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Omron DEVICENET Operation Manual

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Cat. No. W267-E1-11
DeviceNet
OPERATION MANUAL

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  • Page 1 Cat. No. W267-E1-11 DeviceNet OPERATION MANUAL...
  • Page 2 DeviceNet Operation Manual Revised April 2008...
  • Page 4  OMRON, 1996 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission of OMRON.

  • Page 6: Table Of Contents

    SECTION 1 Introduction........
  • Page 7 viii...
  • Page 8 Please read this manual carefully and be sure you understand the information provided before attempting to install or operate the DeviceNet network. Be sure to read the precautions provided in the following section. The following manuals also cover information related to DeviceNet applications. Use the DeviceNet Operation Manual together with other required manuals.
  • Page 10 WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted. IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS...
  • Page 11 The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products: •...
  • Page 12 PERFORMANCE DATA Performance data given in this manual is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON's test conditions, and the users must correlate it to actual application requirements.
  • Page 14 Application Precautions ........

  • Page 15: Intended Audience

    Intended Audience Intended Audience This manual is intended for the following personnel, who must also have knowledge of electrical systems (an electrical engineer or the equivalent). • Personnel in charge of purchasing FA systems. • Personnel in charge of designing FA systems.

  • Page 16: General Precautions

    !WARNING It is extremely important that a PLC and all PLC Units be used for the speci- fied purpose and under the specified conditions, especially in applications that can directly or indirectly affect human life. You must consult with your OMRON representative before applying a PLC system to the above mentioned applica- tions.

  • Page 17: Safety Precautions

    Output Units or the data allocated to Spe- cial I/O Units or CPU Bus Units. It is possible for a load connected to an Out- put Unit, Special I/O Unit, or CPU Bus Unit to operate unexpectedly.
  • Page 18 Safety Precautions !Caution Confirm safety at the destination node before transferring or changing the pro- gram, PLC Setup, I/O table, or I/O memory in another node. Changing data in another node without confirming safety may cause unexpected operation and result in injury.

  • Page 19: Operating Environment Precautions

    • Locations subject to direct sunlight. • Locations subject to temperatures or humidity outside the range specified in the specifications. • Locations subject to condensation as the result of severe changes in tem- perature. • Locations subject to corrosive or flammable gases.

  • Page 20: Application Precautions

    • Always ground the system to 100 Ω or less when installing the system to protect against electrical shock. • Make sure that the Unit is securely mounted, either to the DIN Track or by screws. • Always turn OFF the communications power supply and the power sup- plies to the PLC and Slaves before attempting any of the following.
  • Page 21 • Make sure that the communications cable connectors and other items with locking devices are properly locked into place. • Do not drop the Unit or subject it to abnormal vibration or impact, or it may result in damage or malfunctioning.

  • Page 22: Introduction

    DeviceNet Network Features ........

  • Page 23: Devicenet Network Features

    DeviceNet Network Features Section 1-1 DeviceNet Network Features DeviceNet is an open field network that can easily connect a variety of control devices such as PLCs, personal computers, sensors, and actuators. The DeviceNet network not only reduces wiring and maintenance costs because it requires less wiring, it also allows DeviceNet-compatible devices from different manufacturers to be connected.

  • Page 24: Remote I/O Communications And Message Communications

    Since device profiles are defined in DeviceNet, devices are compatible and replaceable even in a multi-vendor environment. It is possible to set each device's parameters and monitor operation easily from the Configurator based on the device's profile data. OMRON Master Unit...

  • Page 25: Devicenet-Compatible Devices

    CVM1-DRM21-V1 CPU or Expansion CPU Master func- Rack (Classified as CPU tion only Bus Units) CS Series C200HW-DRM21-V1 CPU Rack or Expansion I/O Rack (Classified as Special C200HZ/HX/HG/HE 10 or 16 I/O Units) C200HS 1-2-2 DeviceNet Functions of OMRON Master Units...
  • Page 26 Master Model Without Configurator With Configurator Max. No. of I/O CS Series CS1W-DRM21(-V1) 100 input words x 2/100 output words x 1 points per Slave con- CJ Series CJ1W-DRM21 trollable by Master CVM1, CV Series CVM1-DRM21-V1 32 input/32 output words...
  • Page 27 CS Series, C200HW-DRM21-V1 None None IOWR C200HX/HG/HE C200HS Item Master model Model Capacity Max. No. of nodes per Master for CS Series CS1W-DRM21(-V1) 63 nodes message communications using CJ Series CJ1W-DRM21 FINS commands CVM1, CV Series CVM1-DRM21-V1 8 nodes CS Series,...

  • Page 28: Types Of Slaves

    Refer to the DeviceNet MULTIPLE I/O TERMINAL Operation Manual (W348) for more details on the MULTIPLE I/O TERMINAL Slaves. General-purpose Slaves Slaves with I/O functions for 32 or fewer inputs and 32 or fewer outputs. Environment-resistive Slave with I/O functions for I/O that uses a round, waterproof connector con- Slaves nected to a communications cable.
  • Page 29 Communi- Remarks cations cable Remote I/O 32 input points (NPN) DRT1-ID32ML Normal Compact (35 x 60 x 80 mm Terminals with square con- (W x D x H)) 32 input points (PNP) DRT1-ID32ML-1 Transistors nectors Connects to a Relay Termi-...
  • Page 30 (NPN) 8 input points+8 output DRT1-MD16C-1 points (PNP) B7AC Inter- 10 input points x 3 DRT1-B7AC Splits 1 B7AC Unit into 3 face Terminal branches. XS2 Series connector sys- tem eliminates the need for tools. Spatter, dust and drip-proof...
  • Page 31 (32 words) message communications 512 outputs max. (32 between PLCs. words) Max. I/O area: 512 input points and 52 output points Any I/O words can be allo- cated. RS-232C Unit 16 inputs (1 word) DRT1-232C2 Two RS-232C ports mounted Data sent and received by explicit message (151 bytes max.)
  • Page 32 DRT2-OD08 8 output points (PNP) DRT2-OD08-1 16 input points (NPN) DRT2-ID16 16 input points (PNP) DRT2-ID16-1 16 output points (NPN) DRT2-OD16 16 output points (PNP) DRT2-OD16-1 8 input points/8 output DRT2-MD16 points (NPN) 8 input points/8 output DRT2-MD16-1 points (PNP)
  • Page 33 DRT2-ID32ML Connects to relay ter- nals with Transistors minal using MIL cable. 32 input points (PNP) DRT2-ID32ML-1 32 output points (NPN) DRT2-OD32ML 32 output points (PNP) DRT2-OD32ML-1 16 input points/16 out- DRT2-MD32ML put points (NPN) 16 input points/16 out- DRT2-MD32ML-1...
  • Page 34 4 input points DRT2-AD04 Terminal block mounted/ removed using screws. (0 to 5 V, 1 to 5 V, 0 to 10 V, −10 to 10 V, 0 to The DRT2-AD04H is a High- 20 mA, 4 to 20 mA) resolute Terminal (1/30,000 FS).
  • Page 35 Remarks Temperature Input 4 input points DRT2-TS04T Thermocouple input Terminals (Switchable between R, S, K1, K2, J1, J1, T, E, B, N, L1, L2, U, W, and PL2.) 4 input points DRT2-TS04P Platinum resistance ther- mometer input (Switchable between PT,...
  • Page 36 DeviceNet-compatible Devices Section 1-2 1-2-3-3 MULTIPLE I/O TERMINAL Units Unit Words allocated in I/O connec- Unit Instal- Model Remarks points PLC memory tions power lation number supply Input Output voltage Communications None Two sta- 0 words None 24 V DC...
  • Page 37 One I/O Unit Connecting Cable (cable length 40 mm) is included with each I/O Unit. One end connector is attached to the Communications Unit. I/O Unit Connecting Cables with a cable lengths of 0.1, 0.3, 0.4, 0.6, and 1 m (GCN1-010/030/040/060/100) are sold separately (see below).

  • Page 38: Communications Specifications

    DeviceNet Configurator The Configurator is a software configuration tool for the DeviceNet network. The Configurator can be used to set parameters (the scan list) and monitor operation in OMRON Master Units. The Configurator can also be used to set parameters in OMRON and other companies’ Slaves.

  • Page 39: Basic Operating Procedures

    Construct the network using recommended wiring and noise-control tech- niques. • Refer to 2-4 Wiring Methods for details on wiring. • Refer to 2-5 Minimizing Noise in the Network for details on noise-con- trol techniques. • Refer to 2-2 Network Configuration the Network Configuration for other precautions.
  • Page 40 Basic Operating Procedures Section 1-4 Note 1. All three power supplies can be turned ON simultaneously. It is also ac- ceptable to turn ON the communications and Slave power supplies or the Slave and PLC power supplies simultaneously. 2. Slaves may not be recognized if the communications power supply is turned ON after the Slave power supply.
  • Page 41 Basic Operating Procedures Section 1-4...

  • Page 42: Network Configuration And Wiring

    Compatible Cables ........

  • Page 43: Network Configuration Overview

    Network Configuration Overview Section 2-1 Network Configuration Overview 2-1-1 Network Configuration The DeviceNet Network can be configured as shown in the following dia- grams. Network with General-purpose Slaves Only Connect Connect terminators terminators at Use DeviceNet at both ends of the...
  • Page 44 Node Node connections (DCN4-SF4D) (DCN4-SF4D) Environment- resistive Slave Network with General-purpose Slaves Using Special Thin Cable for Trunk Line and Flat Cable for Branch Lines Connect terminators at both Use Special Thin Connect terminators at both Communications Cable. ends of the trunk line.
  • Page 45 Always connect Terminating Resistors at both ends of the network to reduce (Terminators) signal reflection and stabilize communications. The cable that stretches from one terminator to the other is the trunk line. Determine which cable will be the trunk line based on the network’s configuration. Trunk...

  • Page 46: Example Network Configuration

    Node Node Secondary branches can be made from a branch line. There is no limit on the number of T-branch Taps and multi-drop connections in the network. Note Both of these connection methods can be used in the same Network, as shown in the example above.

  • Page 47: Network Configuration Restrictions

    Maximum network length: 100 m when baud rate is 500 kbps (When thick cable is used, the network length can be up to 250 m max. with a 250 kbps baud rate or 500 m max. with a 125 kbps baud rate.) Current capacity...
  • Page 48 (Total branch line length) = (1) + (2) + (3) + (4) + (5) + (6) + (7) + (8) + (9) + (10) + (11) + (12) + (13) = 2 + 3 + 1 + 2 + 2 + 6 + 2 + 2 + 1 + 1 + 6 + 6 + 6 = 40 m...

  • Page 49: Connections

    Network Configuration Overview Section 2-1 rent consumption of the nodes in the branch is less than 4.57/L or 3 A, which- ever is lower. Refer to SECTION 3 Communications Power Supply Methods for more details. Note 1. Always use DeviceNet cables.
  • Page 50 Network Configuration Overview Section 2-1 nodes that can be connected onto a single branch line, except for the limit on the total number of nodes (63 max.) in the network. Communications power supply 24 VDC T-branch Tap T-branch Tap Trunk line...

  • Page 51: Detailed Connection Patterns

    Female COMBICON Connector Male Branch line General-purpose Slave, Environment-resistive Slave Special Slave, or Master Node Node Node Note The cables with a shielded connector on one or both ends have a round com- munications connector on one or both ends.
  • Page 52 Use a separate power supply for DeviceNet communications. The power sup- ply can be shared, however, if noise interference is not generated by the inter- nal circuit power supply, Sensor power supply, or other source.

  • Page 53: Network Configuration

    T-branch Note 1. Connect a Terminating Resistor to the Tap when there is a T-branch Tap or Power Supply Tap at the end of the trunk line. 2. The Terminal-block Terminating Resistor method can be used when a node is connected at the end of the trunk line with the multi-drop connec- tion method.

  • Page 54: Trunk Lines And Branch Lines

    The DeviceNet network is made up of a trunk line and branch lines. The trunk Branch Lines line is the main line in the network and it is terminated at both ends by Termi- nating Resistors. Thick, thin, and flat cable can be used for both trunk and branch lines.
  • Page 55 I/O communications errors and transmission timeouts. Total Branch Line Length The total branch line length is the sum of the lengths of all branch lines in the network. The maximum total branch line length depends upon the baud rate, as shown in the following table.
  • Page 56 6 m and the total branch line length does not exceed 39 m (with a baud rate of 500 kbps.) A common cause of long branch lines and excessive total branch line length is using a straight trunk line, as shown in the following diagram.
  • Page 57 Trunk line Branch line T-branch Tap Selecting the Trunk Line We recommend identifying the trunk line based on the control panels, such as the line between control panels or the line within a control panel. Sub-panel Sub-panel Branch line...

  • Page 58: Proper Cable Usage

    In the trunk line, the cable current capacity (max. current allowed in the ca- ble) is 3 A for thin cable and 8 A for thick cable. Consequently, thick cable can provide a significantly higher current when the communications power supply is being supplied through a Power Supply Tap.
  • Page 59 125 kbps OK THICK THIN The results of the above formulae indicate that 250 kbps and 125 kbps can be used as the baud rates for this configuration example. Even when the above conditions are met, however, the current flowing through the cables must not exceed the permissible current capacity.

  • Page 60: Determining The Location Of The Master

    2-2-4 Determining the Location of the Master It is not necessary to locate the Master at the end of the network. The Master can be located at any node position on the trunk line or a branch line. Configure the network as desired, since there is no restriction on the Master’s location.

  • Page 61: T-Branch Tap Connections

    A Terminating Resistor (commonly known as a terminator) is a resistor con- Resistor? nected to the end of the trunk line to absorb the signals sent through the net- work, dissipating the signals as heat and preventing them from bouncing back into the network.

  • Page 62: Using Crimp Terminals

    • A normal resistance reading is 50 to 70 Ω . • If the resistance is greater than 70 Ω , there may be a broken signal line in the network or one or both Terminating Resistors may be missing.

  • Page 63: 2-2-10 Grounding Methods

    Incorrect Note The low voltage limit for the internal circuit power supply is higher than the low voltage limit for the communications power supply. To meet the voltage speci- fications for the internal circuit power supply, be sure to follow the specifica- tions listed in SECTION 3 Communications Power Supply Methods.

  • Page 64: Cables, Connectors, And Related Devices

    2. Always use a separate ground. Never use the same ground that is used for inverters or other drive system devices. 3. If a good ground of 100 Ω or less is not available, do not connect the com- munication power supply’s FG and V- terminals because the ground may introduce noise into the network.
  • Page 65 (Male) end (Plug: DCA2-5CN10H1 Length: 10 m Male) Dimensions: 10.16 × 2.54 mm Flat Cable DCA4-4F10 Length: 100 m Note OMRON provides Flat Cable in 100-m lengths. Ask you OMRON representa- tive if you need a different length.
  • Page 66 At 250 kbps: 150 m At 250 kbps: 48 m At 125 kbps: 265 m At 125 kbps: 135 m Note Thin cable includes the cables with shielded connectors attached. 11.2 mm to 12.1 mm 6.9 mm outside diameter outside diameter...
  • Page 67 Note The ground may introduce noise into the network if a poor quality ground is used and the FG terminal is connected to the V- terminal. If a good ground of 100 Ω or less is not available, do not connect the communication power sup- ply’s FG and V- terminals.
  • Page 68 6.9 Ω/1,000 ft Conductor resistance Maximum current 2.54 × 10.16 mm Finished outer diameter Note There are a variety of DeviceNet cables available, such as cables for moving applications. For more details, refer to the homepage of the ODVA at http:// www.odva.org/.

  • Page 69: Connectors For Node Connections

    Cables, Connectors, and Related Devices Section 2-3 2-3-2 Connectors for Node Connections Standard Connectors The following table shows the standard connectors provided with Masters, Slaves, and T-branch Taps. Name Model Specifications Remarks Straight Connector with Attachment XW4B-05C1-H1-D Straight connector with...
  • Page 70 Cables, Connectors, and Related Devices Section 2-3 Note The following Units include a Straight Connector without Screws. 3G8B3-DRM21 DRT1-ID08(-1) DRT1-ID16X(-1) DRT1-OD08(-1) DRT1-OD16X(-1) 3G8E2-DRM21 DRT1-ID16(-1) DRT1-HD16S DRT1-OD16(-1) DRT1-ND16S DRT1-MD16 Use a straight connector when Use a right-angle connector when wiring space is available.
  • Page 71 Mini-size tor or an Environment-resistive 10 m Slave. (Primarily used in the trunk line.) Mini-size Thick cable with a shielded, mini-size female DCA2-5CN@@F1 Used to connect to a T-branch Con- connector (socket) on one end nector or Environment-resistive Slave. Thick cable (Primarily used in the trunk line.)
  • Page 72 Cables, Connectors, and Related Devices Section 2-3 Multi-drop The following table shows connectors that can be used for multi-drop connec- Connectors tions. These connectors are not supplied with OMRON products, but must be ordered separately. Since these connectors cannot be used with all DeviceNet devices, check that the connector is compatible before ordering.

  • Page 73: Screwdrivers For Connector Screws

    Taps that provide different wiring directions and connector insertion directions. Note 1. A T-branch Tap cannot be used to create a T-branch in a Network that has cables with shielded connectors. In this case, a T-branch Connector must be used. Refer to 2-3-5 Shielded T-branch Connectors for details.
  • Page 74 Cables, Connectors, and Related Devices Section 2-3 T-branch Taps Branches Model Number of Connectors provided Wiring Insertion Set screw Terminating connectors direction direction access Resistance Single- DCN1-1NC 3 connectors XW4G-05C1-H1-D From top From top From top Can be branch (for 1 branch)
  • Page 75 Cables, Connectors, and Related Devices Section 2-3 Cable Wiring Direction and Connector Insertion Direction DCN1-2C/4C DCN1-1C/3C Wiring direction Wiring direction Insertion Insertion direction direction DCN1-2R/4R Insertion direction Wiring direction...
  • Page 76 Use when screwing the T-branch Tap to a control panel. ON/OFF switch DIN Track mounting hook Use when mounting the Tap to a DIN Track. A trunk line is usually connected here. DCN1-1C T-branch Tap Components Communications Connectors Connect the network communications cable to the provided XW4B- 05C1-H1-D Straight Connectors.
  • Page 77 Cables, Connectors, and Related Devices Section 2-3 DCN1-2C and DCN1-2R T-branch Tap Components Communications Connectors Connect the network communications cable. The following connectors are provided. DCN1-2C: XW4B-05C1-H1-D Straight Connector with attachment screws DCN1-2R: XW4B-05C1-VIR-D Right-angle Connector with attachment screws Mounting screw holes Use when screwing the T-branch Tap to a control panel.

  • Page 78: Shielded T-Branch Connectors

    Note 1. If the T-branch Connector is at the end of the trunk line, the trunk line can be terminated by connecting a shielded connector with Terminating Resis- tance. (Male plug and female socket terminators are available.) 2.
  • Page 79 Cables, Connectors, and Related Devices Section 2-3 Connector (using a shielded cable with a connector on one end) instead of a Power Supply Tap. Model Remarks DCN2-1 Shielded T-branch Connector (1 branch) with 3 micro-size (M12) con- nectors Maximum current: 3 A...

  • Page 80: Power Supply Tap

    2. When the Power Supply Tap is connected to thin cable, the current capac- ity is limited to 3 A through any one of the thin cables. If two thin cables are connected, 3 A can be supplied to each cable for a total of 6 A.

  • Page 81: Terminating Resistors

    In a DeviceNet Network, one Terminating Resistor must be connected to each end of the trunk line. If a Unit is at the end of the trunk line, connect one of the Terminating Resistors listed in the following table because the Units do not have built-in terminators.

  • Page 82: Communications Power Supply

    In a DeviceNet system, a 24-V DC communications power supply must be supplied to the Network. The communications power supply must meet the specifications listed in the following table and the AC inputs and DC outputs must be isolated. The OMRON S82J-series and S82K-series Power Supply Units are recom- mended.

  • Page 83: Wiring Methods

    Surge current capacity 10% max. Note The current capacity of thick cable is 8 A, so up to 16 A can be supplied to the network by supplying communications power in two directions from the power supply through thick cables.
  • Page 84 Power lines AI 2.5-8BU AI 2.5-10BU AI 2.5-10BU 5. Cover the end of the cable with electrical tape or heat-shrink tubing as shown in the following diagram. Electrical tape or heat-shrink tubing 6. Check that the connector is oriented correctly and the wire set screws are loose enough to insert the wires.
  • Page 85 Note (a) Be sure that the wire set screws are sufficiently loosened before attempting to insert the lines. If these screws are not loose, the wires will go into the space in the back of the connector and can- not be locked with the set screws.
  • Page 86 Wiring Methods Section 2-4 When using thick cable, provide some slack in the cable so that the con- nectors do not pull out because of tension on the cable. Slotted screwdriver that does not taper at the tip Note The OMRON XW4Z-00C and PHOENIX CONTACT SZF-1 screwdrivers are suitable for tightening the DeviceNet connector’s set screws.
  • Page 87 5. Tighten all set screws firmly. Tighten signal lines, power lines, and shield- ing wire to a torque of 0.5 to 0.6 N ⋅ m. Tighten connector screws to a torque of 0.4 to 0.5 N ⋅ m. 6. Wire the signal lines, power lines, and shielding wire so that they do not become disconnected during communications.

  • Page 88: Attaching Flat Cable Connectors

    1. Cut the cable. Cut the cable perpendicular to the length. To prevent short-circuits, cut the cable with a sharp tool, such as wire cut- ters, and make sure that no whiskers are left on the wires. 2. Attach the cable.

  • Page 89: Attaching Shielded Connectors

    5. Tighten the contact block’s line set screws on each of the lines. Tighten the set screws to a torque of between 0.15 and 0.2 N ⋅ m using a special screw- driver.

  • Page 90: Connecting To T-Branch Taps And Nodes

    7. Tighten the cover lock so that the contact block and cover are firmly joined. Tighten to a torque of between 0.39 and 0.49 N ⋅ m.

  • Page 91: Flat Cable I (Standard)

    Cutting the Cable (when Extending Cable or Connecting Terminating Resistance) Cut the cable perpendicular to the length. To prevent short-circuits, cut the cable with a sharp blade, such as wire cut- ters, and be sure that there are no whiskers on the wires. ■...
  • Page 92 Attaching the Cable T-branch Connections 1,2,3... 1. Align the cable labels and cable colors and insert the cable into the cover. 2. Hold the cable and secure it with the hooks. Line Extensions and Terminating Resistance Insert the cable end all the way into a cover with the cable stopper already set.
  • Page 93 Wiring Methods Section 2-4 1,2,3... 1. As shown below, align the center (see arrows) of the connector cover with the center of the pressure-welding block on the Pliers. Pliers Connector cover 2. Squeeze firmly on the Pliers until the lock on the connector clicks into place.
  • Page 94 ■ Attaching the Cable Align the cable labels and cable colors and insert the cable. Confirm that the cable is inserted all the way to the back. (The cover is semi- transparent.) Insert the cable to this point. ■...
  • Page 95 2. Carefully peel back the woven shield. There is a bare shield wire under the woven shield as well as the signal lines and power lines. (The shield wire will be loose on the outside of the other lines, but it is stiffer than the woven shield and easy to identify by touch.) Shield wire 3.
  • Page 96 Attaching the Cable Align the indications on the cable identification label with the cable colors and insert the cable. The cover is translucent, so it is possible to confirm that the cable has been inserted all the way in. Confirm that the cable has been inserted up to this position.

  • Page 97: Connecting Shielded (Environment-Resistive) Cables

    Note (1) The maximum current is 5 A for a T-branch Tap and 8 A for a T-branch Connector (3 A through a micro-size connector). Determine the current consumption for all nodes in both directions. (2) A DCN2-1 T-branch Connector (for thin cable only) cannot be used be- cause the maximum current is 3 A.
  • Page 98 Connect the communications power supply lines (V+ and V − wires) to the V+ (red) wire and V − (black) wire of a communications cable connected to the T- branch Connector, as shown in the following diagram. This example shows a DCN2-1 T-branch Connector, but the connection method is the same for other T-branch Connectors.

  • Page 99: Connecting The Terminating Resistors (Terminators)

    T-branch Connectors only. Tighten the Terminators securely by hand. Tighten a Micro-size Terminator to a torque of between 0.39 and 0.49 N ⋅ m. Tighten a Mini-size Terminator to a torque of between 0.7 and 0.8 N ⋅ m.
  • Page 100 Branch line Connecting to a Terminal Block When a node is connected directly to the end of the trunk line and there isn’t enough space to connect a T-branch Tap, a Terminal-block Terminating Resis- tor can be connected with a multi-drop.

  • Page 101: Grounding The Network

    Flat Cable Terminal Block with Terminating Resistance. 2-4-9 Grounding the Network Use any of the following methods to ground the network. The DeviceNet net- work must be grounded at one location and one location only. Grounding the Shield (S) Terminal of a Power Supply Tap...
  • Page 102 2. When an acceptable ground of 100 Ω max. is available, connect the com- munications power supply’s V- and FG terminals. 3. When an acceptable ground of 100 Ω max. is not available, do not connect the communications power supply’s V- and FG terminals. In this case, con-...

  • Page 103: Minimizing Noise In The Network

    Ground (100 Ω max.) • Make the power supply lines to the control panel as short as possible, use heavy-gauge wire, and ground the power supply properly (100 Ω max.) • Avoid installing any DeviceNet devices in a control panel that contains high-voltage devices.
  • Page 104 • Ground the communications cable to 100 Ω max. with a ground wire that is as short as possible. • Ground the shielding wire on the communications cable at one point. If...

  • Page 105: Correcting Malfunctions Due To Noise

    2-5-2 Correcting Malfunctions due to Noise When noise is thought to be the cause of a malfunction in the DeviceNet net- work, the following countermeasures may be effective. Problems with the Isolate the communications cable shielding wire by disconnecting it from the Communications ground.

  • Page 106: Operational Checklist

    Has the power supply requirement been calculated using communications capacity each node's current consumption? power supply Can the power supply handle the inrush current when the sys- tem is started? Isolation Is the DC output isolated from the AC input in the power sup- ply?
  • Page 107 Operational Checklist Section 2-6...

  • Page 108: Communications Power Supply Methods

    Locating the Power Supply ........

  • Page 109: Basic Concepts

    Connector. Refer to 2-3-4 T-branch Taps or 2-3-5 Shielded T-branch Con- nectors for details on the current limitations of these components. • The power supply capacity for cables is restricted to 8 A for Thick Cables, 3 A for Thin Cables, and 5 A for Flat Cables.

  • Page 110: Flowchart: Determining Power Supply Requirements

    3-2-1 Communications Power Supply Use the flow chart below to determine the appropriate method for supplying the communications power supply on the trunk line. The current in each branch line must not exceed the maximum value calculated with the equation on page 88.

  • Page 111: Locating The Power Supply

    3-3-1 Power Supply Layout Patterns The power supply can be set up in the configurations shown below. In gen- eral, select either configuration 1 or 2 (a single power supply configuration.) Use configuration when power supply requirements cannot be met with con- figuration 1 or 2.

  • Page 112: Main Factors For Determining The Power Supply Location

    Locating the Power Supply Section 3-3 Note If the current carried by a thick cable exceeds 8 A even after the power supply configuration has been changed, the power supply requirements cannot be met with a single power supply and multiple power supplies must be used.

  • Page 113: Step 1: Evaluating The Configuration With Graphs

    Step 1: Evaluating the Configuration with Graphs There is a voltage drop in a communications cable as current flows through the cable. The voltage drop increases in proportion to the length of the com- munications cable and the amperage of the current being carried.

  • Page 114: Simple Evaluation Of Power Supply Location From A Graph

    Simple Evaluation of Power Supply Location from a Graph Check items 1 to 3 listed below for all of the nodes located in the same direc- tion from the power supply. (If power is supplied in two directions, check these 3 items for all of the nodes in each direction.)
  • Page 115 In this example, the power supply is at one end of a Network with a total Power Supply at the length of 200 m of thick cable. The power supply is located on the end of the Network. The current consumption of the individual nodes is as follows:...
  • Page 116 Trunk line Power supply cable Total power supply length on left = Total power supply length on right = 120 m Total current consumption on left: 1.1 + 1.25 + 0.5 = 2.85 A Total current consumption on right: 0.25 + 0.25 + 0.85 = 1.35 A Maximum current on the left side (see table for thick cable) = approx.

  • Page 117: Step 2: Evaluating The Configuration With Calculations

    (+V or − V) is specified as 5 V based on the specified communications power supply voltage (24 V DC) and the input voltage of the communications power supply at each device (11 to 25 V DC). The evaluation in this step is based on the maximum 5 V voltage drop.

  • Page 118: Formulae For Calculating The Voltage Drop

    (23 V − 21 V) /2 = 1 V. The permissible voltage drop can be subdivided into the max. permissible voltage drop in the trunk line of 0.65 V and the max.

  • Page 119: Modifying The Configuration

    Pro- ceed to Step 3. Example Configuration 1 In this example, the power supply is at one end of the trunk line. The trunk line is thick cable and the branch lines are thin cable. Power...
  • Page 120 Group 4:(40 × 0.015 + 4 × 0.005) × 0.15 = 0.093 V Total voltage drop = 0.0039 + 0.0651 + 0.1395 + 0.093 = 0.3015 V ≤ 4.65 V In this case, formula 1 is satisfied, so the power supply can supply just the communications power.
  • Page 121 Step 2: Evaluating the Configuration with Calculations Section 3-5 Group 1:(20 × 0.015 + 2 × 0.005) × 0.885 = 0.2744 V Group 2:(10 × 0.015 + 1 × 0.005) × 1.1 = 0.1705 V Total voltage drop = 0.2744 + 0.1705 = 0.4449 V ≤ 0.65 V In this case, formula 2 is satisfied on the left side.

  • Page 122: Step 3: Splitting The System Into Multiple Power Supplies

    • When there are two or more power supplies in the network, Power Supply Taps must be used to connect the power supplies. • Remove a fuse in the Power Supply Tap to supply power to just one side and split the power supply system.
  • Page 123 Step 3: Splitting the System into Multiple Power Supplies Section 3-6...

  • Page 124: Connectable Device Lists

    For CJ-series PLCs CVM1-DRM21-V1 For CVM1 and CV-series PLCs C200HW-DRM21-V1 For CS-series, C200HX/HG/HE, and C200HS PLCs 3G8F7-DRM21 PCI Board 3G8B3-DRM21 VME Board Configurator Model Specifications WS02-CFDC1-E Configurator Software Version 2.@ 3G8E2-DRM21-V1 Configurator Software Version 2.@ (Included with the PCMCIA Card.)
  • Page 125 MIL Connector Terminal with 16 transistor inputs/16 transistor outputs (PNP) DRT2-ID32B Board MIL Connector Terminal with connector parallel to board and with 32 transistor inputs (NPN) DRT2-ID32B-1 Board MIL Connector Terminal with connector parallel to board and with 32 transistor inputs (PNP)
  • Page 126 Connectable Device Lists Appendix A Model Specifications DRT2-OD32B Board MIL Connector Terminal with connector parallel to board and with 32 transistor outputs (NPN) DRT2-OD32B-1 Board MIL Connector Terminal with connector parallel to board and with 32 transistor outputs (PNP) DRT2-MD32B...
  • Page 127 I/O Terminal with 16 transistor outputs (PNP), Three-tier Terminal Block type DRT1-MD16T I/O Terminal with 8 transistor inputs and 8 transistor outputs (NPN), Three-tier Terminal Block type DRT1-MD16T-1 I/O Terminal with 8 transistor inputs and 8 transistor outputs (PNP), Three-tier Terminal Block type...
  • Page 128 DRT2-series Environment-resistive Slaves Model Specifications DRT2-ID08C Environment-resistive Terminal with 8 transistor inputs (NPN), meets IEC IP67 standards DRT2-ID08C-1 Environment-resistive Terminal with 8 transistor inputs (PNP), meets IEC IP67 standards DRT2-HD16C Environment-resistive Terminal with 16 transistor inputs (NPN), meets IEC IP67 standards...
  • Page 129 DRT1-WD16C-1 Environment-resistive Terminal with 16 transistor outputs (PNP), meets IEC IP66 standards DRT1-MD16C Environment-resistive Terminal with 8 transistor inputs and 8 transistor outputs (NPN), meets IEC IP66 standards DRT1-MD16C-1 Environment-resistive Terminal with 8 transistor inputs and 8 transistor outputs (PNP), meets IEC...
  • Page 130 Analog Input Unit (terminal block) with 4 inputs (allocated 4 words) GT1-AD08MX Analog Input Unit (MOLEX connector) with 8 inputs (allocated 4 words) or 4 inputs (allocated 4 words) (Use the DIP switch to select 8 inputs or 4 inputs.)
  • Page 131 DCA1-5CN@@H1 Cable with shielded micro-size (M12) connector (male plug) on one end DCA1-5CN@@W5 Cable with shielded connector on both ends (male plug on mini-size end, female socket on micro- size end) DCA2-5CN@@W1 Cable with shielded mini-size connectors on both ends (female socket and male plug)
  • Page 132 DCA1-5CN@@W1 Thin cable with shielded, micro-size (M12) connec- Available cable lengths: tors on both ends for Environment-resistive Slave or 0.5 m, 1 m, 2 m, 3 m, 5 m, and 10 m shielded T-branch Connector (micro-size) connec- tions DCA1-5CN@@F1 Thin cable with shielded, micro-size (M12) female...
  • Page 133 Flat Cable Power Supply Terminal Block with Terminating Resistance (for Flat Cable), 121 Ω DCN4-TP4D In addition to the Terminating Resistors listed above, the trunk line can be terminated by installing a Terminat- ing Resistor (included with the Tap) into the socket of a T-branch Tap or Power Supply Tap.
  • Page 134 Shielded T-branch Connectors Model Specifications DCN2-1 Shielded T-branch Connector (1 branch) with 3 micro-size (M12) connectors DCN3-11 Shielded T-branch Connector (1 branch) with 3 mini-size connectors DCN3-12 Shielded T-branch Connector (1 branch) with 2 mini-size connectors and 1 micro-size (M12) con- nector...
  • Page 135 Power Supply Tap Model Specifications DCN1-1P The DCN1-1P is used to connect the communications power supply to the network. Includes two XW4B-05C1-H1-D Straight Connectors with attachment screws, a terminator, and two fuses. A Terminating Resistor (included) can be connected. Cable Connectors for Sensor Terminals...
  • Page 136 Cable with shielded, micro-size (M12) connectors on both ends (female socket on one end and male plug on the other) T Joint Model Specifications XS2R-D427-5 Use the Shielded T-branch Joint to branch a cable for the Environment-resistive Slave’s internal power supply. Y Joint Model Specifications XS2R-D426-@11F With cable Use with 16-input or 16-output Environment-resistive Terminals.
  • Page 137 40-pin connector on one end, plain wires (28 AWG) on the other end G79-A500C-D1 (5 m) G79-Y100C-D1 (1 m) 40-pin connector on one end, wires (28 AWG) with fork terminals attached on the other end G79-Y200C-D1 (2 m) Fork terminal model: 161071-M2...
  • Page 138 Item Model Specifications Socket XG5M-4032-N Compatible cable wire gauge: 24 AWG XG5M-4035-N Compatible cable wire gauge: 28 to 26 AWG Partial Cover XG5S-2001 Two required per connector. Hood Cover XG5S-5022 Cannot be used with multi-drop DeviceNet connectors. I/O Connecting Cables for MULTIPLE I/O TERMINAL Units...
  • Page 139 Model Unit connected G79-@@@C Connects a GT1-ID16ML to an I/O Block (G7TC-I@16). Connects a GT1-OD16ML to an I/O Block (G7TC-OC16, G7OD-SOC16, G7OD-FOM16, G7OA- ZOC16-3, or M7F). Connects a GT1-OD16ML-1 to an I/O Block (G7TC-OC16-1, G7OD-SOC16-1, G7OD-FOM16-1, G7OA-ZOC16-4, or M7F). G79-I@C-@ Connects a GT1-ID32ML or to an I/O Block (G7TC-I@16).

  • Page 140: Dimensions Of Connectable Devices

    Appendix B Dimensions of Connectable Devices Connectors for Node Connections XW4B-05C1-H1-D Straight Connector with Attachment Screws Black Blue Shield White Power supply connection All dimensions are in mm. 18.2 MSTB2.5/5-ST-5.08AU Straight Connector without Attachment Screws Black Blue Shield White Power supply connection 18.2...
  • Page 141 Dimensions of Connectable Devices Appendix B XW4G-05C1-H1-D Black Blue White Power supply connection All dimensions are in mm. XW4B-05C4-TF-D Straight Multi-drop Connector with Attachment Screws Black Black Blue Blue Shield Shield White White Power supply connection 21.5 All dimensions are in mm.
  • Page 142 Dimensions of Connectable Devices Appendix B XW4G-05C4-TF-D Black Blue White (6.9) Power supply connection (7.7) 16.7 All dimensions are in mm. DCN4-SF4D Flat Cable Connector 30.20 11.1 38.55 All dimensions are in mm.
  • Page 143 Dimensions of Connectable Devices Appendix B T-branch Taps DCN1-1NC T-branch Tap (Single Branch) 74.5 67.5 30.9 20.5 Mounting holes or taps Two, 3.5±0.1-dia. or M3 14.15±0.1 All dimensions are in mm. 74.5±0.1...
  • Page 144 DCN1-1 T-PORT TAP Mounting holes or taps Two, 3.5 dia. or M3 97±0.3 All dimensions are in mm. DCN1-2C and DCN1-2R T-branch Taps (Single Branches) DCN1-2 T-PORT TAP Mounting holes or taps Two, 3.5 dia. or M3 97±0.3 All dimensions are in mm.
  • Page 145 Dimensions of Connectable Devices Appendix B DCN1-3NC T-branch Tap (Three Branches) 30.9 20.5 Two, 3.5±0.1-dia. or M3 Mounting holes or taps 14±0.1 All dimensions are in mm. 97±0.1 DCN1-3C T-branch Tap (Three Branches) DCN1-3 T-PORT TAP Mounting holes or taps Two, 3.5 dia.
  • Page 146 Dimensions of Connectable Devices Appendix B DCN1-4C and DCN1-4R T-branch Taps (Three Branches) DCN1-4 T-PORT TAP Mounting holes or taps Two, 3.5 dia. or M3 142±0.3 All dimensions are in mm. T-branch Connectors DCN2-1 T-branch Connector (56) 4.5 dia. 17.7 24.7...
  • Page 147 Dimensions of Connectable Devices Appendix B DCN3-11 T-branch Connector 74.7 25.4 26 dia. D4N3-11 14.6 41.7 28.5 All dimensions are in mm. DCN3-12 T-branch Connector 74.7 26 dia. D4N3-12 14.6 37.6 5.5 dia. 25.4 28.5 All dimensions are in mm.
  • Page 148 Terminal Block (CN3) Socket (CN4) Connectors (CN1 and CN2) 45.3 30.9 29.9 20.5 Mounting holes or taps Two, 3.5 dia. or M3 14±0.3 All dimensions are in mm. 119.5±0.3 Flat Cable Connectors DCN4-TR4-1 Flat Connector Socket 17.8 30.7 All dimensions are in mm.
  • Page 149 Dimensions of Connectable Devices Appendix B DCN4-BR4 Flat Connector Plug DCN4-BR4D Thin Cable-Flat Cable Conversion Connector...
  • Page 150 : NC V− : NC CAN H 121 Ω All dimensions are in mm. CAN L Note The terminating resistance (121 Ω ) is connected across pins 4 and 5. DRS3-1 Shielded Mini-size Terminator 26 dia. 62.5 Wiring Name DRAIN...
  • Page 151 Dimensions of Connectable Devices Appendix B DCN4-TP4D Flat Cable Power Supply Terminal Block with Terminating Resistance 4.55 20.90 13.50 33.60 All dimensions are in mm.

  • Page 152: Current Consumption Of Devicenet Devices

    Appendix C Current Consumption of DeviceNet Devices Master Units Model Internal current consumption Communications current consumption CS1W-DRM21(-V1) 290 mA max. 30 mA max. CJ1W-DRM21 290 mA max. 18 mA max. CVM1-DRM21-V1 250 mA max. 45 mA max. C200HW-DRM21-V1 250 mA max.
  • Page 153 Current Consumption of DeviceNet Devices Appendix C Slave Units DRT2-series General-purpose Slaves Model Communications current consumption DRT2-ID16 60 mA max. DRT2-ID16-1 60 mA max. DRT2-OD16 60 mA max. DRT2-OD16-1 60 mA max. DRT2-ROS16 395 mA max. XWT-ID08 (See note.) 5 mA max.
  • Page 154 Note The communications current consumption indicated for Expansion Units is the additional current con- sumed when the Expansion Unit is connected to a Basic Unit. For example, the current consumption for a combination of a DRT2-ID16 Basic Unit and an XWT-OD16 Expansion Unit is 60 + 10 = 70 mA.
  • Page 155 DRT1-HD16S 60 mA max. 40 mA max. DRT1-ND16S 60 mA max. 40 mA max. CQM1-DRT21 80 mA max. (Supplied from the 5 V DC base.) 40 mA max. CPM1A-DRT21 50 mA max. 30 mA max. DRT2-series Environment-resistive Slaves Model Communications current consumption DRT2-ID08C 115 mA max.
  • Page 156 Internal current consumption Communications current consumption CPM2C-S100C-DRT 170 mA max. 30 mA max. CPM2C-S110C-DRT C200HW-DRT21 250 mA max. (Supplied from the 5 V DC base.) 45 mA max. DRT1-232C2 100 mA max. 50 mA max. MULTIPLE I/O TERMINALs Communications Unit...
  • Page 157 Current Consumption of DeviceNet Devices Appendix C Model I/O Unit interface current consumption Internal and I/O current consumption GT1-TS04P 50 mA max. Internal power supply: 80 mA max. (Inrush current 10 A max.) GT1-CT01 90 mA max. 9 mA max.

  • Page 158: Index

    T-branch current capacity Terminating Resistors reducing length connectors for node connections insertion direction models cables RS-232C combining thick and thin multi-drop communications cables xxii wiring connecting precautions distance shielded specifications standard current capacity wiring...
  • Page 159 I/O Link Units allocating node numbers C200H I/O Link Unit connecting to CQM 1 I/O Link Unit connectors for I/O Terminals noise environment-resistant malfunctions due to water-resistant minimizing I/O Units connecting cable packing...
  • Page 160 DeviceNet Network scan list xxii precautions self-diagnosis function xviii short-circuits precautions slaves connected in Network current consumption models special types of Special I/O Units specifications communications communications cables communications power supply T-branch Connectors models T-branch Taps...
  • Page 161 Index...

  • Page 162: Revision History

    Revision History A manual revision code appears as a suffix to the catalog number on the front cover of the manual. Cat. No. W267-E1-11 Revision code The following table outlines the changes made to the manual during each revision. Page numbers refer to the previous version.
  • Page 163 Minor changes were made, mainly to restruc- Page 37: Changed resistance values from “60 Ω ” to “70 Ω ” and from “200 to 300 Ω ” to “300 Ω ture information in tables of device lists, add information and correct minor errors, as follows: or higher.”...

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