NI SCC Series User manual

SCC Quick Start Guide
This document explains how to install and configure National Instruments
Signal Conditioning Components (SCC) modules with NI-DAQmx. SCC
modules work with NI M Series, E Series, and B Series DAQ devices. This
document assumes you have already installed, configured, and tested the
data acquisition (DAQ) device you will connect to the SC-2345/2350
carrier. If you have not done so, refer to the DAQ Getting Started Guide
included with the DAQ device, available on the NI-DAQ CD, and from
ni.com/manuals before continuing.
Throughout this document, abbreviations containing XX are used to refer to
families of related device model numbers.
SCC-AIXX—refers to the SCC-AI01, SCC-AI02, SCC-AI03, SCC-AI04,
SCC-AI05, SCC-AI06, SCC-AI07, SCC-AI13, and SCC-AI14.
SCC-LPXX—refers to the SCC-LP01, SCC-LP02, SCC-LP03, and
SCC-LP04.
SCC-TC0X—refers to the SCC-TC01 and SCC-TC02.
SCC-XX—refers to any SCC module.
SCC-SGXX—refers to the SCC-SG01, SCC-SG02, SCC-SG03,
SCC-SG04, and SCC-SG24.
Step 1. Unpack the Carrier and Modules
Remove the module from the package and inspect the module for loose
components or any sign of damage. Notify NI if the module appears
damaged in any way. Do not install a damaged module into the carrier.
For safety and compliance information, refer to the device documentation
packaged with your device at ni.com/manuals, on the NI-DAQ CD, or
accessible from Start»Programs»National Instruments»NI-DAQ»
Browse Device Documentation, after you install the DAQ documentation
browser.

SCC Quick Start Guide 2 ni.com
The following symbols may be on your device:
This icon denotes a caution, which advises you of precautions to take to
avoid injury, data loss, or a system crash. When this symbol is marked on
the product, refer to the Read Me First: Safety and Radio-Frequency
Interference document, shipped with the product, for precautions to take.
When symbol is marked on a product, it denotes a warning advising you to
take precautions to avoid electrical shock.
When symbol is marked on a product, it denotes a component that may be
hot. Touching this component may result in bodily injury.
Step 2. Verify the Components
Make sure you have the following SCC system components.
In addition, you need the following items:
❑Hardware and documentation
– 68-pin DAQ device and documentation
– 68-pin shielded cable
– SC-2345/2350 carrier and SC-2345/2350 Carrier User Manual
– One or more SCC modules and user guide
❑Software and documentation
– NI-DAQ 7.2 or later software and documentation
– One of the following software packages for development:
•LabVIEW
•LabWindows
™/CVI™
1 SCC Module
2 Power Module
3 SCC Carrier
4 Shielded Cable
5DAQDevice
6 Personal Computer
456
21
SCC-
XXXX
3
68PositionESeriesPinNumbers andNames
TerminalBlockDefinition
RowB RowC
Possible SCC Configurations
(Colorindicates stripe on SCC)
RowA
P/N184114A-01
Reference Label
SC-2345 Quick

©National Instruments Corporation 3 SCC Quick Start Guide
• Visual C++
• Visual Basic
❑Other tools
– 1/8 in. flathead screwdriver
– Numbers 1 and 2 Phillips screwdrivers
– Wire insulation strippers
To install NI-DAQmx, refer to the DAQ Getting Started Guide. To install
the SC-2345/2350 carrier, refer to the SC-2345/2350 Carrier User Manual.
These documents are available for at ni.com/manuals.
Step 3. Cable the SC-2345/2350 Carrier to
the DAQ Device
Caution Refer to the Read Me First: Safety and Radio-Frequency Interference document
before removing equipment covers or connecting or disconnecting any signal wires.
Follow proper ESD precautions to ensure you are grounded before installing the hardware.
The DAQ device should already be installed in your computer. Refer to the
DAQ Getting Started Guide for installation instructions.
Connect the SC-2345/2350 carrier to the DAQ device with a 68-pin
shielded cable. If you are using an M Series DAQ device with
two connectors, connect the cable to connector 0 or 1. Use connector J24,
shown in Figure 1, on the SC-2345/2350 carrier.

SCC Quick Start Guide 4 ni.com
Figure 1. Connector J24 Location
The chassis ground terminal on the SC-2345/2350 carrier and the
electromagnetic interference (EMI) gasket attached to the strain relief of
the SC-2345 connector block are for grounding a floating source (1 mA
maximum). Do not use these terminals as safety earth grounds. For more
information about the SC-2345/2350 carrier, refer to the SC-2345/2350
Carrier User Manual.
Figure 2 shows the SC-2345 carrier with the signal wires connected.
Figures 3 and 4 show the two types of cabling on the SC-2345 with
configurable connectors.
1 Connector J24 2 Power LEDs 3 SC-2345 Carrier
2
1
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
General Purpose
Counter/Timer
Channel 0
General Purpose
Counter/Timer
Channel 1
Analog Output
DAC 1
Analog Output
DAC 0
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
3

©National Instruments Corporation 5 SCC Quick Start Guide
Figure 2. SC-2345 Carrier Installation Diagram
Figure 3. Installing a Rear Cabled SC-2345 with Configurable Connectors
1 Screw Terminals
2 SCC Modules
3 Cover Screws
4 68-Pin Shielded Cable
5 Quick Reference Label
6 SCC-PWR
XX
7 SCC Connector Block Socket
8 Screw Terminal Block
9 Top Strain-Relief Bar
10 Top Strain-Relief Screws
1 68-Pin Shielded Cable
2 Strain-Relief Panelette
3 SCC Modules
4 SCC Connector Block Socket
5 BNC Panelette
6 Power LEDs
7 SCC-PWR
XX
8 Screw Terminals
9 Screw Terminal Block
10 Top Cover
11 Cover Screws
68PositionE Series Pin Numbers andNames
Terminal BlockDefinition
RowB RowC
Possible SCC Configurations
(ColorindicatesstripeonSCC)
RowA
P/N184114A-01
Reference Label
SC-2345 Quick
7
5
10
3
2
SCC-
XXXX
SCC-
XXXX
SCC-
XXXX
8
6
4
1
9
CH1 CH2
4
3
2
1
9
8
711
10
6
SCC-
XXXX
SCC-
XXXX
SCC-
XXXX
SCC-
XXXX
5

SCC Quick Start Guide 6 ni.com
Figure 4. Installing a Side Cabled SC-2345 with Configurable Connectors
Step 4. Set Up the SC-2345/SC-2350 Carrier
The following section describes how to set up common to both the SC-2345
and the SC-2350 carriers.
Procedure 1: Install the Connectors and Panelettes
If you have selected an SC carrier with configurable connectors, install the
connector and interface panelettes. Some panelettes occupy more than
one panelette slot. Table 1 lists the panelette specifications.
1 Cover Screws
2 Top Cover
3 Screw Terminals
4 SCC Modules
5 Strain-Relief Panelette
6 Screw Terminal Block
7 68-Pin Shielded Cable
8 Power LEDs
9 SCC-PWR XX
10 BNC Panelette
11 SCC Connector Block Socket
Table 1. Panelette Options
Panelette Description
Connectors/Units
per Panelette Slot Width
Mini-thermocouple jack
J- or K-type 2 1
Uncompensated 2 1
Thermocouple jack
J- or K-type 1 1
Uncompensated 1 1
BNC BNC connector 2 1
SMB SMB connector 4 1
Banana jack Banana jack 2 1
CH1CH2
6
7
2
10
9
8
345
11
SCC-
XXXX
SCC-
XXXX
SCC-
XXXX
SCC-
XXXX
1

©National Instruments Corporation 7 SCC Quick Start Guide
You can install a blank panelette into any unused panelette opening.
Complete the following steps to install the I/O panelettes:
1. Remove the blank panel before installing any I/O panelettes on the rear
of the SC-2345/2350 with configurable connectors.
2. Place the lower edge of the I/O panelette in the groove at the bottom of
the enclosure opening.
3. Tilt the panelette top back into the enclosure.
4. Secure the panelette with either one, two, or three (depending on the
type of I/O panelette) M2.5 ×6 panhead screws that are included with
the panelette.
5. Connect the lead wires from the panelette to the screw terminals of the
SCC modules or to the 42-pin screw terminal block inside the
SC-2345/2350 carrier.
Procedure 2: Apply I/O Panelette Labels
The SC-2345 with Configurable Connectors and the SC-2350 are shipped
with a sheet of labels to apply to the I/O panelettes as shown in Figure 5.
The label sheet has both printed labels and blank labels you can customize.
LEMO (B-Series)
2-pin female 2 1
4-, 6-pin female 1 1
MIL-Spec 2-, 4-, 6-pin female 1 1
9-pin D-SUB
Single (male) 1 2
Single (female) 1 2
Dual (male) 2 3
Dual (female) 2 3
Momentary switch On – off 2 1
Toggle switch On – off – on 2 1
Rocker switch On – off – on 1 1
LED Red, green, yellow, and orange LEDs 4 1
Potentiometer 1 turn, 10 1 1
Strain relief Small strain relief 1 2
Blank Filler panel — —
Table 1. Panelette Options (Continued)
Panelette Description
Connectors/Units
per Panelette Slot Width

SCC Quick Start Guide 8 ni.com
You can use two labels on single-width I/O panelettes and three or more
labels on wider panelettes.
Figure 5. Installing I/O Panelette Labels
Step 5. Connect the Signals
Caution Always refer to the specifications in your SCC-XX module user guide before
connecting signals. Exceeding specified module ratings can create a shock or fire hazard
and can damage any or all of the devices connected to the module.
Refer to ni.com/info and enter info code rdtntg to confirm signal
names in the NI-DAQ C to NI-DAQmx Terminal Names Translation Guide.
Complete the following steps:
1. Remove power from the signal lines.
2. Strip 7 mm (0.25 in.) of insulation from the ends of the signal wires.
3. Insert the wires into the screw terminals. The SCC-XX module has a
fixed screw-terminal receptacle and a removable screw-terminal block,
as shown in Figure 6.
Figure 6. SCC-XX Two-Part Screw-Terminal System
1 I/O Panelette 2 Labels
1 SCC Screw-Terminal Receptacle 2 Removable Screw-Terminal Block
2
1
3
2
1
4
1
2

©National Instruments Corporation 9 SCC Quick Start Guide
4. Tighten the screws to 0.5 to 0.6 N · m (4.4 to 5.3 lb – in.) of torque.
5. Check if the strain-relief bar is installed as shown in Figures 3, 4,
and 5. If necessary, reinstall and tighten the strain-relief screws.
6. Close or replace the top cover.
7. Reinsert and tighten the cover screws to ensure proper shielding.
For complete signal-connection information, refer to the SCC-XX module
user guide. For more information about using the SC-2345, refer to the
SC-2345/2350 Carrier User Manual.
SC-2350: Connecting TEDS Sensors
If you are using an IEEE P1451.4 Transducer Electronic Data
Sheet-compatible smart sensor, complete the following steps to connect the
TEDS DATA and RETURN signals. Refer to Figure 7 when completing
the following steps.
1. Connect the DATA signal to the DATA+ screw terminal on the TEDS
screw terminal.
2. Connect the RETURN signal to the RETURN screw terminal on the
TEDS screw terminal.
Figure 7. TEDS DATA+ and RETURN Connections
1 DATA+ 2 2 DATA+ 10 3 RETURN 10 4 RETURN 2
DATA+ 2/10
RETURN 2/10
J27
1
4
2
3
01

SCC Quick Start Guide 10 ni.com
Figure 8 shows the SC-2350 carrier with the SCC modules installed.
Figure 8. SC-2350 Carrier Installation Diagram
Connecting Digital Signals (Optional)
The SC-2345/2350 has a 42-position, triple-row screw-terminal block for
connecting to DAQ device digital signals. Depending on the DAQ device
you are using, you can connect the terminal block to various digital signals.
Refer to Figure 10 for signals of E Series, B Series, or M Series
Connector 0. The SC-2345 Quick Reference Label identifies the location
of each signal on the terminal rows A to C. The terminal label numbers
correspond to the pin number location of each signal on the 68-pin DAQ
device connector. Refer to the DAQ device documentation for more
information about this connector.
1 Cover Screws
2 Screw Terminal Block
3 TEDS Screw Terminal
4 SCC Modules—Analog Output
5SCC-PWR
XX
6 D-SUB Panelette
7 SCC Modules—Analog Input
8 Connector Block Sockets
9 TEDS Screw Terminal: RETURN Screw Terminal
10 TEDS Screw Terminal: DATA+ Screw Terminal
11 Strain-Relief Panelette
23
4
5
6
7
8
9
10
11
1

©National Instruments Corporation 11 SCC Quick Start Guide
Figure 9. Terminal Block I/O Connector Pin Assignments of E Series Devices
Note Refer to the M Series Help for pin assignments of M Series devices.
♦SC-2345 connector block (The following does not apply to the SC-2345
with configurable connectors or to the SC-2350.)
A metallized nylon knit EMI gasket is attached to the strain-relief bars of
the SC-2345 connector block. Using shielded cables to connect the signals
allows you to ground the shielded signal cables. Stripping the insulation
away from the shield of the cables forms a chassis ground connection at the
strain-relief bar. To avoid adding noise to the signal, ground the cable shield
only at one end. For complete signal connection information, refer to the
SCC-XX module user guide. For more information about using the
SC-2345, refer to the SC-2345/2350 Carrier User Manual.
SCC Module Installation Considerations
SCC modules are required for connecting to the analog inputs or analog
outputs of the DAQ device. You do not need to use SCC modules to
connect to the CTR and P0.Xsignals of the DAQ device, which are
accessible from the SC-2345 carrier. Refer to the SC-2345/2350 Carrier
User Manual for more information.
Each SCC module has a lengthwise color stripe label on the top, as
illustrated in Figure 10, that indicates the module type and function
classification of the module and displays a corresponding icon.
P0.0
P0.2
P0.4
P0.6
+ 5 V
PFI 0/AI START TRIG
PFI 2/AI CONV CLK
PFI 4/CTR 1 GATE
PFI 6/AO START TRIG
PFI 8/CTR 0 SOURCE
PFI 12/CTR 0 OUT
PFI 14/FREQ OUT
Not Used
Not Used
52
49
19
16
14
11
43
41
5
37
2
1
A
D GND
D GND
D GND
D GND
D GND
D GND
D GND
D GND
D GND
D GND
D GND
D GND
D GND
Not Used
53
18
50
15
13
12
44
9
7
39
36
4
35
B
P0.1
P0.3
P0.5
P0.7
PFI 11/AI HOLD COMP
PFI 1/AI REF TRIG
PFI 3/CTR 1 SOURCE
PFI 5/AO SAMPLE CLK
PFI 7/AI SAMP CLK
PFI 9/CTR 0 GATE
PFI 14/CTR 1 OUT
PFI 10/EXTSTROBE*
AI SENSE
Not Used
17
47
51
48
46
10
42
6
38
3
40
45
62
C

SCC Quick Start Guide 12 ni.com
Figure 10. SCC Module
For more information about SCC module types, accompanying icons, label
color, and measurement types, refer to Table 2.
1 SCC Screw-Terminal Receptacle
2 Label Color Stripe
3 SCC Module Name
Table 2. SCC Modules: Icon, Label Color, and Measurement Type
SCC Module Icon Label Color Measurement Type
SCC-ACC01 Blue Analog Input
SCC_AIXX Blue Analog Input
SCC-A10 Blue Analog Input
SCC-CI20 Blue Analog Input
SCC-FV01 Blue Analog Input
SCC-LPXX Blue Analog Input
SCC-RTD01 Blue Analog Input
SCC-
XXXX
1
2
3
ACC
INPUT
IIN VOUT
0–100Hz
Hz
RTD

©National Instruments Corporation 13 SCC Quick Start Guide
The SC-2345 carrier and the SC-2350 carrier each have different
functionality and SCC module configurations. The following sections
cover carrier-specific information relative to SCC module installation.
SCC-SG Refer to the SCC-SG Series Strain Gage Modules User
Guide.
Blue Analog Input
SCC-TC0XBlue Analog Input
SCC-FT01 N/A Analog Input,
Analog Output,
Digital, GPCTR
SCC-DI01 Green Digital
SCC-DO01 Green Digital
SCC-RLY01 Green Digital
SCC-CO20 Red Analog Output
SCC-AO10 Red Analog Output
SCC-CTR01 sYellow General Purpose
Counter/Timer
Table 2. SCC Modules: Icon, Label Color, and Measurement Type (Continued)
SCC Module Icon Label Color Measurement Type
TC
IN OUT
N.O.
COM
N.C.
3)
2)
1)
ISO
0–20mA
1)
3)
2)
ISO
±10V
+
–
GATE
OUT
SRC
48V ISO
400 kHz

SCC Quick Start Guide 14 ni.com
SC-2345 Carrier Considerations
The following section provides information specific to the SC-2345 carrier.
Quick Reference Label
Affix the Quick Reference Label to the inside cover of the SC-2345.
This label, shown in Figure 11, shows the possible configurations of SCC
modules. The Quick Reference Label also lists the location of each signal
on the SC-2345 carrier modules. The numbers on the label correspond to
the terminal numbers on the connector of the DAQ device.
Figure 11. SCC Module Configurations by Socket,
Function Classification, and Color Code
Blue
Green
Red
Yellow
Legend:
Dual-Stage
Analog Input
J1-8
J9-16
2nd Stage
Analog Input
Socket
1st Stage
Analog Input
Socket
Single-Stage
Analog Input
and/or Digital I/O
J1-8
J9-16
Analog Input
Single Stage
Socket (Optional)
Digital I/O
Socket (Optional)
Analog Output
and/or
GPCTR
J17-18
J19-20
Analog Output
Socket*
(Optional)
*Analog Output is not available
on AI E Series boards
General-Purpose
Counter/Timer
Socket (Optional)

©National Instruments Corporation 15 SCC Quick Start Guide
SC-2345 Carrier Diagrams
Figures 12, 13, and 14 show diagrams of the three types of SC-2345
carriers.
Figure 12. SC-2345 Carrier Diagram
1 SCC Socket
2 SCC Socket Reference Designator
3 SCC Key Slot
4 Serial Number
5J24
6J25
7J21
8 Power LEDs
9 Screw-Terminal Block
10 Grounding Terminal Lug
11 Assembly Number
1
2
3
4 5
6
7
9
10
11
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
General Purpose
Counter/Timer
Channel 1
General Purpose
Counter/Timer
Channel 0
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Analog Output
DAC 1
Analog Output
DAC 0
8

SCC Quick Start Guide 16 ni.com
Figure 13. SC-2345 with Configurable Connectors (Rear Cabled) Carrier Diagram
Figure 14. SC-2345 with Configurable Connectors (Side Cabled) Carrier Diagram
1 Power LEDs
2J21
3 Serial Number
4 Assembly Number
5 Screw-Terminal Block
6J25
7J24
8SCCKeySlot
9 SCC Socket Reference Designator
10 SCC Socket
1 SCC Socket Reference Designator
2 SCC Socket
3 SCC Key Slot
4 Screw-Terminal Block
5 Assembly Number
6 Serial Number
7J24
8 Power LEDs
9J25
10 J21
6
7
4
3
1
5
10
9
8
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
General Purpose
Counter/Timer
Channel 0
General Purpose
Counter/Timer
Channel 1
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Analog Output
DAC 0
Analog Output
DAC 1
2
1
2
3
4
5
6
7
9
10
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
Digital I/O
or 1st Stage
of a Dual Stage
AI Configuration
General Purpose
Counter/Timer
Channel 0
General Purpose
Counter/Timer
Channel 1
Analog Output
DAC 1
Analog Output
DAC 0
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
Single Stage AI
or 2nd Stage
of a Dual Stage
AI Configuration
8

©National Instruments Corporation 17 SCC Quick Start Guide
SC-2350 Carrier Considerations
The SC-2350 has integrated software support for Transducer Electronic
Data Sheet (TEDS) sensors. For more information about using TEDS with
SCC modules, refer to the SC-2345/2350 Carrier User Manual.
The SC-2350 carrier has 16 channels of analog input sockets, J1 to J8, in
one row of eight sockets. You can use any analog input SCC module in a
single-stage analog input configuration. In addition, it contains two analog
output sockets, J17 and J18, for outputting up to two channels of data with
the appropriate SCC modules inserted.
The SC-2350 does not support dual-stage configuration or digital signals,
so you cannot use the SC-2350 carrier with the SCC-DI01, SCC-DO01, or
SCC-RLY01 or SCC-CTR01 modules. Figure 15 shows the locations of the
SCC module sockets, screw-terminal block, and other parts on the SC-2350
carrier.
Figure 15. SC-2350 Carrier with TEDS
1 SCC Socket Reference Designator
2 SCC Socket
3 SCC Key Slot
4 50-Pin Test Header
5 Serial Number
6 Assembly Number
7 Screw-Terminal Block
8J24
9 Power LEDs
10 J25
11 J21
COPYRIGHT 2003
DATA+ 0/8
RETURN 0/8
DATA+ 1/9
RETURN 1/9
DATA+ 2/10
RETURN 2/10
DATA+ 3/11
RETURN 3/11
DATA+ 4/12
RETURN 4/12
DATA+ 5/13
RETURN 5/13
DATA+ 6/14
RETURN 6/14
DATA+ 7/15
RETURN 7/15
DATA+ 0/1
RETURN 0/1
TEDS CONNECTIONS FOR ANALOG INPUT TEDS ANALOG
OUTPUT
J33 J30 J27 J31 J29 J28 J34 J26 J32
AI 0/8 AI 1/9 AI 2/10 AI 3/11 AI 4/12 AI 5/13 AI 6/14 AI 7/15 AO 0 AO 1
J21
J25
J24
4 5 6 7
8
10
9
11
1
2
3
Analog Input
AI 0/8
Analog Input
AI 1/9
Analog Input
AI 2/10
Analog Input
AI 3/11
Analog Input
AI 4/12
Analog Input
AI 5/13
Analog Input
AI 6/14
Analog Input
AI 7/15
Analog Output
AO 0
Analog Output
AO 1
©

SCC Quick Start Guide 18 ni.com
Step 6. Install the Modules
When properly oriented, SCC modules plug easily onto the connector
block socket. Never force an SCC module onto the socket.
To install the SCC modules on the connector block sockets of the
SC-2345/2350 carrier, complete the following steps:
1. Remove the cover screws on either side of the top cover with a
Number 1 Phillips screwdriver. Open or remove the top cover.
2. If your carrier is equipped with a strain relief module, loosen the
strain-relief screws with a Number 2 Phillips screwdriver and slide the
signal wires through the strain-relief opening. If you are connecting
multiple signals, you may need to remove the top strain-relief bar.
3. Plug the SCC modules onto the appropriate connector block sockets.
Refer to the Device-Specific Information section of the SCC-XX
module user guides for the socket requirements of the SCC modules.
Analog Input SCC Modules
Analog input sockets are arranged in aligned pairs so that sockets J(X+1)
and J(X+9) form a pair, for all X0 to 7. The SC-2345 routes analog input
signals to the DAQ device channels AI (X) and AI (X+8). For example, if
you plug an SCC-A10 voltage attenuator module into socket J4, the signal
on one channel is routed to AI 3 and the signal on the other channel is
routed to AI 11. Refer to ni.com/info and enter info code rdtntg to
confirm signal names in the NI-DAQ C to NI-DAQmx Terminal Names
Translation Guide.
Single-Stage Analog Input Conditioning
For single-stage analog input conditioning, plug the SCC module into any
socket J1 to J8 and connect the I/O signals to it. In a single-stage analog
input SCC configuration, you connect your external signal to an SCC
module that conditions the signal and passes it to the DAQ device.
Dual-Stage Analog Input Conditioning
For dual-stage analog input conditioning, plug the first-stage SCC module
into any socket J(X+9) and plug the second-stage SCC module into the
corresponding paired socket, J(X+1). Connect the input signals to the
first-stage SCC module, and none to the second-stage SCC. The SC-2345
connects the output signals of the first-stage SCC modules to the inputs of
the second-stage SCC modules and routes the outputs of the second-stage
modules to DAQ device channels AI (X) and AI (X+8). An example of
dual-stage conditioning is a voltage attenuator SCC module followed by a

©National Instruments Corporation 19 SCC Quick Start Guide
lowpass filter SCC module. Figure 16 shows how to install analog input
modules on the SC-2345 carrier.
Sometimes, you can cascade two analog input SCC modules together on a
single analog input channel to form a dual-stage configuration. The first
stage of a dual-stage analog input configuration can be in sockets J9 to J16.
The second stage of a dual-stage analog input configuration can be in
sockets J1 to J8.
Figure 16. Single- and Dual-Stage Analog Input SCC Configuration
for SC-2345 Connector Block Socket
Table 3 shows all the analog input SCC modules that you can configure
on the SC-2345 carrier and whether the modules support single-stage,
dual-stage, or both configurations.
A Single-Stage Analog Input
B Dual-Stage Analog Input
1 J9 Connector Block
(SCC Module Not Installed)
2 Analog SCC Plugged into J1
3 SC-2345 Carrier
4 Analog SCC Plugged into J9
5 First Stage
6 Second Stage
7 Do Not Connect Any Signals to
the Second-Stage SCC
Table 3. SCC Modules and Dual-Stage Compatibility
SCC Modules
Single-Stage Analog
Input (J1–J8)
First Stage of Dual-Stage
Analog Input (J9–J16)
Second Stage of Dual-Stage
Analog Input (J1–J8)
SCC-AIXX Ye s Ye s No
SCC-A10 Ye s Ye s No
SCC-RTD01 Ye s Ye s No
SCC-CI20 Ye s Ye s No
SCC-ACC01 Yes Ye s No
SCC-TC0XYe s Ye s No
SCC-FV01 Ye s No Ye s
SCC-LPXX Ye s Ye s Yes
SCC-XXXX
3
2
1
SCC-XXXX
3
2
1
SCC-XXXX
3
2
1
5
A
6
B
4
2
2
1
33
7

SCC Quick Start Guide 20 ni.com
Digital SCC Modules
Sockets J9 to J16 work for digital SCC modules as well as for analog
inputs. Plug a digital SCC module into any socket J(X+9), where Xis 0 to 7,
and connect the P0. signal to the module. The SC-2345 routes the P0. signal
to the DAQ device channel P0.(X). Figure 17 illustrates a digital module
with an analog input module.
Figure 17. Single-Stage Analog Input and DIO SCC Configuration
for SC-2345 Connector Block Socket
Analog Output SCC Modules
You can plug analog output SCC modules into the SC-2345 using sockets
J17 and J18. Each socket connects to both analog output channels of the
DAQ device although each is identified on the SC-2345 as being for either
channel 0 or channel 1. These designations indicate the primary analog
output channel each socket uses. Analog output channel 0 is the primary
channel for socket J17. Analog output channel 1 is the primary channel for
socket J18.
GPCTR SCC Modules
Plug the SCC-CTR01 general purpose counter timer module into socket
J19 or J20 of the SC-2345. Socket J19 connects to the DAQ device
general-purpose counter timer channel 0. Socket J20 connects to general
purpose counter timer channel 1.
SCC-FT01 Ye s Ye s Ye s
SCC-SGXX Ye s Ye s No
1 SC-2345 Carrier
2 Input Signals
3 Digital SCC Plugged into J9
4 Analog SCC Plugged into J1
Table 3. SCC Modules and Dual-Stage Compatibility (Continued)
SCC Modules
Single-Stage Analog
Input (J1–J8)
First Stage of Dual-Stage
Analog Input (J9–J16)
Second Stage of Dual-Stage
Analog Input (J1–J8)
3
2
1
SCC-XXXX
3
2
1
SCC-XXXX
4
3
42
1