Siemens SIMATIC ET 200pro - Data formats and data records; D.1 Data formats

SIMATIC – ET 200pro motor starter
GWA 4NEB 950 5661-02 DS 04
D-1
Data formats and data records D
D.1 Data formats
Features
The motor starter determines a large amount of operation, diagnosis and statis-
tical data. Control data is transferred to the motor starter.
Control data
Data that is transferred to the motor starter, e.g. switching command
Motor COUNTER-CLOCKWISE, trip reset etc.
Data format: Bit
Signals
Data that is transferred to the motor starter and indicates the current operating
mode, e.g. Motor COUNTER-CLOCKWISE, etc.
Data format: Bit
Diagnostics
Data that is transferred to the motor starter and indicates the current operating
state, e.g. disruption overload, etc.
Data format: Bit
Current values
Current values are coded in various current formats
In the 6-bit, in the 8-bit and in the 9-bit current format:
Figure D-1: Current formats
Current values are
• Motor current I
max
(6-bit current format)
• Phase currents I
L1
max, I
L2
max, I
L3
max (8-bit current format)
• Last tripping current (9-bit current format)
• Maximum tripping current (9-bit current format)
01245678 3
2
0
2
-1
2
-2
2
-3
2
-4
2
-5
2
3
2
2
2
1
1 + 0.5 + 0.25 + 0.125 + 0.0625 + 0.03125 = 1.96875 (q 0 to 197%)
8 + 4 + 2 1 + 0.5 + 0.25 + 0.125 + 0.0625 + 0.03125 = 15.97 (q 0 to 1597%)
Bit
6-bit current format
9-bit current format
4 + 2 1 + 0.5 + 0.25 + 0.125 + 0.0625 + 0.03125 = 7.97 (q 0 to 797%)
8-bit current format