Measurement DBK207 User Manual

DBK207 and DBK207/CJC 5B Carrier Boards

For 5B-Compatible Analog Input Modules

Overview …… 1
Warnings, Cautions, and Tips ……. 3
Power Considerations …… 4
External Ground Connection …… 4
Channel Configuration …… 5
5B Module Connection …… 5
Terminal Block Connection …… 6
Connecting DBK207 or DBK207/CJC to a Daq Device …… 7
Software Setup …… 7
DBK207 and DBK207/CJC – Specifications …… 8

Note:

Overview

The DBK207 and DBK207/CJC each provide: (a) two P1 connectors, (b) footprints for sixteen 5B
Modules, (c) 16 terminal blocks. In addition, DBK207/CJC provides Cold Junction Compensation.
The DBK207 and DBK207/CJC each include a 100-pin P4 connector for use with DaqBoard/2000
Series and cPCI DaqBoard/2000c Series Boards, and DaqBook/2000 Series devices.

This product is not used for LogBook applications.

Reference Notes:

In regard to calculating system power requirements refer to the DBK Basics section.
For information regarding a related product with a different form-factor, refer to the

DBK44, 2-Channel 5B Signal-Conditioning Card section of this manual.

Chapter 2 includes pinouts for P1, P2, P3, and P4. Refer to pinouts applicable to your

system, as needed.

For a quick comparison of all DBK200 Series boards, refer to the DBK200 Series Matrix.

The matrix is located just before the DBK200 section.

Refer to the DaqBoard/2000 Series and cPCI DaqBoard/2000c Series User’s Manual

(p/n 1033-0901) or the DaqBook/2000 Series User’s Manual (p/n 1103-0901) for information
pertaining to those products, as needed.

The DaqBoard/2000 Series and cPCI DaqBoard/2000c Series boards communicate [external from the host
PC] through a 100-pin P4 connector. The P1, P2, and P3 connectors discussed in association with
DaqBoard/2000 Series and cPCI DaqBoard/2000c Series boards are subset connectors of the 100-pin P4
connector that is located on those boards. Chapter System Connections and Pinouts, includes pinouts for
P1, P2, P3, and P4.

DBK207/CJC Carrier Board for 5B Compatible Modules

DBK Option Cards and Modules 987594 DBK207 and DBK207/CJC, pg. 1

WARNING

Ensure that hard-wire emergency over-ride circuitry exists for all applications that
make use of dangerous switch-loads. Do not operate such switch-loads unless
emergency over-ride circuitry is present.

The DBK207 and DBK207/CJC are carrier boards for 5B-compatible analog input modules. These options
each include two P1 connectors for analog expansion, a 5 VDC power terminal, and 16 signal terminal
blocks. DBK207 and DBK207/CJC are typically installed in NEMA-type panels; however, they may be
installed on DIN rails. Separate mounting instructions are included with Rack Mount Kit (part no.
Rack-DBK-3) and with DIN-rail Mount Kit (part no. DIN-DBK-1).

DBK207 and DBK207/CJC allow Daq-based acquisition systems to use various combinations of sixteen
5B signal-conditioning modules. 5B modules can accommodate a variety of signals, including low-level
thermocouple and strain-gage signals. Configuration options are flexible. You can select the type of signal
attached to each channel. One Daq device can support up to 16 DBK207 [or DBK207/CJC] boards,
providing a maximum of 256 isolated, analog input channels. Note that Daq devices scan the channels at
the same 10 µs/channel rate as other DBKs (256 scans in 2.56 ms in a full system).

Each user-installed 5B module offers 500 V isolation from the system and between channels. Both
DBK207 and DBK207/CJC include 16 screw-terminal blocks for signal inputs. In addition, the
DBK207/CJC includes cold junction compensators (CJCs) for use with thermocouple 5B modules.
Sockets are provided for user-installed AC1362 current-sense resistor modules, as discussed in
5B Module Connection on page 5 of this section.

Note 1: CJC is applicable to DBK207/CJC.
CJC does not apply to DBK207.
Note 2: Current requirement is dependent

Note 3: JP2 provides a means of obtaining

upon the 5B modules used as
discussed in Power Considerations.

an external earth ground. See Power
Considerations for details.

DBK207 and DBK207/CJC, pg. 2

DBK207 and DBK207/CJC Block Diagram

987594 DBK Option Cards and Modules

Warnings, Cautions, and Tips

Ensure that hard-wire emergency over-ride circuitry exists for all applications that
make use of dangerous switch-loads. Do not operate such switch-loads unless
emergency over-ride circuitry is present.

Turn off power to the host PC and externally connected equipment prior to connecting
cables or signal lines to the DBK. Electric shock or damage to equipment can result
even under low-voltage conditions.

Take ESD precautions (packaging, proper handling, grounded wrist strap, etc.)
Use care to avoid touching board surfaces and onboard components. Only handle

boards by their edges (or ORBs, if applicable). Ensure boards do not come into contact
with foreign elements such as oils, water, and industrial particulate.

Do not confuse connectors. Ensure that you only connect P1 I/Os to P1,
P2 I/Os to P2, and P3 I/Os to P3. Improper connection may result in equipment
damage.

1. Ensure that hard-wire emergency over-ride circuity exists for all applications that make use of

dangerous switch-loads. Do not operate such switch-loads unless emergency over-ride circuitry is
present.

WARNING

CAUTION

2. Provide raceways (protective wiring routes) for all external I/O wiring.

3. Keep external I/O wiring away from ribbon cables.

4. Keep external I/O wiring away from low-voltage signal wiring.

5. Provide approp riate strain-relief and physical restraint to ensure that the wiring is held securely in the

intended position, and without strain.

6. Ensure that all wiring with >5 0V potential is identified by the appropriate color cod es and that

warning labels are clearly visible.

7. Provide physical protection for the interface board. The level of protection is dependent upon the

board’s operating environment.

Partial DBK207/CJC

DBK Option Cards and Modules 987594 DBK207 and DBK207/CJC, pg. 3