Dwyer Instruments IEF Series Manuale utente

Series IEF Insertion Electromagnetic Flow Transmitter

BACnet / Modbus® - Operating Instruction

Bulletin F-IEF-PT

Modbus®is a registered trademark of Schneider Automation, Inc.

Network Termination Jumper

On the terminal block PCBA there is a jumper, J1 (see gure UUUU), that enables or

disables a network termination resistor as dened below:

When the network jumper is placed in the ON position there is a 120 ohm termination

resistor in place. When the network jumper is placed in the OFF position there is no

termination resistor in place.

Default: OFF

NETWORK TERMINATION JUMPER

®

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.

Phone: 219/879-8000

Fax: 219/872-9057

www.dwyer-inst.com

e-mail: [email protected]

BACnet Objects:

Device Object

The default object identier is 607xxx, where xxx is replaced by the MS/TP MAC

address set in the Network Address menu. The object identier value will change as

the MS/TP MAC address changes. However, if a specic object identier is written

via BACnet, then that value is stored and changes to the MS/TP MAC address will no

longer affect the object identier.

Similarly, the default object name includes 607xxx. The object name will reect the

current object identier. If a specic object name is written via BACnet, then that value

is stored and changes to the object identier will no longer affect the object name.

APDU Timeout values are rounded to the nearest second (1000ms). Values less than

500 will be rounded to 0 and Number of APDU Retries will be set to 0.

Property Default Value Property Data Type Access

Object Identier

Object Name

ObjectType

System Status

Vendor Name

Vendor Identier

Model Name

Firmware Revision

Application Software Version

Location

Description

Protocol Version

Protocol Revision

Protocol Services Supported

Protocol Object Types Supported

Object List

Active COV Subscriptions

Maximum APDU Length Accepted

APDU Timeout

Number of APDU Retries

Max Master

Max Info Frames

Device Address Binding

Database Revision

Property List

Serial Number

607xxx

“Series IEF 607xxx”

DEVICE(8)

Operational(0)

“Dwyer Instruments, Inc.”

607

“IEF-HN-10-COM”

“x.x.x”

“x.x”

1

14

See BACnet Services below

See Table Above

480

NO_SEGMENTATION (3)

6000

3

127

1

Empty

1

“xxxxxxxx”

BACnetObjectIdentier

CharacterString(40)

BACnetObjectType

BACnetDeviceStatus

CharacterString

Unsigned

CharacterString

CharacterString(32)

Unsigned

BACnetServicesSupported

BACnetObjectTypesSupported

BACnetArray

List of BACnetCOVSubscription

Unsigned

BACnetSegmentation

Unsigned

BACnetAddressBinding Unsigned

BACnetARRAY[N] of

BACnetPropertyIdentier

CharacterString

Read/Write

Read

Read/Write

Read

Read/Write

Read

Insertion Electromagnetic Flowmeter (IEF): Communication Overview

The Insertion Magmeter supports BACnet MS/TP and Modbus® RTU over 2-wire

RS485.

Selection of protocol and conguration of serial parameters require the use of the

display.

BACnet Object Overview

Supported BACnet Objects

Object Type

Dynamically

Creatable

Dynamically

Creatable

Object

Identier Object Name

Device

Analog Input

Analog Value

Binary Value

BitString Value

No

607xxx

AV1

AV2

BV1

BV2

BV3

BSV1

Series IEF 607xxx

Velocity

Flow

Total Flow

Reverse Flow

Empty Pipe

Reset Total Flow

Status Flags

Analog Input – Velocity

COV Increment Value

Supported Units:

Feet-per-second (76), Feet-per-minute (77), Meters-per-second (74), Meters-per-

minute (163), Meters-per-hour (164), Feet-per-hour (512)*, Feet-per-day (513)*,

Meters-per-day (514)*

* Non-Standard BACnet unit

Analog Value – Flow

COV Increment Value

Supported Units:

Cubic-feet-per-second (142), Cubic-feet-per-minute (84), Cubic-feet-per-hour (191),

Cubic-feet-per-day (248), US-gallons-per-minute (89), US-gallons-per-hour (192),

Liters-per-second (87), Liters-per-minute (88), Liters-per-hour (136), Cubic-meters-

per-second (85), Cubic-meters-per-minute (165), Cubic-meters-per-hour (135), US-

gallons-per-second (515)*, US-gallons-per-day (516)*, Liters-per-day (517)*, Cubic-

meters-per-day (518)*

* Non-Standard BACnet unit

Analog Value – Total Flow

COV Increment Value

Supported Units:

Cubic-feet (79), US-gallons (83), Liters (82), Cubic-meters (80)

Property Default Value Property Data Type Access

Object Identier

Object Name

ObjectType

Present Value

Status Flags

Event State

Reliability

Out Of Service

Units

COV Increment

Property List

AV1

“Velocity”

ANALOG_INPUT (0)

Current reading

0

NORMAL (0)

NO_FAULT_DETECTED(0)

FALSE (0)

Feet-per-second (76)

0.5

BACnetObjectIdentier

CharacterString

BACnetObjectType

Real

BACnetStatusFlags

BACnetEventState

BACnetReliability

Boolean

BACnetEngineeringUnits

Real

BACnetARRAY[N] of BACnetPropertyIdentier

Read

Read/Write

Read

Property Default Value Property Data Type Access

Object Identier

Object Name

ObjectType

Present Value

Status Flags

Event State

Reliability

Out Of Service

Units

COV Increment

Property List

AV2

“Total Flow”

ANALOG_INPUT (0)

Current reading

0

NORMAL (0)

NO_FAULT_DETECTED(0)

FALSE (0)

Cubic-feet (79)

1.0

BACnetObjectIdentier

CharacterString

BACnetObjectType

Real

BACnetStatusFlags

BACnetEventState

BACnetReliability

Boolean

BACnetEngineeringUnits

Real

BACnetARRAY[N] of BACnetPropertyIdentier

Read

Read/Write

Read

Property Default Value Property Data Type Access

Object Identier

Object Name

ObjectType

Present Value

Status Flags

Event State

Reliability

Out Of Service

Units

COV Increment

Property List

AV1

“Flow”

ANALOG_INPUT (0)

Current reading

0

NORMAL (0)

NO_FAULT_DETECTED(0)

FALSE (0)

Cubic-feet-per-second (142)

0.5

BACnetObjectIdentier

CharacterString

BACnetObjectType

Real

BACnetStatusFlags

BACnetEventState

BACnetReliability

Boolean

BACnetEngineeringUnits

Real

BACnetARRAY[N] of BACnetPropertyIdentier

Read

Read/Write

Read

Property Default Value Property Data Type Access

0.5 ft/s 0.1 ft/s 10.0 ft/s 0.1 ft/s

Property Default Value Property Data Type Access

1.0 ft³/s 0.133 ft³/s 13.3681 ft³/s 0.1 ft³/s

Property Default Value Property Data Type Access

1.0 ft³/s 0.133 ft³/s 13.3681 ft³/s 0.1 ft³/s

Binary Value – Reverse Flow

This object provides a simple indication of the direction of process ow. When the

process uid is detected as owing in the normal direction, the present value will return

inactive(0). When the process uid is detected as owing in the reverse direction, the

present value will return active(1).

This object supports COV subscription to allow a monitoring system to easily detect

changes in ow direction.

Binary Value – Empty Pipe

This object provides a simple indication of an error state where no process ow is

in contact with the probe. When the process uid is detected, the present value will

return inactive(0). When the process uid is not detected, the present value will return

active(1).

This object supports COV subscription to allow a monitoring system to easily detect

this error condition.

Binary Value – Reset Total Flow

Writing a value of 1 to the present value of this object will reset the value of Total Flow

to 0. Writing a value of 0 has no effect.

Property Default Value Property Data Type Access

Object Identier

Object Name

ObjectType

Present Value

Status Flags

Event State

Reliability

Out Of Service

Property List

BV1

“Reverse Flow”

BINARY_VALUE (5)

Inactive (0)

0

NORMAL (0)

NO_FAULT_DETECTED(0)

FALSE (0)

BACnetObjectIdentier

CharacterString

BACnetObjectType

BACnetBinaryPV

BACnetStatusFlags

BACnetEventState

BACnetReliability

Boolean

BACnetARRAY[N] of BACnetPropertyIdentier

Read

Read/Write

Read

Property Default Value Property Data Type Access

Object Identier

Object Name

ObjectType

Present Value

Status Flags

Event State

Reliability

Out Of Service

Property List

BV2

“Empty Pipe”

BINARY_VALUE (5)

Inactive (0)

0

NORMAL (0)

NO_FAULT_DETECTED(0)

FALSE (0)

BACnetObjectIdentier

CharacterString

BACnetObjectType

BACnetBinaryPV

BACnetStatusFlags

BACnetEventState

BACnetReliability

Boolean

BACnetARRAY[N] of BACnetPropertyIdentier

Read

Read/Write

Read

Property Default Value Property Data Type Access

Object Identier

Object Name

ObjectType

Present Value

Status Flags

Event State

Reliability

Out Of Service

Property List

BV3

“Reset Total Flow”

BINARY_VALUE (5)

Inactive (0)

0

NORMAL (0)

NO_FAULT_DETECTED(0)

FALSE (0)

BACnetObjectIdentier

CharacterString

BACnetObjectType

BACnetBinaryPV

BACnetStatusFlags

BACnetEventState

BACnetReliability

Boolean

BACnetARRAY[N] of BACnetPropertyIdentier

Read

Read/Write

Read

Read/Write

Read

BitString Value – Status Flags

This object provides a means for the meter to convey additional error status to a

BACnet client. See the table below for a denition of each bit.

BACnet Services

ReadProperty (DS-RP-B) ReadPropertyMultiple(DS-RPM-B)

WriteProperty (DS-WP-B) WritePropertyMultiple(DS-WPM-B)

Device Communication Control Service (DM-DCC-B)

This device supports the Device Communication Control Service BIBB. The optional

time duration in minutes is also supported. This device is congured with a password

that must be provided to successfully execute this command. The password is

“Dwyer”.

Reinitialize Device Service (DM-RD-B)

This device supports the Reinitialize Device Service BIBB. The supported device

states are COLDSTART and WARMSTART. All other states return error. This device

is congured with a password that must be provided to successfully execute this

command. The password is “Dwyer”.

SubscribeCOV Service (DS-COV-B)

This device supports the SubscribeCOV Service BIBB to allow easy monitoring of

input data.

• Up to seven (7) concurrent subscriptions

• Conrmed and Unconrmed COV Notications

• Fixed lifetime value up to 86400 seconds (24 hours).

• Indenite lifetime supported.

Modbus®Functions

The device supports the following functions

Modbus®Registers

Input Registers

The String data type is read as a

stream of ASCII characters with the rst

character sent in the MSB of the rst

register and the second character sent

in the LSB of the rst register and so on.

If the string is shorter than the allotted

size, the remaining bytes will be zero

padded.

Property Default Value Property Data Type Access

Object Identier

Object Name

ObjectType

Present Value

Status Flags

Event State

Reliability

Out Of Service

Property List

BSV1

“Status Flags”

BITSTRING_VALUE (39)

{FFFFFFFF FFFF}

0

NORMAL (0)

NO_FAULT_DETECTED(0)

FALSE (0)

BACnetObjectIdentier

CharacterString

BACnetObjectType

BitString

BACnetStatusFlags

BACnetEventState

BACnetReliability

Boolean

BACnetARRAY[N] of BACnetPropertyIdentier

Read

Read/Write

Read

Bit Meaning

0

1

2

3

4

5

6

7

8

9

10

11

Error: Reading/Writing Non-voltaile storage

Reserved

Error: Process measurement error

Error: Meter recovered from watchdog reset

Error: Factory conguration invalid

Error: Wiring board not installed/detected

Error: Power Supply board not installed/detected

Reserved

Error: Measurement board not installed/detected

Error: Excitation board not installed/detected

Error: Calibration Data Invalid

Error: Process Temperature Probe Failure

Function Name Function Code

Read Holding Registers

Read Input Registers

Write Single Register

Write Multiple Registers

03

04

06

16

Register Description Data Type Range

0001

0003

0005

0007

0008

0009 - 0010

8001 - 8016

8017 - 8020

8021 - 8028

8029 - 8032

Velocity

Flow

Total Flow

Reverse Flow

Empty Pipe

Status Flags

Model Number

Serial Number

Firmware Version

Date Code

32bit Float

Unsigned 16bit Integer

String

0 – Normal

1 – Reverse

0 – Process detected

1 – Process not detected

See BACnet BitString

Object “Status Flags”

“IEF-HN-10-COM”

“xxxxxxxx”

“x.x.x”

“xxxxxxxx”

Holding Registers

Device Name: A string, up to 40 characters long, that will be displayed on the LCD (if

present). When reading or writing, all 20 registers must be requested. Strings less than

40 characters shall be 0 padded.

Velocity Unit: Selects the unit of velocity for the value in the velocity register. See

Table 1.

Flow Unit: Selects the unit of ow for the value in the Flow register. See Table 2.

Volume Unit: Selects the unit of volume for the value in the Total Flow register. See

Table 3.

Reset Total Flow: When a value of 1 is written to this register, the value in the Total

Flow register is reset to 0. Writing a value of 0 has no effect. This register will always

return a 0 when read.

Reset Device: When a value of 1 is written to this register, the device will perform a

warm reset after 5 seconds. Writing a value of 0 has no effect. This register will always

return 0 when read.

* Default unit

Multi-Address Support

Multi-Address support allows a register to be read or written to using different byte

orientations specied by the address range. For example, input register 0003 can

also be read at 2003, 4003 and 6003 with different byte orientations as listed in Table

7. Registers that do not have multi-address support are only available in Big-Endian

byte orientation (Modbus® standard).

Register Description Data Type Range

0001 – 0020

0021

0022

0023

0024

0025

Device Name

Velocity Unit

Flow Unit

Volume Unit

Reset Total Flow

Reset Device

String

Unsigned 16bit integer

0 – 7

0 – 15

0 – 3

0 or 1

0 or 1 Float/32bit Values 16Bit Values

Register 1 Register 2 Register 3

Byte Order Address Range MSB LSB MSB LSB

Big-Endian

Byte Swap

Word Swap

Little-Endian

1-2000

2001-4000

4001-6000

6001-8000

A

B

C

D

B

A

D

C

D

A

B

D

C

B

A

B

A

B

A

B

A

TABLE 1: VELOCITY UNIT VALUES

Value Unit

*0

1

2

3

4

5

6

7

Feet-per-second (ft/s)

Feet-per-minute (ft/min)

Feet-per-hour (ft/hr)

Feet-per-day (ft/day)

Meters-per-second (m/s)

Meters-per-minute (m/min)

Meters-per-hour (m/hr)

Meters-per-day (m/day)

TABLE 2: FLOW UNIT VALUES

Value Unit

*0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Cubic-feet-per-second (ft3/s)

Cubic-feet-per-minute (ft3/min)

Cubic-feet-per-hour (ft3/hr)

Cubic-feet-per-day (ft3/day)

Gallons-per-second (gal/s)

Gallons-per-minute (gal/min)

Gallons-per-hour (gal/hr)

Gallons-per-day (gal/day)

Liters-per-second (L/s)

Liters-per-minute (L/min)

Liters-per-hour (L/hr)

Liters-per-day (L/day)

Cubic-meters-per-second (m3/s)

Cubic-meters-per-minute (m3/min)

Cubic-meters-per-day (m3/day)

TABLE 3: VOLUME UNIT VALUES

Value Unit

0

*1

2

3

Cubic-feet (ft3)

Gallons (gal)

Liters (L)

Cubic-meters (m3)

NOTES

__________________________________________________________________________________________________________________________________________

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.

Phone: 219/879-8000

Fax: 219/872-9057

www.dwyer-inst.com

e-mail: [email protected]

This product uses FreeRTOS (www.FreeRTOS.org) version 9.0.0. A copy of the original FreeRTOS source shall be provided upon request.

NOTES

__________________________________________________________________________________________________________________________________________

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