and Wireless Communication on
Secondary Field Bus
™
A. Primary bus: Digital current loop or RS485 Modbus
B. Secondary bus: WirelessHART
C. DCL modem or RS485 converter
D. Whessoe host
E. Emerson Wireless THUM Adapter
F. Emerson Wireless Gateway
G. Rosemount TankMaster PC
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Manual Supplement Electrical installation
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2 Electrical installation
2.1 Rosemount 2410 Tank Hub connections
Figure 2-1: Terminal Block in the Explosion-Proof/Flameproof Compartment
A. Primary field bus
B. Secondary field bus
Table 2-1: Terminal Assignment for Non-Intrinsically Safe Side
Terminal Designation Function
1 N/- Power, Neutral / DC -
2 L/+ Power, Line / DC +
3 K1 A Relay 1 output (optional). Hardware configurable NO/NC.
4 K1 com Relay 1 common
5 K2 A Relay 2 output (optional). Hardware configurable NO/NC.
6 K2 com Relay 2 common
(1)
7a/7b
(1)
8a/8b
9 S Pwr - Secondary bus power - (N/A)
10 S Pwr + Secondary bus power + (N/A)
(1)
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P Bus B Primary communication bus RS485 B
Primary communication bus DCL –
P Bus A Primary communication bus RS485 A
Primary communication bus DCL +
S Bus B Secondary communication bus DCL -
S Bus A Secondary communication bus DCL +
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Table 2-1: Terminal Assignment for Non-Intrinsically Safe Side (continued)
Terminal Designation Function
PE PE Power supply protective ground
GND_1 GND_1 Housing chassis/shield Primary bus
GND_2 GND_2 Housing chassis/shield Secondary bus
(1) Refer to Electrical drawings for additional information.
Electrical drawings
• RS485: Electrical Installation Drawing (D9240041-952)
• Digital current loop/Wireless: Electrical Installation Drawing (D7000006-457)
• Digital current loop on secondary bus: Electrical Installation Drawing (D7000002-526)
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Manual Supplement Configuration
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3 Configuration
The Rosemount 2410 Tank Hub is configured by using the TankMaster WinSetup
configuration program
configuration options as well as advanced configuration and service functions.
Configuration of the Rosemount 2410 emulation function can be performed with the
WinSetup program using the FBM or a RS485 converter, depending on the tank hub
configuration. A tank hub where the secondary field bus communicates via
WirelessHART®, can be configured by wireless communication with an Emerson Wireless
Gateway.
(4)
. WinSetup is a user-friendly software package that includes basic
3.1 Set up Modbus communication protocol
This section describes how to configure the Modbus Master protocol channel for
communication. To specify PC communication port and the standard communication
parameters, do the following:
Procedure
1. Open the Protocols folder in the TankMaster WinSetup workspace window.
2. Select the Modbus Master icon.
3. Right click the proper MBMaster icon and select Properties to configure the
protocol channel.
4. Select the Communication tab.
(4) See the Rosemount Tank Gauging System Configuration Manual for more information on how to use the TankMaster
WinSetup software to configure the Rosemount 2410 Tank Hub.
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5. Set the communication parameters:
Table 3-1: Communication Parameters
FBM RS485 converter
Port The COM port the FBM is
connected to
Baud rate 4800 9600
Stop bits 1 1
Parity None None
Modem FBM 2180 RS-485
Handshaking None RTS/CTS
Reply timeout 1000 ms 1000 ms
Retries 3 3
Description Text describing the configured
channel
The COM port the converter is
connected to
Text describing the configured
channel
6. Select the Enable Channel check box to activate the protocol channel.
7. Select OK to store the current configuration and close the configuration window.
3.2 Install Rosemount 2410 Tank Hub in WinSetup
The TankMaster WinSetup wizard is the recommended tool for installing the tank hub. The
installation wizard manages basic configuration of the tank hub.
Perform the following steps to start the installation wizard in TankMaster WinSetup:
Procedure
1. In the TankMaster WinSetup workspace window select the Devices folder.
2. Right click and select Install New or, from the Service menu, select the Devices/
Install New option. The Select Device window opens.
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3. From the Device Type drop-down list, select the 2410 Tank Hub option.
4. Type a name in the 2410 HUB Tag field. The 2410 Hub Tag will be used as an
identifier for the tank hub in various windows and dialogs.
5. Select Next. The 2410 Tank Hub Communication window opens.
6. Ensure TankMaster communicates directly with the tank hub and that the proper
communication channel is chosen.
7. Default Modbus Address is 247 for the tank hub. It is recommended to change it to
an address between 101-199. To change the adress, do the following:
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a) In the 2410 Tank Hub Communication window select Change Address on
Device... to open the Change Address window.
b) Enter the Unit ID and select the new Modbus Address. When changing the
device address, the Unit ID is used as a unique identifier of the device. The
Unit ID can be found on a label mounted on the device.
c) Select OK to confirm the address settings and close the Change Address
window.
d) In the 2410 Tank Hub Communication window select Verify Communication
to check that communication is established between the TankMaster work
station and the tank hub. The Unit ID will appear when TankMaster detects
the tank hub.
8. In the 2410 Tank Hub Communication window select Next to continue the
installation procedure of the tank hub.
9. Continue configuration of the tank hub following the standard installation
procedure.
3.3 Configure specific variables for emulation
The tank hub holding registers are used to configure the Whessoe emulation variables.
Procedure
1. In the TankMaster WinSetup workspace window, right click the tank hub device icon.
2. To view the holding registers, select the View Holding Registers option.
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3. Enable Whessoe emulation by selecting the Whessoe protocol in holding register
700 (RS485) or holding register 750 (digital current loop).
a) Double-click the grey colored Value field.
b) From the drop-down menu select Whessoe and then select the OK button.
The value 6 will appear in the Value field when the Whessoe protocol is
selected.
Note
When replacing a Whessoe gauge with a Rosemount device, the Rosemount device
must have the same Whessoe address as the gauge being replaced.
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4. Enter the required emulation address in holding registers 900-909. Valid Whessoe
addresses are 0-31 for WM550, and 0-255 for WM660.
(5)
Enter required emulation address in the Value field.
Tip
In the Tank Database tab, set the Modbus address to the same as the chosen
Whessoe address for each device.
(5) Emulation address is by default set to “65535” for tank positions that are not in use.
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5. Select Whessoe protocol in holding register 1040.
a) Double-click the grey colored Value field.
b) From the drop-down menu select desired Whessoe protocol, and select the
OK button.
Related information
Optional configuration and settings
3.4 Verify Whessoe communication parameters
Once Whessoe emulation is selected (see Step 3), the Whessoe emulation communication
parameters is automatically configured to default values:
Baud rate
Data bits
Parity
Start bit
Stop bit
2400
8
Even
1
1
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Procedure
To change the communication parameters (optional), do the following:
a) In the Workspace window, right click the Rosemount 2410 icon and select
Properties. Select the Configuration tab, and continue by selecting the Primary
Bus button or the Secondary Bus button, depending on your model code options.
b) From the Configuration drop-down list select Non Standard.
c) From the Protocol drop-down list select protocol WM550 or WM660.
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d) Specify the communication parameters according to the Whessoe tank gauging
system characteristics.
3.5 Configure field devices
When the tank hub configuration is completed, the Rosemount field devices, for example
Rosemount 5900 Radar Level Gauge or Rosemount 2240S Multi-input Temperature
Transmitter, must be configured as well. The field devices are configured as usual, for
further information see the Rosemount Tank Gauging System Configuration Manual.
Procedure
1. Configure the field devices by using the Properties window of each device.
2. Verify that level and temperature values are valid.
3.6 Start Whessoe emulation
3.6.1 Tank hub with primary and secondary field bus
Procedure
1. If not already connected, connect the tank hub to the Whessoe host.
2. The tank hub will now act like a Whessoe gauge.
3.6.2
Tank hub with primary field bus
Procedure
1. When the tank hub configuration is completed, disconnect TankMaster.
2. Connect the tank hub to the Whessoe host.
3. The tank hub will now act like a Whessoe gauge.
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4 Troubleshooting
4.1 Communication status
Table 4-1: Troubleshooting Chart
Problem Cause
No communication with
Rosemount 2410 using TRL2
bus.
No response from Rosemount
2410 using the Whessoe bus.
No relay status is available in
the host.
Pressure is indicated to be
invalid.
1. Incorrect Modbus address.
2. Incorrect communication parameter settings. Check LCD
Display during startup, for used settings.
1. Whessoe address is not the same as configured in
Rosemount 2410, emulation address.
2. Bad cabling.
3. Whessoe bus baud rate is not the same as configured in
Rosemount 2410.
4. Whessoe bus stop bit configuration is not the same as
configured in Rosemount 2410.
5. Incorrect Whessoe protocol selected in Rosemount 2410.
6. Whessoe emulation is not enabled.
7. Incorrect modem is installed in the Rosemount 2410.
8. Rosemount 2410 software is older than 1.B2.
1. The AlarmStatus register is not correctly configured
(holding register 1042).
2. Relay K1 or K2 are not correctly configured in Rosemount
2410.
1. The pressure source is not correctly configured. Check the
pressure value on the LCD Display or in the Standard Input
registers for TMV Pressure.
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Check message status
Verify that communication is working properly by checking the input registers as
described in Table 4-2. See Table 4-3 for troubleshooting actions.
Table 4-2: Messages Input Registers
Register number
Primary bus Secondary bus
1206 1256 RecMessages Total queries received
1208 1258 MessagesToMe Number of received queries addressed
1210 1260 SentMessages Number of sent messages
Input register Description
to me
Table 4-3: Messages Troubleshooting Chart
Symptom Action
Input register RecMessages does not
enumerate
Input register MessagesToMe does
not enumerate
Input register SentMessages does not
enumerate
Check that:
• the tank hub is powered.
• cables are properly connected.
• the tank hub is in Whessoe mode.
• the tank hub is configured for Whessoe emulation.
Check that the Whessoe address is correct.
Check that the host is sending proper requests
4.2 Digital current loop modem
Check LEDs
If the tank hub is mounted in a safe zone, it is possible to use the LEDs on the DCL modem
for trouble shooting. Dismount the front cover to discover the red and green LEDs:
• Red LED: Always on, flashing when the Rosemount 2410 is transmitting.
• Green LED: On when there is 20 mA in the loop.
Note
The tank hub front cover must only be dismounted in a safe zone.
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Manual Supplement Optional configuration and settings
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5 Optional configuration and settings
5.1 Engineering units
Level and temperature units
Engineering units are not separately configured for Whessoe emulation:
• Length unit is mm despite the tank hub unit configuration.
• Average temperature unit is Celsius despite the tank hub unit configuration.
Level in percentage
The Whessoe protocol supports level in percent of range. The value is automatically
calculated for the applicable tank. No special configuration of the Rosemount 2410 is
required.
5.2 Miscellaneous control register
Holding register 1041 (MiscControl) is used to set some optional configuration bits, refer
to Table 5-1.
Table 5-1: Holding Register WhessoeMiscControl (1041) Bits
Bit Name Default
value
5 Liquid pressure 0x0 Whessoe Task 30
6 High resolution pressure 0x0 The Whessoe Task 30
7 Task 32 for 2410 0x0 By setting bit 7, the Rosemount 2410
(1) Type of request for the Whessoe protocol.
Definition
normal pressure is vapor (gas) pressure. By
setting bit 5, the pressure is changed to
liquid pressure.
pressure value (0-255). Five bits are unused
in the response. By setting bit 6, the five bits
are activated and included in the pressure
value. The high resolution pressure value will
then include 13-bits (0-8191). Note that this
is not Whessoe standard.
software date is used in the Whessoe Task
(1)
32
response.
(1)
includes pressure. The
(1)
supports a 8-bit
To set optional configuration bits using holding register 1041 (MiscControl), do the
following:
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Procedure
1. Double-click the grey colored Value field.
2. In the Expanded Bitfield - 1041 window, double-click the Value field to enable/disable
each option.
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5.3 Alarms
5.3.1 Alarm limit configuration
The level alarm limits are configured in the holding register block TMVAlarmAlarmLevelLimit 2400-2478.
5.3.2 Alarm configuration
WM550
There are four alarm bits available in the WM550 protocol Task 04 response:
• Alarm 1: Relay K1
• Alarm 2: Level high alarm
• Alarm 3: Level low alarm
• Alarm 4: Relay K2
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Use holding register 1042 to individually enable/disable the WM550 alarm bits:
WM660
The Modbus read request receives the status of the alarms from the tank hub registers:
• Alarm 1: Level HH Alarm
• Alarm 2: Level High Alarm
• Alarm 3: Level Low Alarm
• Alarm 4: Level LL Alarm
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For more information:
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2022 Emerson. All rights reserved.
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Emerson Terms and Conditions of Sale are available upon
request. The Emerson logo is a trademark and service mark of
Emerson Electric Co. Rosemount is a mark of one of the
Emerson family of companies. All other marks are the property
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