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Fluke 2640A, 2645A user manual Network Primer

Models: 2645A 2640A

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Network Considerations

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Network Primer

2.Does the network contain more than one subnet? If so, what’s the IP address of my default gateway or router device?

3.Will all the routers route IP packets?

4.What are my domain and host names (optional)?

The minimum information you need to get is the IP Addresses for the PC and the instruments. If your network contains more than one subnet and you want to place the PC and one or more instruments in different subnets, you must also set the default gateway address and subnet mask on both the NetDAQ instrument and the PC.

Your Network Administrator may also need to know the Ethernet addresses of the PC Ethernet adapter and each NetDAQ instrument that you will attach to the network. Obtain the Ethernet address of the PC by running the hardware setup program supplied with the adapter hardware. Obtain the address of the NetDAQ instruments by using the front panel controls.

Please read “Network Primer” in this appendix for more information on IP addressing and the other information needed to operate NetDAQ on a general network.

Network Primer

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In the early days of computer networking, vendors used many proprietary communication schemes. These forced users to purchase equipment and software from one or a few companies. As networking became more popular, users placed pressure on vendors to establish standards to allow interoperation of various types of computers, operating system software, and interface hardware.

One of these standardization efforts was started by the DARPA agency of the U.S. Defense department. Another was headed up by the DEC and Xerox companies. This effort resulted in the Ethernet wiring and low-level protocol scheme. The DARPA effort resulted in the TCP/IP high-level protocols. Ethernet became an international standard by the efforts of the IEEE-802.3 committee. TCP/IP is the protocol used on the international Internet Network and is supported by consensus of the users of that network (many thousands of hosts).

The Sockets API was developed at U.C. Berkeley and was widely adopted by the UNIX community to support direct Host-to-Host communication within a TCP/IP network. WINSOCK is an MS Windows Dynamic Link Library (DLL) version of the original UNIX Sockets library and has been standardized by a large number of PC Software and Hardware Vendors.

To reduce the complexity of network schemes and to encourage interoperation between varieties of networks, the protocols are built up of several layers that are isolated from each other by well-described interfaces. Usually, the lowest layers of the protocol are implemented in hardware logic on the interface circuits used by

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Fluke 2640A, 2645A user manual Network Primer
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2645A, 2640A specifications

The Fluke 2640A and 2645A are advanced bench multimeters that represent a significant leap in measurement technology, designed primarily for electrical engineers and technicians who require precision and reliability in their readings. These multimeters are built to cater to complex applications in manufacturing, research, and development.

One of the standout features of the Fluke 2640A and 2645A is their high accuracy. With specifications that can reach up to 0.0035% DC Voltage accuracy, users can trust that their measurements will be consistent and precise. This is especially critical in fields like automated test equipment (ATE) where exact measurements can be crucial for product quality and safety.

Both models incorporate a large, easy-to-read display, making it convenient for users to view measurement results clearly from a distance. They also feature a wide measurement range, capable of handling a variety of tasks, from basic voltage and current measurements to more complex tasks such as resistance and temperature measurements with appropriate sensors.

The multimeters also stand out with their advanced data logging capabilities. The Fluke 2645A, for instance, can store up to 10,000 readings, allowing for extensive data collection and analysis without the need for constant monitoring. This is beneficial for long-term studies or processes that require continual oversight.

Connectivity is another key characteristic. Both the 2640A and 2645A support USB and RS-232 interfaces, which enable easy integration with computers and other devices for seamless data transfer. This feature is important for engineers who rely on software for data analysis and visualization.

Another notable technology included in these models is the Fluke Connect app compatibility, which allows users to remotely monitor measurements from their smartphones or tablets. This capability provides added flexibility, enabling technicians to work hands-free while still keeping an eye on process measurements.

Additionally, the Fluke 2645A comes with a graphical display option, allowing users to visualize measurement trends over time. This graphical representation can be invaluable for diagnosing issues or observing patterns in data.

In conclusion, the Fluke 2640A and 2645A multimeters offer exceptional performance with their high accuracy, extensive data logging, connectivity options, and advanced visualization capabilities. These features make them indispensable tools for professionals in a variety of fields, ensuring that they can achieve reliable results in their measurement endeavors.