VPA.5030.011 Remote i/o module User Manual © 2015 VPInstruments MAN-VP-A011-UK-1500 Date:21-07-2015 www.vpinstruments.com VPA.5030.011 Remote i/o module User Manual © 2015 VPInstruments All rights reserved. No parts of this work may be reproduced in any form or by any means - graphic, electronic, or mechanical, including photocopying, recording, taping, or information storage and retrieval systems - without the written permission of the publisher. Products that are referred to in this document may be either trademarks and/or registered trademarks of the respective owners. The publisher and the author make no claim to these trademarks. While every precaution has been taken in the preparation of this document, the publisher and the author assume no responsibility for errors or omissions, or for damages resulting from the use of information contained in this document or from the use of programs and source code that may accompany it. 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Creation date: 21-07-2015 in (Delft) Publisher VPInstruments Delft, The Netherlands This document is available in: English, English (UK) www.vpinstruments.com/download Contents 3 Table of Contents 1 Warning - Read this first 4 2 Introduction 5 1 Usage ................................................................................................................................... 5 3 Quick start 6 4 Hardware installation 7 5 Electrical installation 8 6 Apendix 9 1 Modbus networks 2 Cabling ................................................................................................................................... 9 ................................................................................................................................... 10 3 4 1 VPA.5030.011 Remote i/o module User Manual Warning - Read this first Read and understand user manuals of all equipment involved before commencing installation or use. All electrical installations to be carried out by authorized electrical installation engineers only. WARNING: 100...250 VAC mains cables are present in the housing. Do not touch the cables and thte power s upply when mains is applied. Keep the housing closed during normal operation. Check the cable glands on water tightness. Make sure that the ambient temperature does not exceed the limits. Overheating might cause temporary shutdown or permanent failure of the hardware. Feedback leads to product improvement. Please share your experience with us, as we are continuously improving our products in our commitment to quality, reliability and ease of use. Let us know via sales@vpinstruments.com! © 2015 VPInstruments | MAN-VP-A011-UK | Revision:1500 | Date:21-07-2015 Warning - Read this first 2 5 Introduction Thank you for choosing VPInstruments! This remote i/o module has been developed with the VPVision monitoring system in mind. VPInstruments developed a series of remote i/o modules to scale your system. 4 models are available: VPA.5030.011 Power supply VPA.5030.111 Power supply VPA.5030.211 Power supply VPA.5030.311 Power supply Ethernet converter module for Modbus extension module with Modbus to Ethernet converter module with 8ch analog to Ethernet converter module with 8ch analog to Ethernet converter and Modbus to About this manual We have written this manual to help you to get the i/o module up and running in no time. There are some steps that require basic knowledge about IT systems and networks. This is where you should get support of your IT department. Basic components: Enclosure Circuit breaker Power supply Modbus screw terminal 2.1 Usage VPVision can connect upto 8 Modbus sensors. All sensors are connected to 1 COM port. 3 additional COM ports are available for extension. The power and communication speed is limited to 8 sensors per COM port. Therefore an additional COM port needs to be used. The VPA.5030.011 can be used to supply additional power to the sensors and to split the Modbus signal for connection to 1 of the 3 available COM ports on the VPVision_M. The remote i/o module can be placed directly next to the VPVision_M unit, or further away. The maximum Modbus length from VPVision_M to the last Modbus sensor may not exceed 1200 meters. © 2015 VPInstruments | MAN-VP-A011-UK | Revision:1500 | Date:21-07-2015 6 3 VPA.5030.011 Remote i/o module User Manual Quick start Step 1. Mount the VPVision cabinet Unpack the box. Open the cabinet with the screwdriver. Check if all DIN Rail mounted equipment is still in place. If not, please fix the modules on the DIN Rail. Installation by certified professionals only. Mount the cabinet on a wall and establish the required mains power connection. Read more about hardware installation here. Step 2. Connect the Modbus sensors Connect the daisy chain with sensors to the screw terminal. See electrical installation. Step 3. Connect the Master Connect the other side of the Modbus terminal to the Modbus master. This can be a PLC or the VPVision_M computer. Step 4. Apply power Enable the circuit breaker to power up the Modbus sensors. You are ready to retrieve data from your sensors! © 2015 VPInstruments | MAN-VP-A011-UK | Revision:1500 | Date:21-07-2015 Quick start 4 7 Hardware installation Warning: Installation involves connection to mains. Installation of field cables requires indepth knowledge and skills. Therefore all steps that involve electrical installation should be carried out by certified installation professionals. Make sure that the ambient temperature does not exceed the limits of the cabinet (min: -20 deg C | -4 deg F max: 40 deg C | 104 deg F). Higher ambient temperature requires cabinet cooling. Each cabinet consists of the following components: 1. Circuit breaker 2. Main power supply, 24 VDC, 100 Watt. 3. RS485 connection terminal (fused separately) with front cable entry. Installation procedure 1. Remove the four screws and lift the cover 2. Take out the cable glands and mount them into the 3 screw holes 3. Hold the box at the preferred position on the wall and mark the four installation holes with a pencil 4. Lay the box aside and drill the marked points 5. Insert a jack in each hole 6. Hold the box in front of the drilled holes and screw it through the connection holes to the wall Housing Construction: Outer dimensions: Weight: Temperature: IP65 ABS enclosure 300 x 200 x 132 mm | 11.81"x 7.87" x 5.19" 2.5 kg | 5.51 lbs -20 ~ 40 deg C | -4 ~ 104 deg F © 2015 VPInstruments | MAN-VP-A011-UK | Revision:1500 | Date:21-07-2015 8 5 VPA.5030.011 Remote i/o module User Manual Electrical installation Warning: Installation involves connection to mains. Installation of field cables requires indepth knowledge and skills. Therefore all steps that involve electrical installation should be carried out by certified installation professionals. Check if the earth wire (field ground) is free of interference and potential dangerous high voltage. Make sure the circuit breaker is in off position. Then install the L, N and Earth wire. The L, N and Earth may have a different color, depending on your local legislation and directives for medium voltage systems. Scheme Installation procedure 1. Connect the mains cable to the circuit breaker 2. Connect the daisy chain of Modbus sensors to the screw terminal block 3. Connect the Modbus terminal block to a Modbus master module like VPVision 4. Switch on the circuit breaker to apply power to the sensors Modbus connection A daisy chain with Modbus sensors can be connected to the screw terminal block. Up to 8 sensors can be connected when attached to a VPVision system. For other systems, the maximum drawn power needs to be calculated. This may not exceed 4A. Take into consideration that power drops may appear in longer cables. Shielded twisted pair cabling should be used for the daisy chain. See Cabling for more information. Connecting to the master The Modbus a, Modbus b and Earth wire needs to be connected to the Modbus master. Use shielded twisted pair for connection between the cabinet and the master module. Make sure that the earth wire is connected properly. © 2015 VPInstruments | MAN-VP-A011-UK | Revision:1500 | Date:21-07-2015 Electrical installation 6 Apendix 6.1 Modbus networks 9 Introduction to Modbus Modbus is a messaging structure developed by Modicon in 1979. It purpose is master-slave/ clientserver communication between intelligent devices. It is a de facto standard, truly open and the most widely used network protocol in the industrial manufacturing environment. The Modbus protocol provides an industry standard method that Modbus devices use for parsing messages. For more information see modbus.org. How does it work? Modbus communication is called "Master-slave" communication: The master can initiate transactions (called queries). The slaves respond to the master, take the action requested in the query. A slave is any peripheral device (I/O transducer, valve, network drive, or other measuring device) which processes information and sends its output to the master. Masters can address individual slaves, or can initiate a broadcast message to all slaves. Slaves return a response to all queries addressed to them individually, but do not respond to broadcast queries. Register map Modbus devices usually include a Register Map (Point Map). You should refer to the register map for your device to gain a better understanding of its operation. The available options and registers of the point map are device-dependent. A simple sensor might have only one register, while a multi parameter sensor might have ten or more registers. Communication modes Standard Modbus networks employ one of two types of transmission modes: ASCII Mode and RTU Mode. The mode of transmission is usually selected along with other serial port communication parameters (baud rate, parity, etc.) as part of the device configuration. Just remember: VPFlowScope: RTU mode Pin layout: A aka '- ' aka TxD-/RxD- aka inverting pin B aka '+' aka TxD+/RxD+ aka non-inverting pin SC aka G aka reference pin ALWAYS use the SC/ Ground reference! Without reference, Modbus networks might work for a while but eventually, you could run into communication issues due to capacitive effects or electromagnetic interference. © 2015 VPInstruments | MAN-VP-A011-UK | Revision:1500 | Date:21-07-2015 10 6.2 VPA.5030.011 Remote i/o module User Manual Cabling All electrical installations to be carried out by authorized electrical installation engineers only. Ethernet For Ethernet, Cat5e cable with 4 twisted pairs must be used. For some applications, a higher quality cable might be needed. In case of any doubt, It is best to consult the site on their existing cables to make sure that the VPVision cables match the prescribed standards. The cable should match the power budget of all connected sensors. Long cables will result in increased cable resistance, which might cause issues when not properly addressed. Cable example: Belden 7939A SHIELDED MULTIPAIR CABLE 4PR 300V LAN Category:Cat5e Cable Type:Shielded No. of Pairs:4 Conductor Size: 24AWG ~ stranding 7x32 RoHS Compliant: Yes http://www.belden.com/techdatas/english/7939A.pdf Recommended plug: *Special RJ45 plug required. See WWW.BELDEN.COM - Tools Connector Cross Reference. SENTINEL 111S08080090H34 RS485 Modbus For RS485 networks, cable with 2 shielded twisted pairs must be used. One pair will be used to power the connected sensors. The other pair will be used for Modbus data transfer. Make sure the shield is connected to the power supply side only. Cable example: Belden 8723 SHLD MULTIPR CABLE 2PR 300V Max current: 2.3A per conducter Cable Type:Shielded No. of Pairs:2 Conductor Size: 22 AWG ~ stranding 7x30 Conductor DC Resistance: 14.7 Ohm/1000ft RoHS Compliant: Yes http://www.belden.com/techdatas/english/8723.pdf Analog sensors For 4..20 mA based sensors, a single or double twisted pair cable can be used. The same cable as for Modbus can be used to connect these sensors. © 2015 VPInstruments | MAN-VP-A011-UK | Revision:1500 | Date:21-07-2015 11 Notes © 2015 VPInstruments www.vpinstruments.com Measure MAN-VP-A011-UK-1500 Date:21-07-2015 Monitor Manage