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National Instruments IC-3121 User Manual Download Page 3

Figure 1. IC-3121 Front Panel Connectors

IC-3121

Industrial Controller

RESET

DIGIT

AL I/O

10/100/

1000

ACT/
LINK

USER1

USER2

PWR/

FA

UL
T

ST

A

TUS

5

3

6

1

2

4

1. VGA Connector
2. RS-232/RS-485 Serial Port
3. USB 2.0 Ports

4. Gigabit Ethernet Port
5. USB 3.0 Ports
6. 44-pin Digital I/O Connector

Connector Pinouts

The IC-3121 provides the following connectors.

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

ISO

 to earth ground.

2

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ni.com

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IC-3121 User Manual

Summary of Contents for IC-3121

Page 1: ...struments IC 3121 Manual Get Pricing Availability at ApexWaves com Call Today 1 800 915 6216 Email sales apexwaves com https www apexwaves com modular systems national instruments industrial controlle...

Page 2: ...ing System 24 Restoring the Windows Operating System 24 Mounting the IC 3121 26 Securing the IC 3121 to a Mount 30 Clearance Requirements 30 Where to Go Next 31 Worldwide Support and Services 32 Hardw...

Page 3: ...l Port 3 USB 2 0 Ports 4 Gigabit Ethernet Port 5 USB 3 0 Ports 6 44 pin Digital I O Connector Connector Pinouts The IC 3121 provides the following connectors Chassis Grounding Screw Use the grounding...

Page 4: ...ed outputs The same power supply may be used for both the system power and isolated outputs power if isolation is not required and the power supply meets the voltage and power requirements for both in...

Page 5: ...lf accordingly A CAT 5e or CAT 6 1000Base T Ethernet cable is required to achieve 1 000 Mbps Gigabit Ethernet performance CAT 5 Ethernet cables are not guaranteed to meet the necessary requirements Wh...

Page 6: ...A 7 No Connect BI_DD BI_DC 8 No Connect BI_DD BI_DC USB 2 0 Ports The USB ports support common USB peripheral devices such as USB flash drives USB hard drives USB to IDE adapters keyboards mice and US...

Page 7: ...s a 10 position RJ50 modular jack which can connect to serial devices such as PLCs scanners and lighting devices NI recommends the following serial cables for the IC 3121 Cable Part Number RJ50 10 pos...

Page 8: ...21 VGA Port Use the VGA port to connect a monitor to the IC 3121 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 Figure 7 VGA Por...

Page 9: ...ral devices such as USB flash drives USB hard drives USB to IDE adapters keyboards mice and USB cameras RT only LabVIEW usually maps USB mass storage devices to the U V W or X drive starting with the...

Page 10: ...NI recommends the following digital I O cables for the IC 3121 Cable Part Number 44 pin D sub male to pigtail cable 156083 03 for 3 meter cable 44 pin D sub male to 44 position D sub female cable 1560...

Page 11: ...so Out 4 General purpose isolated output 16 Diff 0 Bidirectional RS 422 I O negative side or quadrature encoder phase A 17 GND Digital ground reference for TTL and differential I O 18 TTL 4 Bidirectio...

Page 12: ...round reference for isolated inputs and outputs 40 Iso In 6 General purpose isolated input 41 Iso In 7 General purpose isolated input 42 CISO Common ground reference for isolated inputs and outputs 43...

Page 13: ...ductive load The following image shows an example of an isolated output wired to an external load with a flyback diode installed across the load Caution Do not draw more than 35 mA from each isolated...

Page 14: ...ff I O 1 3 3 V 10 k 10 k 10 k 10 k EN EN 7 5 k 7 5 k 7 5 k 7 5 k Figure 13 Connecting Differential Line Drivers Diff In 0 Diff In 0 Phase A Phase A Diff In 1 Diff In 1 Phase B Phase B External Device...

Page 15: ...In 1 Diff In 1 Phase B External Device Industrial Controller TTL I O The following image shows the circuit for a bidirectional TTL I O Figure 15 TTL Input Output Circuit 100 TTL_OUT TTL_OE TTL_IN 10 k...

Page 16: ...SET DIGITAL I O 10 100 1000 ACT LINK USER1 USER2 PWR FAULT STATUS 0 1 USER1 USER2 PWR FAULT STATUS IC 3121 Industrial Controller The following table describes the LEDs and indications IC 3121 User Man...

Page 17: ...about the safe mode state 4 blinks RT only The IC 3121 has experienced two consecutive software exceptions The IC 3121 automatically restarts after an exception After the second exception the IC 3121...

Page 18: ...hat can be controlled using the NI System Configuration API Related Information Safe Mode on page 18 Ethernet LEDs The Gigabit Ethernet port has the following LEDs Figure 17 LEDs for the Gigabit Ether...

Page 19: ...to enable IP reset which resets the network adapter to its default configuration Safe Mode When you boot the IC 3121 into safe mode it launches only the services necessary for updating its configurat...

Page 20: ...Drivers include a reconfigurable I O personality that you can use out of the box Install the following software if you need to compile a custom personality for your application LabVIEW 2014 SP1 or lat...

Page 21: ...default values Press F1 from any root menu to display more information about navigating the BIOS setup program Menu items listed in blue are changeable menu items in gray are not changeable A blue tr...

Page 22: ...rations to the USB ports Normally you do not need to modify these settings as the factory default settings provide the most compatible and optimal configuration possible Legacy USB Support Specifies w...

Page 23: ...figuration options To select a boot device press Enter on the desired configuration on the desired configuration option and select a boot device from the resulting menu You can also disable certain bo...

Page 24: ...hen exits and reboots the controller Discard Changes and Reset Any changes made to BIOS settings during this session of the BIOS setup utility since the last save are discarded The setup utility then...

Page 25: ...1 Getting Started Guide for information about installing software and configuring the device Related Information Safe Mode on page 18 Restoring the Windows Operating System You can restore the Windows...

Page 26: ...ree volume letter where free volume letter is a letter not currently associated with any disk drives For example assign letter K 12 Copy the contents of the reinstallation DVD to the root of the USB f...

Page 27: ...mount for the IC 3121 If you do not want to create a custom mount a panel and DIN rail mount kit for the IC 3121 is available from National Instruments part number 781740 01 Caution If you choose not...

Page 28: ...mm 0 667 in 17 11 mm 0 674 in 26 78 mm 1 054 in 27 56 mm 1 085 in 21 19 mm 0 834 in 15 07 mm 0 593 in 38 75 mm 1 526 in 9 51 mm 0 374 in 40 77 mm 1 605 in 26 7 mm 1 051 in 24 17 mm 0 951 in 17 21 mm 0...

Page 29: ...iew with Dimensions in inches millimeters 23 46 mm 0 924 in 54 48 mm 2 145 in 23 24 mm 0 915 in 37 50 mm 1 476 in 19 41 mm 0 764 in 24 46 mm 0 963 in 25 92 mm 1 020 in 10 58 mm 0 417 in 28 ni com IC 3...

Page 30: ...Figure 21 Side View with Dimensions in inches millimeters 130 38 mm 5 133 in 108 47 mm 4 270 in 3 80 mm 0 150 in 104 67 mm 4 121 in IC 3121 User Manual National Instruments 29...

Page 31: ...t two 6 32 screws and tighten them until they are secure 3 5 in lb Make sure the heads of the screws are flush with the mounting bracket Clearance Requirements The IC 3121 installation must meet the f...

Page 32: ...121 in an application Refer to the National Instruments Product Manuals Library at ni com manuals for the most recent versions of product documentation IC 3121 Specifications Contains detailed specifi...

Page 33: ...MYNI 275 6964 For telephone support outside the United States visit the Worldwide Offices section of ni com niglobal to access the branch office websites which provide up to date contact information...

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