FieldServer FS-8700-15 User Manual

A Sierra Monitor Company

Driver Manual

(Supplement to the FieldServer Instruction Manual)

FS-8700-15 Modbus Daniels

APPLICABILITY & EFFECTIVITY

Effective for all systems manufactured after May 1, 2001

FS-8700-15 Modbus Daniels Manual Index

TABLE OF CONTENTS

1. Modbus Daniels Description............................................................................................1

2. Driver Scope of Supply..................................................................................................... 1

2.1. Supplied by FieldServer Technologies for this driver ...................................................1

2.2. Provided by the Supplier of 3rd Party Equipment..........................................................1

2.2.1. Required 3rd Party Configuration ...............................................................................1

3. Hardware Connections ..................................................................................................... 2

3.1. Hardware Connection Tips / Hints................................Error! Bookmark not defined.

4. Configuring the FieldServer as a Modbus Daniels Client .............................................2

4.1. Data Arrays/Descriptors ...............................................................................................3

4.2. Client Side Connection Descriptions ............................................................................3

4.3. Client Side Node Descriptors .......................................................................................4

4.4. Client Side Map Descriptors .........................................................................................5

4.4.1. FieldServer Related Map Descriptor Parameters...................................................... 5

4.4.2. Driver Related Map Descriptor Parameters ..............................................................5

4.4.3. Timing Parameters .................................................................................................... 5

4.4.4. Map Descriptor Example. .......................................................................................... 6

5. Advanced Topics ..............................................................................................................7

6. Driver Notes.......................................................................................................................7

7. Troubleshooting tips ............................................................Error! Bookmark not defined.

7.1. Connection Tips & Hints ............................................... Error! Bookmark not defined.

8. Revision History................................................................................................................7

FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.fieldserver.com

Tel: [phone] Fax: [phone] Toll_Free: 888-509-1970 email: [e-mail]

FS-8700-15 Modbus Daniels Manual Page 1 of 7

1. Modbus Daniels Description

The Modbus Daniels driver allows the FieldServer to transfer data to and from devices over
either RS-232 or RS-485 using Modbus Daniels protocol. The FieldServer can only emulate a
Client.

Modbus Daniels is an inclusion into Modbus ASCII, allowing floats to be used. Modbus Daniels
is designed to support floats in the address range 7000 to 7999. The "Double" data type is not
supported. Other standard Modbus data types are supported.

Max Nodes Supported

FieldServer Mode Nodes Comments

The maximum achievable number of devices on the

Client 255

network may be less depending on device loading and
network speed characteristics. Only one client device
allowed on multidrop systems.

2. Driver Scope of Supply

2.1. Supplied by FieldServer Technologies for this driver

FieldServer Technologies
PART #

FS-8915-10 UTP cable (7 foot) for RS_232 use
FS-8917-01 RJ45 to DB25M connection adapter
SPA59132 RS-485 connection adapter

- Driver Manual.

Description

2.2. Provided by the Supplier of 3rd Party Equipment

2.2.1. Required 3rd Party Configuration

The Modbus Daniels device must be set to use Modbus ASCII protocol.

FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.fieldserver.com

Tel: [phone] Fax: [phone] Toll_Free: 888-509-1970 email: [e-mail]