TDE MACNO OPD EXP - Page 87

87
User’s manual
3
rd
word : it defines the max value admitted in the internal representation of the parameter
4
th
word : it defines the representation base of the parameter
example 1: (hexadecimal if leaded by ‘0x…’):
1
st
word = 0x1131
2
nd
word = 0000 free parameter in percent of the base: the real value is = (internal
3
rd
word = 8190 representation divided by the base)*100
4
th
word = 4095
if the current value is 1000Æ (1000/4095)*100 = 24,4%
the variation range is included between 0 and 200%
example 2 : (hexadecimal if leaded by ‘0x…’):
1
st
word = 0x2231
2
nd
word = 5 reserved parameter proportional to the base : the real value is
3
rd
word = 1000 internal representation divided by the base
4
th
word = 10
if the current value is 400Æ (400/10) = 40,0%
the variation range is included between 0,5 and 100%
4.2.6.2 FORMAT CONNECTIONS TABLE ( TAB_WITH_FORMATS
2002H)
This table is composed by 400 words (100x4), 4words for each connection:
1
st
word : it defines the type of connection ,its internal representation and the number of integer and
decimal digits that will show up on the display. Each nibble has the following meaning:
0x 0 0 0 0 (hexadecimal)
Number of digits visualised in decimal
Number of digits visualised in integer
Internal representation :
0 Direct value
1 Percent of the base (100/base)
2 Proportional to the base (1/base)
Parameter type:
0 Not managed
1 free (changeable on-line)
2 Reserved (change off-line + key P60)
4 TDE (change off-line + key P99)
2
nd
word : it defines the min admitted value in the internal representation of the connection
3
rd
word : it defines the max admitted value in the internal representation of the connection
4
th
word : it defines the base of the representation of the connection (always 1)
The internal representation is always the direct value.
Example (hexadecimal if leaded by ‘0x…’) :
1
st
word = 0x2020
2
nd
word = 0 reserved connection : its value is included between 0 and 18
3
rd
word = 18
4
th
word = 1