FieldServer FS-8700-73 User Manual

Driver Version:

2.01

Document Revision:

3

APPLICABILITY & EFFECTIVITY

Effective for all systems manufactured after February 2012

Driver Manual

(Supplement to the FieldServer Instruction Manual)

FS-8700-73 BACnet MSTP - Serial

A Sierra Monitor Company

FS-8700-73 BACnet MSTP Manual Table of Contents

TABLE OF CONTENTS

1 BACnet MSTP Description ...................................................................................................................................... 4

1.1 BTL Mark – BACnet Testing Laboratory ......................................................................................................... 4

2 Driver Scope of Supply ........................................................................................................................................... 5

2.1 Supplied by FieldServer Technologies for this driver ..................................................................................... 5

2.2 Provided by the Supplier of 3rd Party Equipment .......................................................................................... 5

2.2.1 Hardware ............................................................................................................................................... 5

2.2.2 Optional Items ....................................................................................................................................... 5

3 Hardware Connections .......................................................................................................................................... 6

3.1 Hardware connection Tips/Hints ................................................................................................................... 7

3.2 Connection Notes .......................................................................................................................................... 7

4 Data Array Parameters .......................................................................................................................................... 8

5 Configuring the FieldServer as a BACnet MSTP Client ........................................................................................... 9

5.1 Specify the MAC_Address of the FieldServer ................................................................................................ 9

5.2 Client Side Connection Parameters ............................................................................................................. 10

5.3 Client Side Node Parameters ....................................................................................................................... 11

5.4 Client Side Map Descriptor Parameters ....................................................................................................... 11

5.4.1 FieldServer Specific Map Descriptor Parameters ................................................................................. 11

5.4.2 Driver Specific Map Descriptor Parameters ......................................................................................... 12

5.4.3 Timing Parameters ............................................................................................................................... 12

5.4.4 Map Descriptor Example. ..................................................................................................................... 13

6 Configuring the FieldServer as a BACnet MSTP Server ........................................................................................ 14

6.1 Driver Specific FieldServer Parameters ........................................................................................................ 14

6.2 Server Side Connection Parameters ............................................................................................................ 15

6.3 Server Side Node Parameters ...................................................................................................................... 16

6.4 Server Side Map Descriptor Parameters ...................................................................................................... 16

6.4.1 FieldServer Specific Map Descriptor Parameters ................................................................................. 16

6.4.2 Driver Specific Map Descriptor Parameters ......................................................................................... 16

6.4.3 Map Descriptor Example. ..................................................................................................................... 18

Appendix A. Useful Features ....................................................................................................................................... 19

Appendix A.1. BACnet object names ....................................................................................................................... 19

Appendix A.2. Network number .............................................................................................................................. 19

Appendix A.3. Accessing Data from BACnet Properties comprising Arrays of Values ............................................. 20

Appendix A.4. FieldServer implementation of BACnet priority Arrays .................................................................... 20

Appendix A.4.1. Accessing Priority Array information...................................................................................... 21

Appendix A.5. Relinquishing Control of a Point as a Client ..................................................................................... 22

Appendix A.6. BACnet State Text Preload ............................................................................................................... 22

Appendix A.6.1. Method 1 – Using an Offset/User Table: ................................................................................ 23

Appendix A.6.2. Method 2 – Using a Single Data Array: .................................................................................. 23

Appendix A.6.3. Using Intrinsic Reporting for a Multistate Value .................................................................... 24

Appendix A.7. COV and Intrinsic Reporting ............................................................................................................. 24

Appendix A.7.1. Notes on COV configuration: .................................................................................................. 24

Appendix A.7.2. Notes on Intrinsic Reporting configuration: ........................................................................... 25

Appendix A.7.3. Map Descriptor Example - COV .............................................................................................. 26

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FS-8700-73 BACnet MSTP Manual Table of Contents

Appendix A.7.4. Map Descriptor Example - Enable or Disable COV ................................................................. 26

Appendix A.7.5. Map Descriptor Example – Intrinsic Reporting ....................................................................... 26

Appendix A.7.6. Setting the Priority of Intrinsic Alarming ................................................................................ 26

Appendix A.7.7. Map Descriptor Example – Set up a Permanent Static Recipient List .................................... 27

Appendix A.8. Factors Determining the Reliability Property ................................................................................... 28

Appendix A.9. Specifying ReadPropertyMultiple and WritePropertyMultiple Transactions using Linked Map

Descriptors ............................................................................................................................................................... 28

Appendix A.10. Update Property Function .............................................................................................................. 31

Appendix A.10.1. Supported values: ................................................................................................................. 31

Appendix A.10.2. Mode of Operation when used for the Relinquish_Default property: .................................. 31

Appendix A.11. Disabling selected BACnet services ................................................................................................ 31

Appendix A.12. Using a .ini file to set the Vendor_ID and Vendor_Name of the Device Object............................. 33

Appendix B. Troubleshooting ...................................................................................................................................... 34

Appendix B.1. Debugging a BACnet connection ...................................................................................................... 34

Appendix B.2. COV Configuration ............................................................................................................................ 34

Appendix B.3. BACnet Specific Statistics ................................................................................................................. 34

Appendix B.4. BACnet Specific Error Messages ....................................................................................................... 35

Appendix B.5. BACnet Error Response Decoding .................................................................................................... 35

Appendix B.5.1. BACnet Error CLASS ................................................................................................................ 35

Appendix B.5.2. BACnet Error CODES for Error Class OBJECT ........................................................................... 36

Appendix B.6. Rediscovering Offline Devices .......................................................................................................... 37

Appendix B.7. Timeout Errors .................................................................................................................................. 37

Appendix B.8. PDU limit reached errors .................................................................................................................. 37

Appendix C. Vendor Information ................................................................................................................................. 38

Appendix C.1. McQuay ............................................................................................................................................ 38

Appendix C.2. Trane................................................................................................................................................. 38

Appendix C.3. Liebert .............................................................................................................................................. 38

Appendix C.4. Automated Logic Corporation. ......................................................................................................... 38

Appendix C.5. Honeywell EBI ................................................................................................................................... 38

Appendix C.6. Using Cimetrics Explorer................................................................................................................... 38

Appendix D. Reference ................................................................................................................................................ 41

Appendix D.1. Object_Type Legal Values – Abbreviation Descriptions ................................................................... 41

Appendix D.2. Property Legal Values ....................................................................................................................... 41

Appendix D.3. Units ................................................................................................................................................. 43

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FS-8700-73 BACnet MSTP Driver Manual Page 4 of 48

FieldServer Mode

Nodes

Comments

Client

1 Server

32

1 BACNET MSTP D E S C R I PTION

The BACnet Master-Slave/Token-Passing (MSTP) driver implements a data link protocol that uses the services of
the RS-485 physical layer. See the FieldServer BACnet PIC statement for the level of conformance that this driver
implements.

All information in a BACnet system is represented in terms of objects. The Object_Identifier is a 32-bit code that
identifies the type of Object (also identified by the Object_Type Property) and its "Instance" number, which
together uniquely identify the Object within its BACnet device. Theoretically, a BACnet device could have over four
million Objects of a particular type. The Object_Name is a text string, which has a unique capability. BACnet
devices may broadcast queries for devices that contain Objects with a specific Object_Name. This can greatly
simplify project setup.

BACnet requires one Device Object to be present in every BACnet device. The Device Object makes information
about the device and its capabilities available to other devices on the networks. Before one BACnet device starts
control-related communications with another, it needs to obtain some of the information presented by the other
device's Device Object. Unlike other Objects, the Device Object's Instance number must be unique across the
entire BACnet internetwork because it is used to uniquely identify the BACnet devices. It may be used to
conveniently identify the BACnet device from other devices during installation.

Standard object types are used to hold real time data and other information. Each Object Type is referenced by a
number, for example 0 represents an Analog Input.

Each Object consists of a number of prescribed properties, the main property being the Present_Value. Objects
are monitored and controlled through their properties. The Analog Input Object is representative of the Objects
involved directly with control elements and many of its Properties reflect this.

The information that follows describes how to expand upon the factory defaults provided in the configuration files
included with the FieldServer.

BTL Mark – BACnet Testing Laboratory

The BTL mark is a symbol that indicates to a consumer that a product has passed a
series of rigorous tests conducted by an independent laboratory which verifies that the
product correctly implements the BACnet features claimed in the listing. The mark is a
symbol of a high-quality BACnet product. For more information about the BACnet
Testing Laboratory go to: http://www.bacnetinternational.net/btl/.

Max Nodes Supported

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FieldServer Technologies PART #

Description

FS-8917-16

RJ45 to terminal connector cable

Part #

Description

BACnet Controller(s) on RS-485 Network

PART #

Vendor/Manufacturer

Description

FS-4301-00

FieldServer

RS-232 to RS-485 converter

2 DRIVER SCOPE OF SUP P LY

Sup plie d by FieldServer Technologies for t his d river

Provided by the Supplier of 3rd Party Equipment

Har d w a r e

Optional Items

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DATE: 5/26/06
BY: MC

(408)-262-2299

BASE NAME:
FILE NAME: 8700-73 .VSD

FIELDSERVER

BACNET MSTP

CONNECTION DIAGRAM

FieldServer

+

-

Gnd

Server 1

+

-

Gnd

Server 1

+

-

Gnd

Server n

+

-

Gnd

Client

+

-

Gnd

FieldServer

+

-

Gnd

Server 2

+

-

Gnd

Server n

+

-

Gnd

FieldServer as a BACnet MSTP Client

FieldServer as a BACnet MSTP Server

3 HARDWARE CONNE CTIONS

The FieldServer is connected to the BACnet MSTP as shown in connection drawing.

Configure the BACnet MSTP according to manufacturer’s instructions

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R1

-

+

FieldServer

GND

100

1/2 W

TD(A)

TD(B)

RD(A)

RD(B)

GND

485SDD16

TD(A)

TD(B)

RD(A)

RD(B)

GND

485SDD16

100

1/2 W

100

1/2 W

RS-485 2-wire Connection

Har d w a r e connection Tips/Hints

Follow standard RS-485 2-wire guidelines for installation. See connection diagram below.

Connection Notes

The x25 and the QuickServer do not support being configured as a BACnet MSTP client on one port and a BACnet
MSTP server on another port at the same time. The x40 and the x30 support this.

In order for this to work the BACnet MSTP server section must be configured first.

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Section Title

Data_Arrays

Column Title

Function

Legal Values

Data_Array_Name

Provide name for Data Array

Up to 15 alphanumeric
characters

Data_Array_Format

Provide data format. Each Data Array can only take on one
format.

Float, Bit, Uint16, Uint32,
Sint16, Sint32, Byte

Data_Array_Length

Number of Data Objects. Must be larger than the data
storage area required by the Map Descriptors for data placed
in this array.

1-10, 000
// Data Arrays

Data_Arrays

Data_Array_Name

, Data_Array_Format

, Data_Array_Length

DA_AI_01

, Float

, 200

DA_AO_01

, Float

, 200

DA_DI_01

, Bit

, 200

DA_DO_01

, Bit

, 200

4 DATA ARR AY PA R A M E TER S

Data Arrays are “protocol neutral” data buffers for storage of data to be passed between protocols. It is necessary

to declare the data format of each of the Data Arrays to facilitate correct storage of the relevant data.

Example

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Section Title

FieldServer

Column Title

Function

Legal Values

System_Node_ID

Specify the MAC_Address of the FieldServer.

1-254

// Bridge

Bridge

Title

, System_Node_ID

BACnet_MSTP

, 11

5 CONFIGURING T H E F I E L DSERVER AS A BACNET MSTP C L I ENT

For a detailed discussion on FieldServer configuration, please refer to the FieldServer Configuration Manual. The
information that follows describes how to expand upon the factory defaults provided in the configuration files
included with the FieldServer (See “.csv” sample files provided with the FieldServer).

This section documents and describes the parameters necessary for configuring the FieldServer to communicate
with a BACnet MSTP Server.

The configuration file tells the FieldServer about its interfaces, and the routing of data required. In order to enable
the FieldServer for BACnet MSTP communications, the driver independent FieldServer buffers need to be declared
in the “Data Arrays” section, the destination device addresses need to be declared in the “Client Side Nodes”
section, and the data required from the servers needs to be mapped in the “Client Side Map Descriptors” section.
Details on how to do this can be found below.

Note that in the tables, * indicates an optional parameter, with the bold legal value being the default.

Spe cify the MAC_Address o f the FieldServer

The MAC_Address is used on the Data_Link (or physical) layer as the source or destination address. See section

9.1.1.2 of the BACnet ANSI/ASHREA standard for more information.

Example

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Section Title

Connections

Column Title

Function

Legal Values

Port

Specify which port the device is connected to the FieldServer

P1-P81, R1-R22

Baud

Specify baud rate

9600, 19200, 38400,
76800

3

Parity*

Specify parity

Odd, Even, None

Data_Bits*

Specify data bits

7, 8

Stop_Bits*

Specify stop bits

1, 2

Protocol

Specify protocol used

BACnet_MSTP

Poll Delay*

Time between internal polls

0-32000s, 1s

Timeout

Application logger timeout

30s

Max_Master*

Specify the highest MAC_Address for Master nodes. When
designing a MSTP network with multiple Master_Node devices,
allocate the MAC_Address settings on the different devices starting
at 1. This will allow you to specify a small Max_Master parameter
and hence will improve overall network performance

1-127

Max_Info_Frames

Specify the maximum number of information frames the connection
may send before it must pass the token.

1-65535
// Client Side Connections

Connections

Port

, Baud

, Parity

, Data_Bits

, Stop_Bits

, Protocol

, Poll_Delay

, Timeout

R1

, 38400

, None

, 8

, 1

, BACnet_MSTP

, 0.100s

, 30s

1
2

3

Clie nt Side Connection Parameters

Example

P1 to P8 will require the optional RS-485 converter (Part # 4301-00)
Not all ports shown are necessarily supported by the hardware. Consult the appropriate Instruction manual for details of the ports available

on specific hardware.

76800 baud is supported on the X30, X25 and ProtoCessor but not on the X20 and X40

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Section Title

Nodes

Column Title

Function

Legal Values

Node_Name

Provide name for Node

Up to 31 alphanumeric
characters

Node_ID

Specify the BACnet Device object instance.

1 - 16777215

Protocol

Specify protocol used

BACnet_MSTP

Port

Specify port

P1-P84, R1-R25

MAC_Address

MAC_Address of the physical server node.

1-127 (for Master Nodes)
1-254 (for Slave Nodes)

Network_Number*

Use this parameter if the remote MSTP server device is on
another BACnet network connected via a router.

1, 2, 3.... 16 bit positive

numbers, 5

Retries*

Number of timeouts before the Node goes offline.

0,1,2,3

// Client Side Nodes

Nodes

Node_Name

, Node_ID

, Protocol

, Port

, Retries

DEV_1

, 1

, BACnet_MSTP

, R1

, 2

Column Title

Function

Legal Values

Map_Descriptor_Name

Name of this Map Descriptor. This is used for
Object_Name Property. Ensure that unique names
are configured for each device. Refer to Appendix
A.1.

Up to 37 alphanumeric
characters

Data_Array_Name

Name of Data Array where data is to be stored in the
FieldServer

One of the Data Array names
from Section 4

Data_Array_Offset

Starting location in Data Array

0 to (“Data_Array_Length” -1)
as specified in Section 4

Function

Function of Client Map Descriptor

Rdbc, Wrbc, Wrbx, Arcs

4
5

Clie nt Side Node Parame t e r s

Either Node_ID OR MAC_Adddress must be specified. If the Server Node supports Who-Is and I-Am then it is
better to use the Node_ID parameter.

Example

Clie nt Side Map Descriptor Parameters

Fie ldServer Specific Ma p D e script o r Parameters

P1 to P8 will require the optional RS-485 converter (Part # 4301-00)
Not all ports shown are necessarily supported by the hardware. Consult the appropriate Instruction manual for details of the ports available

on specific hardware.

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Column Title

Function

Legal Values

Node_Name

Name of Node to fetch data from

One of the Node names
specified in Section 0

Object_Type
(Alias = Data_Type)

Type of object. Refer to Appendix D.1 for more
information.

AI, AO, AV, BI, BO, BV, MI,
MO, MV, NC

Object_Instance
(Alias = Address)

Instance of the object on the device.

0, 1, 2, 3, …4194303
Property

The BACnet property to be read.

Refer to Appendix D.2

Data_Array_Low_Scale*

Scaling zero in Data Array

-32767 to 32767, 0

Data_Array_High_Scale*

Scaling max in Data Array

-32767 to 32767, 100

Node_Low_Scale*

Scaling zero in Connected Node

-32767 to 32767, 0

Node_High_Scale*

Scaling max in Connected Node

-32767 to 32767, 100

Length*

Used to create an array of sequential Object_Instances
on an Object_Type.

1 to max point count of
the FieldServer, 1

Array_Index*

When referencing Multistate properties, allows the
user to specify the index of the property to be read. If 1
is specified, the first one will be read, if 2 is specified,
the second will be read, etc. If 0 is specified, the driver
will return the total number (count) of array items
linked to the property. If the parameter is not
specified, a list of all items will be returned. Refer to
Appendix A.3

0 to max number of array
items in the BACnet
Property, -

Write_Priority*

Allows the driver to specify the write priority used to
write an output.

1..16, 16

Linked_Map_Descriptors*

This parameter allows the linking of Map Descriptors to
an active read or write Map Descriptor in order to
construct a ReadPropertyMultiple or
WritePropertyMultiple transaction. Refer to Appendix
A.9

The name of a previously
defined active Map
Descriptor, -

Length*

When the optional Length parameter is set to a value N,
the Map Descriptor will include N consecutive instances
of the specified Object_Type. For example, if a Map
Descriptor specifies Object_Type, Address 4 and Length
3, this means that the AO instances 4, 5 and 6 will be
included in the read or write transaction. The
corresponding Data Array values are in consecutive
positions in the Data Array, starting at the specified
Data_Array_Offset.

Any positive integer that
falls between the range
of the Data_Array_Offset
and the
Data_Array_Length as
specified in Section 4, -
Refer also to Appendix
A.9

Column Title

Function

Legal Values

Scan_Interval*

Rate at which data is polled

0-32000, 2s

Driver Specific Map Descriptor Parameters

Timing Parameters

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// Client Side Map Descriptors

Map_Descriptors

Map_Descriptor_Name

, Data_Array_Name

, Data_Array_Offset

, Function

, Node_Name

, Data_Type

, Object_Instance

, Property

, Scan_Interval

CMD_AI_01

, DA_AI_01

, 0

, Rdbc

, DEV_1

, AI

, 1

, Present_Value

, 20.000s

CMD_AI_02

, DA_AI_01

, 1

, Rdbc

, DEV_1

, AI

, 2

, Present_Value

, 20.000s

CMD_AI_03

, DA_AI_01

, 2

, Rdbc

, DEV_1

, AI

, 3

, Present_Value

, 20.000s

CMD_AO_01

, DA_AO_01

, 0

, Rdbc

, DEV_1

, AO

, 1

, Present_Value

, 30.000s

CMD_AO_02

, DA_AO_01

, 1

, Rdbc

, DEV_1

, AO

, 2

, Present_Value

, 30.000s

CMD_AO_03

, DA_AO_01

, 2

, Rdbc

, DEV_1

, AO

, 3

, Present_Value

, 30.000s

Map_Descriptors

Map_Descriptor_Name

, Data_Array_Name

, Data_Array_Offset

, Function

, Node_Name

, Data_Type

, Object_Instance

, Property

, Scan_Interval

CMD_DI_01

, DA_DI_01

, 0

, Rdbc

, DEV_1

, BI

, 1

, Present_Value

, 15.000s

CMD_DI_02

, DA_DI_01

, 1

, Rdbc

, DEV_1

, BI

, 2

, Present_Value

, 15.000s

CMD_DI_03

, DA_DI_01

, 2

, Rdbc

, DEV_1

, BI

, 3

, Present_Value

, 15.000s

CMD_DO_01

, DA_DO_01

, 0

, Rdbc

, DEV_1

, BO

, 1

, Present_Value

, 30.000s

CMD_DO_02

, DA_DO_01

, 1

, Rdbc

, DEV_1

, BO

, 2

, Present_Value

, 30.000s

CMD_DO_03

, DA_DO_01

, 2

, Rdbc

, DEV_1

, BO

, 3

, Present_Value

, 30.000s

Map Descriptor Example.

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Section Title

Bridge

Column Title

Function

Legal Values

Title

FieldServer name

Text

System_Station_Address

The FieldServers MAC address on the MSTP network

1-254

// FieldServer Driver specific parameters

Bridge

Title

, System_Station_Address

BacNet MSTP Server V1.02a

, 11

6 CONFIGURING T H E F I E L DSERVER AS A BACNET MSTP S E R VE R

For a detailed discussion on FieldServer configuration, please refer to the FieldServer Configuration Manual. The
information that follows describes how to expand upon the factory defaults provided in the configuration files
included with the FieldServer (See “.csv” sample files provided with the FieldServer).

This section documents and describes the parameters necessary for configuring the FieldServer to communicate
with a BACnet MSTP Client.

The configuration file tells the FieldServer about its interfaces, and the routing of data required. In order to enable
the FieldServer for BACnet MSTP communications, the driver independent FieldServer buffers need to be declared
in the “Data Arrays” section, the FieldServer virtual node(s) needs to be declared in the “Server Side Nodes”
section, and the data to be provided to the Clients needs to be mapped in the “Server Side Map Descriptors”
section. Details on how to do this can be found below.

Note that in the tables, * indicates an optional parameter, with the bold legal value being the default.

Driver Specific FieldServer Parame t e r s

Example

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Section Title

Connections

Column Title

Function

Legal Values

Port

Specify which port the device is connected to the FieldServer

P1-P86, R1-R27

Baud*

Specify baud rate

9600, 19200, 38400,
76800

8

Parity*

Specify parity

None, Odd, Even

Data_Bits*

Specify data bits

7, 8

Stop_Bits*

Specify stop bits

1, 2

Protocol

Specify protocol used

BACnet_MSTP

Connection_Type*

Specify if the connection must be in Master_Mode or in
Slave_Mode

MSTP_Master_Mode

MSTP_Slave_Mode

Max_Master*

Specify the highest possible MAC_Address that exists on the
MSTP network. Only applicable for MSTP_Master Mode
connections. (See also section 4.7)

9

1-127

Max_Info_Frames*

Specify the maximum number of information frames the
connection may send before it must pass the token. Only
applicable for MSTP_Master Mode connections. 9

1-65535
// Server Side Connections

Connections

Port

, Baud

, Parity

, Data_Bits

, Stop_Bits

, Protocol

, Timeout

, Connection_Type

R1

, 38400

, None

, 8

, 1

, BACnet_MSTP

, 30

, MSTP_Master_Mode

6
7

8
9

If the Server connection needs to operate in Slave Mode then specify the
Connection_Type as MSTP_Slave_Mode

Server Side Connection P aram eters

Example

P1 to P8 will require the optional RS-485 converter (Part # 4301-00)
Not all ports shown are necessarily supported by the hardware. Consult the appropriate Instruction manual for details of the ports available

on specific hardware.

76800 baud is supported on the X30, X25 and ProtoCessor but not on the X20 and X40

For Server configurations the Max_Master and Max_Info_Frames parameters (or properties) can be overridden from a BACnet Client by using
the “Write Property” command. Note that when the FieldServer is restarted, the default values specified in the configuration file will be
applied

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