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IEEE 999-1992

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IEEE Recommended Practice for Master/Remote Supervisory Control and Data Acquisition (SCADA) Communications
Best Price Guarantee Published: Feb 12, 1993 en - English 48 Pages
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IEEE Recommended Practice for Master/Remote Supervisory Control and Data Acquisition (SCADA) Communications

PUBLISH DATE 1993
PAGES 48
New IEEE Standard - Inactive-Withdrawn. The use of serial digital transmission by supervisory control and data acquisition (SCADA) systems having geographically dispersed terminals is addressed. These types of systems typically utilize dedicated communication channels, such as private microwave channels or leased telephone lines, which are limited to data rates of less than 10 000 bits/s. Wideband local networks used for high-speed data acquisition and control functions are excluded. This standard covers the communication channels, channel interfaces, message format, information field usage, and communication management. A standard message protocol is defined to the octet level, rather than to the bit level; most details at the bit level are left to the manufacturers of SCADA equipment to define and implement.
This recommended practice applies only to the use of serial digital transmission by supervisory control and data acquisition (SCADA) systems having geographically dispersed terminals. These types of systems typically utilize dedicated communication channels, such as private microwave channels or leased telephone lines, which are limited to data rates of less than 10 000 b/s. This recommended practice is not applicable to wideband local networks used for high-speed data acquisition and control functions. This recommended practice generally defines a standard message protocol to the octet level, rather than to the bit level; most details at the bit level are left to the manufacturers of SCADA equipment to define and implement. With the increased use of microprocessors in SCADA equipment, it is expected that decoding at the bit level will employ table look-up techniques rather than use hard-wired logic; therefore, such details need not be specified in order to reach a reasonable degree of compatibility. This recommended practice supports Sections 5.4 and 7.4 of IEEE Std C37.1-1987 [7].

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