A Sierra Monitor Company Driver Manual (Supplement to the FieldServer Instruction Manual) FS-8700-02 Modbus Plus APPLICABILITY & EFFECTIVITY Effective for all systems manufactured after May 1, 2001 Instruction Manual Part Number FS-8700-02 Version 1.
FS-8700-02 Modbus Plus Driver Manual Table of Contents 1. Modbus Plus Description .............................................................................................................1 1.1 Hardware/Software ...............................................................................................................1 2. FieldServer as a Modbus Plus Client ............................................................................................3 2.1 Hardware Connections .......................
FS-8700-02 Modbus Plus Driver Manual 1. Modbus Plus Description The Modbus Plus driver allows the FieldServer to transfer data to and from devices using Modbus Plus protocol. The FieldServer can emulate either a Server or Client. The information that follows describes how to expand upon the factory defaults provided in the configuration files included with the FieldServer. The FieldServer is shipped with the switches set of a default address of 11.
FS-8700-02 Modbus Plus Address 14 15 16 17 18 19 20 21 22 Switches 6--1 001101 001110 001111 01 0000 010001 010010 010011 010100 010101 Driver Manual Address 36 37 38 39 40 41 42 43 44 Switches 6--1 100011 100100 100101 100110 100111 101000 101001 101010 101011 Address 58 59 60 61 62 63 64 Switches 6--1 111001 111010 111011 111100 111101 111110 111111 * = default Table 2: Summary of Modbus Data Access Commands Function Code (Decimal) Command Name 1 Read Discrete Output Status (0xxxx) 2 Read Discrete
FS-8700-02 Modbus Plus Driver Manual 2. FieldServer as a Modbus Plus Client 2.1 Hardware Connections It is possible to connect a Modbus RTU device to any of the eight RS232 ports or two RS485 ports. These ports just need to be configured for Modbus RTU in the configuration file. Configure the PLC according to manufacturer’s instructions. 2.2 Configuration File Structure Refer to section 4.1 of the Instruction Manual for a description of the operation principle of the FieldServer.
FS-8700-02 Modbus Plus Driver Manual 2.2.
FS-8700-02 Modbus Plus Driver Manual 3. FieldServer as a Modbus Plus Server 3.1 Hardware Connections Refer to the Drawings in section 4 Configure the Modbus Plus client according to manufacturer’s instructions (refer to section below on examples of FieldServer setup for typical clients 3.2 Configuration File Structure Refer to section 4.1 of the Instruction Manual for a description of the operation principle of the FieldServer.
FS-8700-02 Modbus Plus Driver Manual 3.2.
FS-8700-02 Modbus Plus Driver Manual MSTR in Modbus Plus Node FieldServer Technologies 1991 Tarob Court, Milpitas, California 95035 (408) 262-2299 fax: (408) 262-9042 Visit our website: www.fieldserver.com E-mail: support@fieldserver.