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GE Consumer & Industrial
P485 Modbus to Profibus
Converter
Instruction Manual
Manual P/N: 1601-0237-A1
Manual Order Code: GEK-113190
Copyright © 2005 GE Multilin
ISO9001:2000
GE Multilin
215 Anderson Avenue, Markham, Ontario
Canada L6E 1B3 GE Multilin's Quality
Management System is
Tel: (905) 294-6222 Fax: (905) 201-2098 registered to ISO9001:2000
QMI # 005094
Internet: http://www.GEmultilin.com
UL # A3775
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GE Consumer & Industrial P485 Modbus to Profibus Converter Table of contents INTRODUCTION Getting started........................................................................................................1–1 Inspecting the package and product.................................................................................................1–1 Contact information...................................................................................................................................1
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TABLE OF CONTENTS Profibus installation procedure ...........................................................................2–7 Profibus configuration tool.....................................................................................................................2–7 Profibus network termination ...............................................................................................................2–7 Links .........................................................................
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TABLE OF CONTENTS Basic settings ..........................................................................................................5–2 Parameter window .....................................................................................................................................5–2 Communication............................................................................................................................................5–2 Message delimiter.............................
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TABLE OF CONTENTS Step 1: Selecting the fieldbus type......................................................................................................9–6 Step 2: Selecting the sub-network properties ...............................................................................9–7 Step 3: Include device types ..................................................................................................................9–7 Step 4: Connect devices to the sub-network........................
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GE Consumer & Industrial P485 Modbus to Profibus Converter Chapter 1: Introduction Introduction Getting started INSPECTING THE Examine the shipping container for obvious damage prior to installing this product; notify PACKAGE AND PRODUCT the carrier of any damage that you believe occurred during shipment or delivery. Inspect the contents of this package for any signs of damage and ensure that the items listed below are included. Remove the items from the shipping container. Be sure to keep t
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INTRODUCTION Document conventions DESCRIPTION The following conventions are used throughout this document: • Numbered lists provide sequential steps. • Bulleted lists provide information, not procedural steps. • The term ‘user’ refers to the person or persons responsible for installing the P485 Modbus to Profibus Converter in a network. • Hexadecimal values are written in the format 0xNNNN, where NNNN is the hexadecimal value. • Decimal values are represented as NNNN, where NNNN is the decimal
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INTRODUCTION About the P485 Modbus to Profibus Converter APPLICATION The P485 Modbus to Profibus Converter (or P485) acts as a gateway between the Modbus protocol and a Profibus-DP network. Integration of industrial devices is enabled without loss of functionality, control, and reliability, both when retrofitting to existing equipment as well as when setting up new installations. Profibus master (PLC) Profibus master (PLC) HMI HMI Profibus slave Profibus slave PC for configuration and monitor
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INTRODUCTION Ordering ORDER CODES The following table illustrates the order codes for the P485 Modbus to Profibus Converter. Table 1–1: P485 order codes P485 – * Base unit P485 | P485 Modbus to Profibus Converter C With configuration cable X No configuration cable Specifications MECHANICAL HOUSING Plastic housing with snap-on connection to DIN-rail, protection class IP20 DIMENSIONS L x W x H: 120 mm × 75 mm × 27 mm (4.72-in × 2.95-in × 1.06-in) PROTECTION CLASS Protection class: IP20 ELECTRICAL
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GE Consumer & Industrial P485 Modbus to Profibus Converter Chapter 2: Installation Installation Quick install PROCEDURE 1. Snap the P485 on to the DIN-rail (see DIN-rail mounting on page 2–5). 2. Connect the Profibus cable (see Profibus connector on page 2–2). 3. Connect the serial Modbus network cable (see Modbus connector on page 2–4 for details). 4. Connect a PC using the configuration cable (see Configuration cable on page 2–3). 5. Connect the power cable and apply power to the unit (see P
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INSTALLATION A B C E D Figure 2-1: P485 electrical connections PROFIBUS CONNECTOR The Profibus connector is indicated as A in the figure above. This connector is used to connect the P485 to the Profibus network. The pin assignments for the Profibus connector are shown below. Table 2–1: Profibus connector pin assignments Pin Signal Description 1- - 2- - 3 B-Line Positive RxD/TxD (RS485) 4 RTS * Request To Send 5 GNDBUS ** Isolated ground from the RS485 side 6 +5 V BUS ** Isolated +5V output from
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INSTALLATION CONFIGURATION CABLE The PC connector is indicated as B in Figure 2-1: P485 electrical connections on page 2–2. This connector is used to connect the P485 to a PC using the configuration cable for configuration and monitoring purposes. A P485/D485 configuration cable can be purchased from GE Multilin. The wiring for the configuration cable is shown below. D-sub 9 female (PC) Modular 4/4 RJ11 connector (P485) 1 1 Ground RS232 Rx 2 2 Ground RS232 Tx 3 3 Rx 4 4 Tx Ground 5 Connects t
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INSTALLATION 51 9 6 (female) Figure 2-5: Configuration cable (PC end) MODBUS CONNECTOR The Modbus connector is indicated as C in Figure 2-1: P485 electrical connections on page 2–2. This connector is used to connect the P485 to the serial network. Based on the configuration selected in the EnerVista P485/D485 Setup software, the corresponding signals are activated. 51 9 6 (female) Figure 2-6: Modbus connector Table 2–4: Modbus connector pin assignments Pin Description RS232 RS422 RS485 1 +5 V
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INSTALLATION Mechanical installation DIN-RAIL MOUNTING The DIN-rail connector is internally connected to the P485. 1 1 ON OFF 2 2 Figure 2-8: Mounting the P485 to the DIN-rail To snap the P485 on, first press the P485 downwards (1) to compress the spring on the DIN- rail connector, then push the P485 against the DIN-rail as to make it snap on (2) To snap the P485 off, push the P485 downwards (1) and pull it out from the DIN-rail (2), as to make it snap off from the DIN-rail. Indicators and swit
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INSTALLATION Table 2–5: P485 status indicators Number Description State Status 1 Profibus online Off Not online Green Online 2 Profibus offline Off Not offline Red Offline 3Not used - - 4Profibus Off No diagnostics present diagnostics Red, flashing 1 Hz Error in configuration Red, flashing 2 Hz Error in user parameter data Red, flashing 4 Hz Error in initialisation 5 Subnet status * Off Power off (Modbus) Green, flashing Initializing and not running Green Running Red Stopped or subnet error, or
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INSTALLATION For example, to set the node address to 42, set switch A to “2” and switch B to “4”. When removing the hatch, avoid touching the circuit boards and components. Exercise caution when using tools to open the hatch. NOTE Profibus installation procedure PROFIBUS Each device on a Profibus-DP network is associated with a GSD file, which contains all necessary information about the device. This file is used by the Profibus configuration tool CONFIGURATION TOOL during configuration of th
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INSTALLATION Troubleshooting DESCRIPTION Problem during configuration upload/download. The Config Line LED turns red. • Serial communication failed – try again. The serial port seems to be available, but it is not possible to connect to the P485. • The serial port may be in use by another application. Exit EnerVista P485/D485 Setup and close all other applications including the ones in the system tray and try again. • Select another serial port and try again. Poor performance. • Right click ‘Mo
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General data GE Consumer & Industrial P485 Modbus to Profibus Converter Chapter 3: Data exchange Data exchange Overview DESCRIPTION Data from the fieldbus (Profibus) and the sub network (Modbus) is stored in an internal memory buffer. This is a easy method for data exchange where the fieldbus control system simply reads and writes data to pre-defined memory locations, and the serial sub network also use the same internal memory buffer to read and write data. Refer to Figure 3-2: Data exchan
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DATA EXCHANGE PLC memory I/O inputs I/O outputs Current Ia CT PRIMARY The PLC exchanges data The PLC exchanges data via the Profibus network via the Profibus network between its internal input between its internal output area and the input area area and the output area of the P485 of the P485 Profibus network Internal memory buffer of the P485 Input data area Output data area General data area 0x0000 0x0200 0x0400 Current Ia CT PRIMARY The data in the input area of The data in the output area of
