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Octet
Bit 8
Bit 7
-0
1
SN
2
-7
-8
2
2
2
-15
-16
3
2
2
-23
-24
4
2
2
Bit sequence: V2
In this bit string, 16 variables of type BOOLEAN are represented in two
octets.
Code: 115
= 73
dec
hex
Octet
Bit 8
Bit 7
1
15
14
2
7
6
Time constant: D2
Values of time data type D2 always refer to a specific, constant scan time T
This time Ta is the shortest scan time (defined in PNU 962) and is required
here in order to evaluate D2.
The value for D2 can be calculated as follows:
D2 = i x T
/16384
a
Data type
Code
(dec)
D2 Time constant
120
Time constant: T2
Values of time data type T2 are always relative to a specific constant scan
time T
. T
is the shortest scan time (defined in PNU 962). It is required here
a
a
to calculate T2.
The following formula applies: T2 = i x T
Data type
Code
(dec)
T2 Time constant
118
(16 Bit)
T2 Time constant
119
(32 Bit)
￫
For more detailed information on the data types, refer to the
following as well: IEC 61158-5: 2003
DS7 Soft starter 09/16 MN03901001Z-EN www.eaton.com
Bit 6
Bit 5
Bit 4
-1
-2
-3
2
2
2
-9
-10
-11
2
2
2
-17
-18
-19
2
2
2
-25
-26
-27
2
2
2
Bit 6
Bit 5
Bit 4
13
12
11
5
4
3
Code
Byte
Value range
(hex)
78
1
0 ≦ i ≦ (2 - 2
a
Code
Byte
Value range
(hex)
76
1
0 ≦ i ≦ 32767 x T
77
2
0 ≦ i ≦ 4294967295 x T
8 SmartWire-DT
8.9 Programming
Bit3
Bit 2
Bit1
-4
-5
-6
2
2
2
-12
-13
-14
2
2
2
-20
-21
-22
2
2
2
-28
-29
-30
2
2
2
Bit3
Bit 2
Bit1
10
9
8
2
1
0
Resolution
-14
-14
) x T
2
x T
a
a
Resolution
T
a
a
T
a
a
.
a
203
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