GERDAU AÇOMINAS
OURO BRANCO PLANT
SUPERVISION SYSTEMS SPECIFICATION - HMI
FUNCIONALITY
Historic Name Date
Version 1.0
UF046506 - ROBSON WILSON M. NOGUEIRA
UF102283 - ANDERSON FURIERI
11/02/2005
Version 2.o
UF046506 - ROBSON WILSON M. NOGUEIRA
UF102283 - ANDERSON FURIERI
01/03/2005
Version 3.0 UF121370 – Ana Luiza de Oliveira Guimarães
15/04/2005
28/06/2005
Version 4.0 UF121370 – Ana Luiza de Oliveira Guimarães 27/04/2006
Supervision System Specification
File : Supervision Systems Specification – HMI_rev3.doc
Responsible
Robson Wilson M.Nogueira
Anderson Furieri
Situation x Validation
Construction
Production
ON Gerdau Açominas Information Technology Management Page: 2 of 9
Industrial Systems – Information Technology Management
TAG DEFINITIONS AND DIGITALS MNEMONICS FOR CONTROL AND SUPERVISION
Remark: Before using this standard, it’s necessary to identify the field equipment and
instruments. This standard is to help in the mnemonics’ elaboration added to this
identification, therefore creating a Tag that will be used in controlling and supervision
systems.
The assembly of tags must follow the below described:
The identification of each of the blocks must be done with capital letters and/or numerals.
Between the blocks there must exist the separator “_” (Underscore) or “ – “ (minus sign), in case the system
does not allow the “_” (Underscore).
The document list below must be utilized for creating new mnemonics
Example:
AAA_EEEEEE_PMMMM
1 Mnemonics Creation
1.1 Tag Mnemonics Elaboration for equipments
1.1.1 Philosophy
Objective
To have access and quick understanding to all information from control and supervision system.
Method
Through function abbreviations to be represented.
Remark
: For automation systems, which do not support the rules concerning size (see item 1.2),
adopt one of the following alternatives, according to the order below:
• Reduce the function mnemonic size to the minimum of 03 (three).
• Reduce the process component tag.
• Create a specific rule.
Form
Made of two parts: the prefix, also known as identifier, that informs the signal’s origin/type (Chart
1 - ) + the mnemonic which represents the element function.
Mnemonic
Ta
g
of instrument/e
q
ui
p
ment
Area where equipment is located
Identifier
Complete tag for the supervision
system
Supervision System Specification
File : Supervision Systems Specification – HMI_rev3.doc
Responsible
Robson Wilson M.Nogueira
Anderson Furieri
Situation x Validation
Construction
Production
ON Gerdau Açominas Information Technology Management Page: 3 of 9
Identifier Chart:
Function Type Code
Digital inlet I
Digital outlet Q
Memories M
Permission P
General X
Commands C
States E
Defects D
Selections S
Adjustments J
Return R
Chart 1 – Prefixes (Identifier)
1.1.2 General rules
1.1.2.1 Association
To be the faster in both ways, from mnemonic to function and from function to mnemonic.
Examples: FUNC associates quickly to functioning and functioning associates quickly to
FUNC.
1.1.2.2 Size
Limited to 5 (five) alphabetical characters at the maximum and three at the minimum.
1.1.2.3 Sequence
An additional character can be used (besides the foreseen limit) to identify the existence of
sequential functions, such as: 1, 2, 3 ....... e A, B, C,......(example: SOBR2 – 2º field inlet for
the overload of only one equipment).
Remark: When possible, the limit of characters shall not be above the limit.
1.1.2.4 Criteria
• If the fundamental function is composed by more than one word, use the first letter of
each word (example: ganho proporcional [proportional gain] mnemonic GP).
• Avoid abbreviations, which end in vowels, you can reduce a letter or replace it with
another function consonant (examples: LOCA that represents local modify it to LOC,
ATUA that represents atualiza [to up date] modify it to ATLZ).
• Avoid using prefixes (example: the desenergizado [de-energized]function has the
"des" prefix, which shall not be used, the mnemonic shall be ENER).
- 1
- 2
前往页