The Ethernet NIU The Series 90-30 Ethernet Network Interface Unit (IC693NIU004) operates as an Ethernet Global Data (EGD) station, exchanging I/O data, status, and control data on an Ethernet network. The Ethernet NIU has eight LEDs, an Ethernet Restart pushbutton, three port connectors, and a shield ground connection tab. The keyswitch on the front of the module is not used. The station address (MAC address) label is located on the outside of the module. NIU004 PS PORT MGR STATION FRAME EOK LAN STAT ETHERNET RESTART PIN 1 10/100 ETHERNET LINK/ACT 100Mbps 10/100 ETHERNET LINK/ACT 100Mbps PORT 1 PORT 2 A B LEDs There are eight LEDs on the ENIU. Four of these LEDs: EOK, LAN, STAT, and PS PORT give module status information. Four LEDS are associated with the two RJ-45 ports. The PS (Power Supply) PORT LED is not Ethernet related; it indicates the presence of serial traffic through the serial port of the NIU s power supply. Each of the three Ethernet LEDs (EOK, LAN, and STAT) can be ON, OFF, BLINKING slow, or BLINKING fast. They indicate the state of the Ethernet Interface, traffic at the Ethernet Interface (LAN LED), and that an exception event has occurred. The seven Ethernet LEDs are briefly turned ON whenever a restart is performed in the Operational state by pressing and releasing the Restart pushbutton. Each RJ-45 port has two green LED indicators on it. The upper indicator, labeled LINK/ACT, lights when the link is physically present and blinks when traffic is detected on the port. Traffic at the port does not necessarily mean that traffic is present at the Ethernet Interface, because the traffic can be going between the two ports of the switch. The lower indicator, labeled 100MBPS, lights if the network connection is 100Mbps. GFK-2296 Chapter 1 Introduction 1-3 1 Ethernet Restart Pushbutton The Ethernet Restart pushbutton serves two functions: LED test and Restart. Pressing the Ethernet Restart pushbutton will disrupt Ethernet communications (including any communications to other devices attached to the embedded switch). LED Test: Any time the Ethernet Restart pushbutton is pressed, the seven Ethernet LEDs flash ON. The operator should visually verify that the LEDs go OFF and then ON at this time. Then the Interface performs a restart. Restart: Pressing the Ethernet Restart pushbutton requests a restart of the Ethernet Interface. When the Restart pushbutton is pressed, the seven Ethernet LEDs go out then flash ON, then power-up diagnostics run, and the software on the Interface is restarted into the Operational state. RS-232, RJ-11 Port (Station Manager Port) The RS-232, 6-pin, RJ-11 phone jack port is used to connect a terminal or terminal emulator to access the Station Manager software on the Ethernet Interface. A cable (IC693CBL316A) is needed to connect the terminal, emulator, or Software Loader to the Ethernet. The Station Manager feature can be used for testing and troubleshooting Ethernet communications. Its use is optional. Ethernet Ports There are two RJ-45 Ethernet ports on the NIU. Either or both of these ports may be attached to other Ethernet devices. Each port automatically senses the data rate (10Mbps or 100Mbps), duplex (half duplex or full duplex), and cabling arrangement (straight through or crossover) of the attached link. Caution The two ports on the Ethernet Interface must not be connected, directly or indirectly to the same device. The hub or switch connections in an Ethernet network must form a tree, otherwise duplication of packets may result. The two Ethernet ports are 10-BASE-T/100-BASE-Tx Autonegotiating Full-Duplex ports, which provide direct connection to one or two 10-BASE-T/100-BASE-TX cat 5 (twisted pair) Ethernet LAN cables. Cables may be shielded or unshielded, and direct or cross-over. The ports are connected to an embedded switch. There is not a separate IP address for each port. The LINK/ACT LED on each port goes on when a network link is established and blinks when data is being transferred through the port. The 100Mbps LED goes on if the network link has been established at 100 MBPS and goes off if the network link has been established at 10Mbps. Shield Ground Connection Tab This tab is used to make the module s shield ground connection. A wire with the applicable terminal ends is supplied with the module for this purpose. 1-4 Series 90 -30 Programmable Controller Ethernet NIU User s Manual January 2004 GFK-2296 1 NIU Specifications Type of Memory Storage RAM and Flash User Memory (total) None Discrete Input Points - %I 2,048 (fixed) Discrete Output Points - %Q 2,048 (fixed) Discrete Global Memory - %G NA Internal Coils - %M 4096 (fixed). Reserved for system use. Output (Temporary) Coils - %T 256 bits (fixed). Reserved for system use. System Status References - %S 128 bits (%S, %SA, %SB, %SC - 32 bits each) (fixed) Register Memory - %R 9999. Reserved for system use. Analog Inputs - %AI 1268 Analog Outputs - %AQ 512 System Registers - %SR NA Timers/Counters NA Battery Backed Clock Use of a battery is recommended, if a battery is not present the ENIU will report a low battery fault. It can be used to maintain the clock, or to save a configuration stored in RAM, The clock is used to initialize the EGD timestamp clock of the Ethernet interface. Battery Back Up (Number of months with no power) 1.2 months for internal battery (installed in the power supply) 15 months with external battery (IC693ACC302) Load Required from Power Supply 7.4 watts of 5VDC. High Capacity power supplies required. EZ Program Store Device No Total Baseplates per System 8 (CPU baseplate + 7 expansion and/or remote) Programming Support CIMPLICITY Machine Edition Logic Developer 4.0, service pack 3, with Special 4 or later. Built-in Serial Ports None. Supports RS-485 port on power supply. Protocol Support SNP and SNPX on power supply RS-485 port Built-in Ethernet Communications Ethernet (built-in) 10/100 base-T/TX Ethernet Switch Number of Ethernet Ports Two, both are 10/100baseT/TX ports with auto sensing. RJ-45 connection. Number of IP Addresses One Protocols SRTP Server and Ethernet Global Data (EGD) Operating Temperature 0 to 60 C (32 to 140 F) ambient Storage Temperature -40 C to +85 C Agency Approvals UL508, C-UL (Class I, DIV II, A, B, C, D), CE Mark Low Temperature (LT) Testing Yes. The NIU is available for -40 to 60 C operation. GFK-2296 Chapter 1 Introduction 1-5 1 A Series 90-30 I/O Station A set of Series 90-30 modules can be selected to suit the application, and connected as a slave on an Ethernet network via the NIU. HIGH CAPACITY + POWER SUPPLY SERIES 90-30 GE Fanuc B A T T E R Y PWR OK RUN BATT 8 NIU I/O Bus Expansion Connector Ethernet Master The NIU is located in the CPU baseplate s CPU slot. Together, the NIU and the modules selected for the application function as an I/O Station. 1-6 Series 90 -30 Programmable Controller Ethernet NIU User s Manual January 2004 GFK-2296 1 Modules and Racks in the I/O Station The I/O Station can consist of just the CPU baseplate with NIU and modules,or a CPU baseplate and additional Expansion baseplates and Remote baseplates with modules as appropriate for the application. CPU Baseplate Expansion Baseplate I/O Bus Terminator Plug Up to 50 Ft (15 M) I/O Expansion Cables NIU Expansion Baseplate Expansion Baseplate Expansion Baseplate ■ An Ethernet NIU can support up to 2048 discrete inputs, 2048 discrete outputs, 1268 analog inputs and 512 analog outputs. Additional I/O in the system can be located in other I/O Stations on the same network. ■ There can be up to 50 feet (15 meters) of cable interconnecting Expansion baseplates and the CPU baseplate. The maximum number of Expansion baseplates in the I/O Station is 7. The actual number that can be used in an application depends on the amount of I/O capacity available on the network and the memory capacity of the CPU. Expansion baseplates are available in two versions; 5-slot (IC693CHS398) and 10-slot (IC693CHS392). All Expansion baseplates must be connected to a common ground, as described in the hardware installation manual. ■ If a baseplate must be located more than 50 feet from the NIU, a Remote baseplate must be used. There can be up to 700 feet of cable connecting all baseplates in a system that uses Remote baseplates. Up to 7 Remote baseplates can be used in the system. Remote baseplates are available in two sizes; 5-slot (IC693CHS398) and 10-slot (IC693CHS392). The cable type recommended for use with Remote baseplates must be used throughout the system. I/O Stations on the Network GFK-2296 Chapter 1 Introduction 1-7 1 An Ethernet network can serve more than one NIU I/O Station. NIU N I U N I U CP U Multiple Ethernet NIU I/O Stations PLC with Ethernet Interface The Ethernet Interface in the master PLC sees all of the modules on the network without regard to their location in a specific I/O Station. That means each module must be assigned unique I/O references during configuration. The application program in the PLC sends output data on the Ethernet network, and each NIU consumes all of the output data. Each NIU then maps the output data to its own output memory. During the output portion of each NIU s I/O scan, it automatically sends the appropriate output data to the modules in its I/O Station. Similarly, when the master PLC receives data from the NIUs, it maps the I/O data into PLC memory at the appropriate addresses. Therefore, it is important to be sure that all of the input references are unique to prevent input data being accidentally overwritten. See chapter 3 for more information about reference usage in the system.