6
Chapter 1
Introducing the OMB-DAQ-TC-RACK
The OMB-DAQ-TC-RACK is a dual-interface data acquisition device that provides the following features:
32 differential thermocouple (TC) inputs, expandable to 64 channels with the
OMB-DAQ-TC-RACK-EXP32 expansion device
Two 24-bit ADCs (one ADC per 16 inputs)
TC channels field-to-host isolation
3 S/s per update rate
Support for type J, K, R, S, T, N, E, and B thermocouples, software-selectable per channel
One integrated cold junction compensation (CJC) sensor per TC input
Open thermocouple detection (OTD) to detect faulty TC connections
8 digital inputs, isolated from TC and host
32 digital outputs/alarms isolated from TC inputs and host
DIO connections are made to 50-pin header connector
USB 2.0 or 10/100 Ethernet interface
Powered by the in5 V external power adapter (OMB-DAQ-TC-RACK-PS)
Ethernet interface
The OMB-DAQ-TC-RACK has a built-in 10/100 BASE-T auto-negotiation, high-speed communication port.
With the Ethernet interface, you can remotely access and configure your OMB-DAQ-TC-RACK from
anywhere on the network. Only one computer can control the OMB-DAQ-TC-RACK at a time.
A unique
media access control
(MAC) address is assigned to each device at the factory. You configure the
Ethernet connection settings through software. The network name uses the format
TC-32-xxxxxx
, where
xxxxxx
are the lower six digits of the factory-assigned MAC address.
USB interface
The OMB-DAQ-TC-RACK is a USB 2.0 full-speed device that is compatible with USB 3.0 ports. The device is
also compatible with USB 1.1 ports.
1
40-pin ribbon cable for the
EXPANSION
connector is included with the OMB-DAQ-TC-RACK-EXP32.