Worldwide Support and Services.................... 32 Hardware Overview The IC-3120 front panel consists of a VGA port, RJ50 serial port, two USB 2.0 ports, a 10/100/1000 Ethernet port, and two Gigabit Ethernet PoE ports. The IC-3120 front panel also includes LEDs for communicating system status and a 44-pin Digital I/O port.
Chassis Grounding Screw Use the grounding screw to connect the chassis to earth ground. An earth ground connection is optional. Note An earth ground connection does not connect C or C to earth ground. 2 | ni.com | IC-3120 User Manual...
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Figure 2. Chassis Grounding Screw 1. Chassis Grounding Screw Power Input Connectors The IC-3120 requires a power supply to power the system. If needed for your application, additional power sources are required to enable Power over Ethernet and to power the isolated outputs.
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PoE power (48 VDC) Ethernet Ports The IC-3120 provides 3 Gigabit Ethernet ports. PoE PORT 0 and PoE PORT 1 are capable of providing Power over Ethernet (PoE). The Ethernet ports provides a connection between the IC-3120, a network, and other Ethernet devices. The IC-3120 automatically detects the speed of the connection and configures itself accordingly.
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Ground for power return RS-485/422/232 Serial Port The IC-3120 has a single serial port that can operate in either RS-485/422 mode or RS-232 mode. Set the serial port mode in the BIOS setup utility. The serial port is a 10-position RJ50 modular jack, which can connect to serial devices, such as PLCs, scanners, and lighting devices.
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22 VGA Port Use the VGA port to connect a monitor to the IC-3120. Use any standard 15-pin VGA cable to access the VGA port. The VGA port has a maximum resolution of 1920 x 1200 at 60 Hz.
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Clock signal of serial communication Digital I/O The 44-pin Digital I/O port on the IC-3120 offers 8 isolated inputs, 8 isolated outputs, 2 bidirectional differential inputs (RS-422) or single-ended input lines that can be used with a quadrature encoder, and 8 bidirectional TTL lines. The Digital I/O port can be connected to any appropriate shielded device or connector block using a shielded cable.
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Common ground reference for isolated inputs and outputs Iso Out 6 General purpose isolated output Iso Out 7 General purpose isolated output Wiring an Isolated Input You can wire an isolated input to a sourcing output device. 10 | ni.com | IC-3120 User Manual...
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Use this protection method if you connect any of the isolated outputs on the IC-3120 to an inductive load. The following image shows an example of an isolated output wired to an external load with a flyback diode installed across the load.
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Inductive Loads Connecting to Differential I/O The IC-3120 accepts differential (RS-422) line driver inputs. Each of the two differential I/O can be configured as an output. Use shielded cables for all applications. Unshielded cables are more susceptible to noise and can corrupt signals.
The following image shows the circuit for a bidirectional TTL I/O. Figure 14. TTL Input/Output Circuit 10 kΩ TTL_OUT 100 Ω TTL_OE TTL I/O TTL_IN LED Indicators The IC-3120 provides the following LED indicators. 14 | ni.com | IC-3120 User Manual...
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IC-3120. Reinstall software on the IC-3120. 3 blinks (RT only) The IC-3120 has booted into safe mode. Refer to the Safe Mode section for information about the safe mode state. 4 blinks (RT only) The IC-3120 has experienced two consecutive software exceptions.
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Table 6. LED Indications (Continued) LED State Indication Color PWR/ — The IC-3120 is OFF. This is not an indication of FAULT whether power is applied or not. Green Solid The IC-3120 is operating normally and is properly powered on.
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Refer to the following table for information about the Ethernet LED indications. Table 8. Ethernet LED Indications Status Indication No link has been established Activity/Link Solid A link has been negotiated Blinking Activity on the link 18 | ni.com | IC-3120 User Manual...
(RT only) Troubleshooting Network Connectivity Use the RESET button to troubleshoot network connectivity. Hold the RESET button for 5 seconds, and then release it to boot the IC-3120 into safe mode. After booting the controller into safe mode, hold the RESET button again for 5 seconds to enable IP reset, which resets the network adapter to its default configuration.
TCP/IP settings are invalid. When the IC-3120 is in the IP reset state, the IP address of the network port resets to DHCP or a link-local address. You can then set up a new network configuration for the IC-3120 from a development machine on the same subnet, or you can connect the IC-3120 directly to the development computer.
While holding down the <Delete> key, power on or reboot the IC-3120. The IC-3120 will enter the BIOS setup program and display the Main menu. BIOS Keyboard Navigation Use the following keys to navigate through the BIOS setup: • Left, right, up, and down arrows—Use these keys to move between different setup menus.
6 SATA Configuration Submenu Use this submenu to apply custom configurations to the processor of the IC-3120. Normally, you do not need to modify these settings, as the factory default settings provide the most compatible and optimal configuration possible.
BIOS setup options, the system will continue booting to the selected device without first rebooting. If BIOS setup options have been changed and saved, a reboot is required and the boot override selection will not be valid. 24 | ni.com | IC-3120 User Manual...
You can create a bootable USB flash drive from the reinstallation DVD if you do not have a USB DVD drive to connect to the IC-3120. The USB flash drive must be at least 8 GB. Ensure the USB flash drive appears as a Removable Drive in Windows. Avoid using drives that appear as Fixed Disk drives.
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Complete the following steps to use the recovery media to install Windows. Connect the bootable USB flash drive to one of the USB ports on the IC-3120. Or connect an external DVD drive to one of the USB ports on the IC-3120 and insert the recovery DVD into the external drive.
This section provides information for creating a custom mount for the IC-3120. If you do not want to create a custom mount, a panel and DIN rail mount kit for the IC-3120 is available from National Instruments (part number 781740-01).
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(14.25 mm) 1.852 in. (47.04 mm) .985 in. (25.03 mm) .600 in. (15.231 mm) .593 in. (15.06 mm) .973 in. (24.71 mm) .834 in. (21.19 mm) .593 in. (15.07 mm) 2.400 in. (60.96 mm) 28 | ni.com | IC-3120 User Manual...
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Figure 22. Side View with Dimensions in inches [millimeters] 3.80 mm (0.150 in.) 104.67 mm (4.121 in.) 130.38 mm (5.133 in.) 108.47 mm (4.270 in.) 30 | ni.com | IC-3120 User Manual...
The IC-3120 installation must meet the following space and cabling clearance requirements for optimum cooling: • Allow 76.2 mm (3.0 in.) on the top and bottom of the IC-3120 for air circulation. • Allow 50.8 mm (2.0 in.) on the sides of the IC-3120 for air circulation.
Where to Go Next The following documents and resources contain information you may find helpful as you use the IC-3120 in an application. Refer to the National Instruments Product Manuals Library at ni.com/manuals for the most recent versions of product documentation.
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