SCB-68 User Guide - National Instruments
Contents
1. T g 00000000000000000 7 1 si oo O ccooo000000000000 Q 5 oR2TjO 00000000000000000 Q j o 04 Jo o00000000000000 00 zn a0 tous Ji pom oO amoa Si Ome Dera Pint to 68 NATIONAL 8 8 m4 on INSTRUMENTS s i ee 9 be RCI3 D oO 67 2 O Nn RIA e000000 1 O O RaaILO 9 R6 F K io o00000000 0000000 Oer Oaa TO 33 0000000000 46 009000035 Jg 0000000000 0000000 apaoho Jo o 66 600000006013 d000000 2 N Kmr O of RT G 0000000000 9000000 3 6 La 7 oeo u O 32 000000000047 0000000 OS res z 0000000000 0000000 O eP O oH o 65000000000014 oooo000 3 Ji meralo eea 0000000000 0000000 5 ees ol iee 310000000000 48 000000037 gt rD ts 0000000000 0000000 TRO HO aoin O 64000000000015 oc00000 Al fy rs RL 0000000000 0000000 o e O pd o 30 000000000049 0006600 38 l la T 0000000000 0000000 aalo PE Fo 63 600060000016 6060066 5 O w Romy ao MY e 292999999909050 9000000 3g oe ae S 0000006000 O 6660060 TSG 9000000000 0000000 fe TET 9 07 62 909009000017 0000000 o Cote a 0000600000 0060000 Taree Pot to O 28 000000000051 9000000 40 ETOL 0000 000 0000000 FEES lol te 6100002. 87 ___ J 67 tf tf Gomes oO E mes Hf i gg Figure 4 MIO DAQ Device Modes Switch Settings National Instruments Corporation 7 SCB 68 User Guide Connecting Signal Sources to Analog Inputs For detailed information about connections from floating or ground referenced signal sources to analog inputs refer to your device documentation Refer to the SCB 68 User Manual for Advanced Functions for more information about using the temperature sensor taking thermocouple measurements and adding bias resistors and signal conditioning components to the SCB 68 Fuse and Power Information Some DAQ devices provide 5 V power on pin 8 and pin 14 Pin 8 from the DAQ device is protected by an 800 mA 250 V 5 20 mm fuse on the SCB 68 shown in Figure 2 Shorting pin 8 to ground blows the fuse on the SCB 68 Pin 14 is not fuse protected on the SCB 68 Shorting pin 14 will cause the fuse on the DAQ device to open If the SCB 68 does not work when you power on the DAQ device check the switch settings then check the fuse on the SCB 68 shown in Figure 2 and the output fuse if any on the DAQ device Littelfuse part number 235 800 www 1littelfuse com is a suitable replacement fuse Before replacing any fuses check for short circuits from power to ground Refer to the SCB 68 User Manual for Advanced Functions for information about filtering the power on the SCB 68 Where to Go from Here Refer to the SCB 68 User Manual for
3. Jol o o Jo MIO with differential temperature sensor mode Move switches S1 S2 S3 S4 and S5 to the positions shown at left In this mode The temperature sensor can be read using AI 0 and AI 8 in differential mode e 5 V power provided to signal conditioning area of the accessory Refer to Figure 4 for a detailed diagram SCB 68 User Guide 6 ni com Table 2 MIO DAQ Device Switch Settings Continued Switch Setting Description Direct feedthrough mode Move switches S1 S2 o jor S1 S3 S4 and S5 to the positions shown at left In this fol fol 9 Jo 2 mode e All 68 signals from the device connect directly to S5 S4 S3 screw terminals Refer to Figure 3 for a detailed diagram Not available on Connector 1 of NI 6225 6255 devices Not available on S Series devices MIO DAQ Device Cable SCB 68 _ Screw BAS l parasan opheenedetesescece e Terminal vE Ss Refer to ro gt Signal Your Device i it Conditioning Documentation HER for Device 68 1 S5 0H Temperature AlO 7 t p Signal Sensor Information 2 4 S 68 Al g 34 14 s4 0 9 Tn 1A u ma og yy EENE 5 TERE SJ 2 Other i 7 3 Pins ie 1 ENE 66
4. 00018 oooo0o00 7 sam RE 0000 000 0000000 44 EETA 27 000000000052 0000000 g O maw 69 2299090000 0000000 Razer et re 000000000019 oc00000 8 San 9000000000 0000000 oEEOhO o o O 26 000000000053 000000042 km SIG 0000000000 90990000 gj omor O 59 000000000020 9999000 TATOO me 0000000000 Doar Oln o 250000000000 54 0 o2 43 D ESOhO od 99000000000 R2 Efa ngoo lol re 58 000000000021 54 HoE OF omo y T 0000000000 RCs lo DBE HO O 24 000000000055 2 Coo 744 F o io Bugie 0000000000 R3 Seep Lot te 57 000000000022 pt ela 1 0000000000 a O B7ObO o fs noo lol ser l O 23 000000000056 S Sara o 9000000000 0000000000 n ScB 68 3233333333 gt COPYRIGHT 199 Z a Switches S3 S4 and S5 68 Pin I O Connector Breadboard Area Fuse 800 mA 250 V 5 20 mm Switches S1 and S2 Screw Terminals Signal Conditioning Areas Temperature Sensor RON ONO Figure 2 SCB 68 Printed Circuit Board Diagram To get started with the SCB 68 complete the following steps while referring to Figures 1 and 2 If you have not already installed your DAQ device refer to the DAQ Getting Started Guide for instructions 1 Disconnect the cable from the SCB 68 remove the shielding screws with a Phillips 1 screwdriver and open the top cover 2 Attach the quick reference label to the inside of the top cover as shown in F
5. O MIO DAQ devices such as E M S Series devices in a number of ways Switches S1 and S2 provide power to the signal conditioning area of the accessory The SCB 68 has a temperature sensor for cold junction compensation CJC to accommodate thermocouples switches S3 4 and S5 configure the temperature sensor for different analog input settings Table 2 shows the different switch settings for MIO DAQ devices Table 2 MIO DAQ Device Switch Settings Switch Setting Description Jol Jol Jol S5 S4 S3 Jol Jo s2 MIO with disabled temperature sensor mode default configuration Move switches S1 S2 S3 S4 and S5 to the positions shown at left In this mode The temperature sensor is not used e AIQ and AI 8 are available on screw terminals e 5 V power provided to signal conditioning area of the accessory Refer to Figure 4 for a detailed diagram S5 S4 S3 OT s1 MIO with single ended temperature sensor mode Move switches S1 S2 S3 S4 and S5 to the positions shown at left In this mode The temperature sensor can be read using AI 0 in referenced single ended RSE mode e AT8 is available on a screw terminal e 5 V power provided to signal conditioning area of the accessory Refer to Figure 4 for a detailed diagram tS fol S5 S4 S3
6. you have finished using the SCB 68 power off any external signals connected to the SCB 68 before you power off your computer Using the SCB 68 in Direct Feedthrough Mode High Speed Digital I O DIO NI Switch R Series AO Series and TIO Series devices and devices without analog input functionality must use direct feedthrough mode Move the switches to the direct feedthrough mode switch setting shown in Table 1 Table 1 Direct Feedthrough Switch Setting Switch Setting Description ame Direct feedthrough mode Move switches S1 S2 JOU S1 3 S4 and S5 to the positions shown at left In this fol fel S Jol 2 mode All 68 signals from the device connect directly to S5 S4 S3 screw terminals Refer to Figure 3 for a detailed diagram Device Cable SCB 68 Screw zer enSSEs E E E E E E AET Looi 1 Refer to 2 S 2 Your Device 4 ee Documentation ee for Device 67 i Signal H i a 9 67 Information 68 i S 68 Temperature _ Signal i 11 Sensor Me Conditioning NC nee em s1 gt 1 SP eE se oe Ee ee Figure 3 Direct Feedthrough Mode Switch Setting National Instruments Corporation 5 SCB 68 User Guide Using the SCB 68 with MIO DAQ Devices You can take measurements with the SCB 68 and multifunction I
7. Advanced Functions available from ni com manuals for information about the temperature sensor thermocouple measurements bias resistors soldering components on the SCB 68 filtering current input measurements and accessory specifications National Instruments NI ni com and LabVIEW are trademarks of National Instruments Corporation Refer to the Terms of Use section on ni com lega1 for more information about National Instruments trademarks Other product and company names mentioned herein are trademarks or trade names of their respective companies For patents covering National Instruments products technology refer to the appropriate location Help Patents in your software the patents txt file on your media or the National Instruments Patent Notice at ni com patents 1994 2009 National Instruments Corp All rights reserved 371745C 01 Mar09
8. SCB 68 User Guide 68 Pin Shielded Desktop Connector Block This guide describes how to connect and use the NI SCB 68 with 68 pin or 100 pin data acquisition DAQ devices and other NI products with a 68 pin SCSI or VHDCI I O connector For a complete list of supported devices and available SCB 68 features refer to the KnowledgeBase document Compatible Devices and Cabling for the NI SCB 68 Terminal Block To access this document go to ni com info and enter the info code scb68dev Figure 1 shows the SCB 68 connector block 1 Quick Reference Label 4 Lock Washers 8 Strain Relief Screws 2 Top Cover 5 Shielding Screws 9 Strain Relief Hardware 3 68 Pin Connector 6 68 Pin I O Connector 10 SCB 68 Board Screws 7 Base Assembly Figure 1 SCB 68 Parts Locator Diagram Note To use the SCB 68 with devices without analog input functionality you must change the default switch setting Refer to the Using the SCB 68 in Direct Feedthrough Mode section for more information Q7 NATIONAL P INSTRUMENTS What You Need to Get Started To set up and use your SCB 68 you need the following LU SCB 68 68 pin shielded connector block kit s containing the SCB 68 SCB 68 quick reference label and SCB 68 User Guide Q Compatible 68 pin or 100 pin DAQ device and device documentation LJ The correct cable s for your device as listed in the KnowledgeBase document Compatible Devices and Cabling for the NI SCB 68 Ter
9. igure 1 For quick reference label PDFs for most compatible devices refer to the KnowledgeBase document Where Can I Find National Instruments Corporation 3 SCB 68 User Guide T SCB 68 SCB 100 Quick Reference Labels To access this KnowledgeBase go to ni com info and enter the info code rdwpdf Configure switches for the signal types you are using as explained in the Using the SCB 68 in Direct Feedthrough Mode section or the Using the SCB 68 with MIO DAQ Devices section Adjust the strain relief hardware by loosening the strain relief screws with a Phillips 2 screwdriver and sliding the signal wires through the front panel strain relief opening If you are connecting multiple signals remove the top strain relief bar and add insulation or padding if necessary Connect the wires to the screw terminals by stripping 6 35 mm 0 25 in of insulation inserting the wires into the screw terminals and securely tightening the screws with the flathead screwdriver to a torque of 0 5 0 6 N m 4 43 5 31 Ib in Reinstall the strain relief if removed and tighten the strain relief screws Close the top cover and reinsert the shielding screws to ensure proper shielding UN Caution Do not connect input voltages 242 4 V 60 VDC to 8 10 the SCB 68 The SCB 68 is not designed for any input voltages 242 4 V 60 VDC even if a user installed voltage divider reduces the voltage to within the input range of the DAQ device Input
10. minal Block To access this document go to ni com info and enter the info code scb68dev Phillips 1 and 2 screwdrivers 0 125 in flathead screwdriver 14 30 AWG wire Wire cutters DOODO Wire insulation stripper Getting Started with the SCB 68 The following cautions contain important safety information concerning hazardous voltages and connector blocks UN Cautions To avoid electrical shock do not remove equipment covers or shields unless you are qualified to do so Before removing the cover disconnect any live circuit from the connector block The chassis ground terminals on your SCB 68 are for grounding high impedance sources such as a floating source 1 mA maximum Do not use these terminals as safety earth grounds Do not connect hazardous voltages 242 Vpx 60 VDC 1 You can use up to two SCB 68 accessories with AO M Series devices with two connectors and E Series 100 pin devices You can use up to four SCB 68 accessories with R Series devices with four connectors and up to three SCB 68 accessories with R Series devices with three connectors SCB 68 User Guide 2 ni com Figure 2 shows the SCB 68 board parts locator diagram
11. voltages 242 4 V x 60 VDC can damage the SCB 68 all devices connected to it and the host computer Connect the SCB 68 s to the DAQ device using the appropriate cable s for your device For a complete list of cabling options for supported devices refer to the KnowledgeBase document Compatible Devices and Cabling for the NI SCB 68 Terminal Block To access this document go to ni com info and enter the info code scb68dev Launch Measurement amp Automation Explorer MAX confirm that your DAQ device is recognized and configure your device settings Refer to the DAQ Getting Started Guide for more information Optional If you are going to take measurements with an MIO DAQ device configure the SCB 68 as an accessory for a DAQ device using MAX by completing the following steps a Navigate to MAX by selecting Start Programs National Instruments Measurement amp Automation b In the left pane of MAX expand Devices and Interfaces then right click on your DAQ device and select Properties from the pull down menu c Select the Accessory tab from the dialog box select SCB 68 from the pull down menu then select Configure SCB 68 User Guide 4 ni com For more information about configuring the SCB 68 for a DAQ device refer to the Measurement amp Automation Explorer Help for NI DAQmx 11 Test specific device functionality Refer to the DAQ Getting Started Guide for detailed information about running test panels in MAX When
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