User manual OMRON CJ1W-EIP21 REV 02-2010

[. . . ] W465-E1-05 SYSMAC CS and CJ Series CS1W-EIP21 (100Base-TX) CJ1W-EIP21 (100Base-TX) CJ2H-CPU6@-EIP (100Base-TX) CJ2M-CPU3@ (100Base-TX/10Base-T) EtherNet/IP Units OPERATION MANUAL CS1W-EIP21 (100Base-TX) CJ1W-EIP21 (100Base-TX) CJ2H-CPU6@-EIP (100Base-TX) CJ2M-CPU3@ (100Base-TX/10Base-T) EtherNet/IP Units Operation Manual Revised February 2010 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. 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. Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. [. . . ] Because there are few procedures involved, data can be sent at high speed but with less reliability than with TCP. The FINS/UDP method has the following features: · Because FINS/UDP is a connectionless protocol, there is no limit to the number of corrections. · When data is sent via an IP network with multiple layers (such as the Internet), communications reliability drops. FINS/UDP Frame Format The following diagram shows the structure of a UDP packet used for sending and receiving data on an Ethernet network. Ethernet Ver. 2 IP UDP FINS frame FCS UDP packet As the diagram shows, a nested structure is used with the FINS/UDP method, i. e. , Ethernet Ver. A UDP data section (FINS frame) that exceeds 1, 472 bytes is split into packets for transmission. The split UDP data is then joined automatically at the UDP/IP protocol layer. There is normally no need to pay attention at the application layer to this split, but it may not be possible to send 1, 472-byte UDP packets over an IP network with multiple layers. When using the FINS communications service in a system such as this, select the FINS/TCP method. 200 FINS/UDP Method UDP Port Numbers for FINS/UDP Section 8-2 The UDP port number is the number for UDP to identify the application layer (i. e. , the FINS communications service in this case). When communications are executed by UDP/IP, this port number must be allocated to the communications service. The default setting for the UDP port number (i. e. , the UDP port number of the EtherNet/IP Unit or built-in EtherNet/IP port) is 9600. To set another number, set the number on the FINS/UDP Tab Page of the CX-Programmers Edit Parameters Dialog Box. At the EtherNet/IP Unit or built-in EtherNet/IP port, a UDP/IP frame received with a FINS/UDP port number is recognized as a FINS frame. Procedure for Using FINS/UDP 1, 2, 3. . . Keep the CX-Programmer connected online, right-click the EtherNet/IP Unit or built-in EtherNet/IP port in the PLC IO Table Dialog Box, and select Edit - Unit Setup. Set the following in the CPU Bus Unit Setup Area from the FINS/UDP Tab Page of the Edit Parameters Dialog Box. (Default: 9600) · IP Address List (Set only when the conversion method is set to IP address table. ) · Dynamic Change of remote IP addresses 3. The setting data will be transferred to the CPU Bus Unit System Setup Area in the CPU Unit. (See note. ) Set the routing tables with CX-Integrator, and transfer it to each PLC. Create a ladder program that includes the SEND(090), RECV(098), and CMND(490) instructions. Note Routing tables are required in the following situations: · When communicating with a PLC or computer on another network (e. g. , remote programming or monitoring using FINS messages or a CX-Programmer). · When multiple Communications Units are mounted to a single PLC (i. e. , CPU Unit). · When routing tables are used for one or more other nodes on the same network. It is not necessary to set routing tables if one Communications Unit is mounted to the PLC and the nodes are connected as one network. 201 FINS/TCP Method Section 8-3 8-3 8-3-1 FINS/TCP Method Overview The FINS/TCP method is a FINS communications method that uses the TCP/ IP protocol. [. . . ] No changes are necessary if you are connecting through any other port, such as a USB port. Changing Windows Firewall Settings Windows XP 1. When you attempt to connect the CX-Programmer or Network Configurator to a PLC on an EtherNet/IP network through an Ethernet port, the Windows Security Alert Dialog Box will be displayed. Click the Unblock Button. An EtherNet/IP connection will be accepted from CX-Programmer or Network Configurator and EtherNet/ IP connections will be enabled in the future as well. Windows Vista or Windows 7 Use the following procedure to change the settings before attempting to connect from the CX-Programmer or Network Configurator. 423 Precautions for Using Windows XP, Vista, or Windows 7 Appendix G The User Account Control Dialog Box may be displayed during this procedure. If it appears, click the Continue Button and continue with the procedure. [. . . ]