Siemens simatic et200sp - Page 121

Measured variables
Analog input module AI Energy Meter 480VAC ST (6ES7134-6PA20-0BD0)
Manual, 12/2015, A5E36061895-AA
121
Meas-
ured
value ID
Measured variables
Data
type
Unit
Value range
Connection type
1P2W
3x1P2W
2P3W
3P4W
3P4W1
66035 Total active power
L1L2L3
5
INT 1 W -27648 ... 27648 ✓ ✓ ✓ ✓ ✓
66036 Total reactive power
L1L2L3
5
INT 1 var -27648 ... 27648 ✓ ✓ ✓ ✓ ✓
66037 Total power factor
L1L2L3
6
USINT 0.01 0 ... 100 ✓ ✓ ✓ ✓ ✓
66038
Frequency
4
UINT
0.01 Hz
4500 ... 6500
✓
✓
✓
✓
✓
1
Effective value
2
IEC 61557-12
3
Arithmetical mean value over 200 ms as floating mean
4
Arithmetical mean value over 10 s as floating mean
5
Simple summation
6
Calculation from the start/restart (inflow and outflow values are positive numbers)
7
Determined from ratio of active and apparent power
8
For mapping both states as UINT (high: Energy counter overflow, low limit)
9
Corresponds to the maximum of the phase-specific operating hours counters
Format
Table B- 2 Format and its length in bytes
Format in STEP 7 (TIA Portal)
Format to IEEE
Length in bytes
Comment
BYTE
BYTE
1 byte
Bit field with 8 bit
WORD
WORD
2 bytes
Bit field with 16 bit
USINT
INT8 (unsigned)
1 byte
Fixed-point number 8 bits without sign
INT
INT16 (signed)
2 bytes
Fixed-point number 16 bits with sign
UINT
INT16 (unsigned)
2 bytes
Fixed-point number 16 bits without sign
UDINT
INT32 (unsigned)
4 bytes
Fixed-point number 32 bits without sign
REAL
Float32
4 bytes
Floating-point number 32 bits with sign
LREAL
Float64
8 bytes
Floating-point number 64 bits with sign