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HPM-2002-OBEVacuum Gauge Page 23 of 39
3.4. DeviceNet
TM
The HPM-2002-OBE with DeviceNet option is shown in figure below.
3.4.1. Overall Functional Description
The DeviceNet module consists of a power conversion/sensor transducer board, microprocessor board
and a user interface option board. All communication is conducted via a 5-pin “Micro” style with center pin,
male pin contacts. The module has passed the ODVA DeviceNet test and conforms to the vacuum/pressure
gauge device profile; an Electronic Data Sheet (EDS) with limited features is also available upon request.
3.4.2. DeviceNet description
DeviceNet is a low-level network that provides connections between industrial devices (sensors and
actuators) and higher-level devices (controllers). Both power and high speed digital signaling are contained
within the same cable. Controller Area Network (CAN) protocol is used to transfer commands and data across
the bus. Up to 64 nodes are addressable per network.
Some of the user benefits of using DeviceNet are:
• Reduced hardwiring and reduced start-up time through the use of standardized cables for the Trunk
and Branch lines, in addition to standardized Taps for making physical interconnections.
• Ease of integrating products from multiple vendors. More than 250 vendors produce DeviceNet
products.
For more information, contact the Open DeviceNet Vendor Association (ODVA) at their web site.
http://www.odva.org