Measurement DBK208 User Manual

DBK208 Relay Carrier Board

For Opto-22 Compatible Solid-State-Relays

Overview …… 1
Warnings, Cautions, and Tips …… 3
Power …… 4
External Power Watchdog …… 5
Operation …… 5
Software Setup …… 7
DBK208 – Specifications …… 9

Note:

The DBK208 provides: (a) two P2 connectors, (b) footprints for sixteen optically-isolated Solid­State-Relay (SSR) Modules, and (c) 16 dual-screw terminal blocks. DBK208 includes a 100-pin P4
connector for use with DaqBook/2000 Series Devices, DaqBoard/2000 Series Boards, and /2000c
Series Boards.

This product is not used with:
LogBook
DaqBook/100 Series devices
DaqBoard/100 (ISA-type) Series devices

Reference Notes:

In regard to calculating system power requirements refer to the DBK Basics section.
Chapter 2 includes pinouts for P1, P2, P3, and P4. Refer to pinouts applicable to your

system, as needed.

Overview

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

The matrix is located just before this 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.

DBK208 Carrier Board for Opto-22 Compatible Solid-State-Relays

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 these boards
are subset connectors of the 100-pin P4 connector. Chapter System Connections and Pinouts, includes
pinouts for P1, P2, P3, and P4.

The information included in this section, when combined with that found in the related DBK option cards
and modules subsections should enable you to set up your desired configuration.

DBK208 is a two-bank carrier board for optically-isolated Solid-State-Relay (SSR) modules. Each bank
supports up to eight digital I/O modules. The banks can be independently set as “input” or “output” via
jumpers (JP0 for Bank 0, and JP1 for Bank 1). The I/O modules are industry standard Opto-22 compatible,
5-volt logic level modules.

DBK Option Cards and Modules 987594 DBK208, 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.

Note 1: DBK208 is not used with DaqBoard/2003.
Note 2: DBK208 can be used with DaqBook/200 and Daqboard/200 (ISA-type) series devices;

but should not be used with DaqBook/100 or DaqBoard/100 (ISA-type) series devices.

DBK208, pg. 2

DBK208 Block Diagram

DBK208 boards are typically installed in NEMA-type panels; however, they may alternatively 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).

DBK208 is controlled digitally from the Daq device (DaqBook or DaqBoard) through one of two
connectors, as follows:

DaqBook/200 Series Devices – control is through the 37-pin P2 digital port of the DaqBook and one of two DBK208
P2 connectors.

DaqBoard/200 Series boards [ISA-type] - control is through the 37-pin P2 digital port of the DaqBoard and one of
the DBK208 P2 connectors.

DaqBook/2000 Series Devices, DaqBoard/2000 Series boards, and cPCI DaqBoard/2000c Series boards – control
originates in the board’s 100-pin P4 connector. Connection of these boards to DBK208 can be made directly or
indirectly as follows:

• Direct connection can be made from the 2000 series board’s 100-pin P4 connector to a DBK208’s P4

connector via a CA-195 cable.
Indirect connection can be made using one of the DBK200 Series P4-adapters that includes a 37-pin P2

•

connector (DBK201, DBK202, DBK203, DBK204, DBK206, DBK209, or another DBK208). CA-37
cables are used to connect from P2 to P2.

987594 DBK Option Cards and Modules

Note that a single Daq-based data acquisition system can support up to 16 DBK208 boards, providing a
total of 256 channels. DBK208 boards contain two DB37 P2 connectors for the purpose of daisy-chaining
to other DBK208s or to other P2-supported devices.

The following illustration is an example of a Data Acquisition System that includes two DBK208 boards
for digital I/O. The two DBK208 boards are daisy-chained to a DBK209 P2 connector. The DBK209 is
connected to a DaqBoard/2000 Series board via a CA-195 cable.

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.

WARNING

CAUTION

DBK Option Cards and Modules 987594 DBK208, pg. 3