User manual OMRON DEVICENET

[. . . ] W267-E1-11 DeviceNet OPERATION MANUAL DeviceNet Operation Manual Revised April 2008 iv Notice: OMRON products are manufactured for use according to proper procedures by a qualified operator and only for the purposes described in this manual. The following conventions are used to indicate and classify precautions in this manual. Always heed the information provided with them. Failure to heed precautions can result in injury to people or damage to property. !DANGER !WARNING Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. [. . . ] Communications Connectors Connect the network communications cables to the provided XW4B-05C1-H1-D Straight Connectors. DIN Track mounting hooks Use when mounting the Tap to a DIN Track. DCN1-2C and DCN1-2R T-branch Tap Components Communications Connectors Connect the network communications cables. DCN1-4C: XW4B-05C1-H1-D Straight Connector with attachment screws DCN1-4R: XW4B-05C1-VIR-D Right-angle Connector with attachment screws Mounting screw holes Use when screwing the Tbranch Tap to a control panel. DCN1-4 T-PORT TAP Terminating Resistor socket Connect a Terminating Resistor here if the T-branch Tap is installed at the end of the trunk line. Communications Connectors Connect the network communications cables. DCN1-4C: XW4B-05C1-H1-D Straight Connector with attachment screws DCN1-4R: XW4B-05C1-VIR-D Right-angle Connector with attachment screws DIN Track mounting hooks Use when mounting the Tap to a DIN Track. 2-3-5 Shielded T-branch Connectors Use a T-branch Connector when a T-branch is required in a Network that has communications cables with shielded connectors. 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 Resistance. (Male plug and female socket terminators are available. ) 2. When the Network is powered by a single communications power supply and the current consumption is within the T-branch Connector's specifications, the communications power supply can be connected to a T-branch 57 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 DCN2-1 Remarks Shielded T-branch Connector (1 branch) with 3 micro-size (M12) connectors Maximum current: 3 A Shielded T-branch Connector (1 branch) with 3 mini-size connectors Maximum current: 8 A Shielded T-branch Connector (1 branch) with 2 mini-size connectors and 1 micro-size (M12) connector Maximum current: 8 A (3 A max. through the micro-size connector) DCN3-11 DCN3-12 DCN2-1 Mounting holes Male Male Female Thin cable Cables with shielded micro-size (M12) connector on one end or both ends Female Male Female Thin cable Cable with shielded micro-size (M12) connector on one end or both ends Thin cable DCN3-11 Mounting holes Male Female Male Female Thick cable Cables with shielded mini-size connector on one end or both ends Female Male Thick cable Thick cable Cable with shielded mini-size connector on one end or both ends DCN3-12 Mounting holes Male Female Male Female Thick cable Cable with shielded mini-size connector on one end or both ends Thin cable Thick cable Cable with shielded mini-size Female connector on one end or both ends Male Cable with shielded micro-size (M12) connector on one end or both ends 58 Cables, Connectors, and Related Devices Internal Circuitry Block Diagram Plug CN0 (IN) 1 2 3 4 5 12345 Section 2-3 Wiring Socket CN2 (OUT) 1 2 3 4 5 Pin 1 2 3 4 5 Name SHIELD V+ V- CAN H CAN L Socket CN1 (OUT) 2-3-6 Flat Cable T-branch Connectors Appearance Model DCN4-TR4-1 Application Used together with the DCN4-BR4 or the DCN4-BR4D to extend trunk or branch lines or to T-branch the trunk line. Can also be used to connect a DCN4-TM4 Terminating Resistor. Used together with the DCN4-TR4-1 to extend or branch flat cable. Types of T-branch Connectors DCN4-BR4 DCN4-BR4D Used together with the DCN4-TR4-1 to branch to thin cable. 2-3-7 Power Supply Tap In the DeviceNet system, a 24-V DC communications power supply must be supplied to the Network. The communications power supply can be supplied to the cable by connecting it to a Power Supply Tap. Use a regular node connector to connect communications cable to the Power Supply Tap, the same way that communications cables are connected to a T-branch Tap. Note 1. If there is just one power supply to the Network and the total current consumption is less than 5 A, the communications power supply can be connected through a regular T-branch Tap instead of a Power Supply Tap. A Power Supply Tap must be used if there is more than one power supply connected to the Network or the total current consumption exceeds 5 A. When the Power Supply Tap is connected to thin cable, the current capacity 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. 59 Cables, Connectors, and Related Devices Section 2-3 (If two thick cables are connected, 8 A can be supplied to each cable for a total of 16 A. ) Model DCN1-1P Remarks Includes two XW4B-05C1-H1-D Straight Connectors with attachment screws, a terminator (attach if needed), fuses, and a ground terminal. Communications Power Supply (24 V DC) Communications Connectors Internal Circuitry CN1 V- L S H V+ F1 S CN4 F2 V+' H' S' CN2 L' V-' CN3 Pin V- L S H V+ Name V- CAN L SHIELD CAN H V+ 2-3-8 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. There are several ways to connect a Terminating Resistor. A special Terminalblock Terminating Resistor can be connected, a resistor can be installed in the Terminating Resistor socket of a T-branch Tap or Power Supply Tap, or a shielded connector with terminating resistance can be connected to a Tbranch Connector. A Terminating Resistor is provided with T-branch Taps and Power Supply Taps. If a resistor is to be installed on a T-branch Tap or Power Supply Tap, always use the provided Terminating Resistor. Model (No model number) Remarks Terminating Resistor provided with T-branch Taps and Power Supply Taps (121 ±1%, 1/4 W) DRS1-T Terminal-block Terminating Resistor (121 ±1%, 1/4 W) DRS2-1 Shielded Micro-size (M12) Connector with Terminating Resistance (male plug) DRS2-2 Shielded Micro-size (M12) Connector with Terminating Resistance (female socket) 60 V+ V- Cables, Connectors, and Related Devices Model DRS3-1 Section 2-3 Remarks Shielded Mini-size Connector with Terminating Resistance (male plug) DCN4-TM4 Used to connect the DCN4-TR4-1. DCN4-TP4D Flat Cable Power Supply Terminal Block with Terminating Resistance When flat cable is used, communications power can be supplied from the terminals on this terminal block. 2-3-9 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 recommended. [. . . ] Information on connection to other company's Masters removed. Appendix F: New model information added. 5 May 2000 6 07 October 2000 August 2002 141 Revision History Revision code 08 Date December 2003 Revised content Changes were made throughout the manual to include information on new models, including connectors, T-branch taps and DRT2-series Smart Slaves. "PC" was also changed to "PLC" throughout the manual as the abbreviation for Programmable Controller. Pages 4, 5, 6: Added (-V1) suffix to models in table. [. . . ]