Measured Variables Without A Time Stamp With The Function Codes 0X03 And 0X04 - Siemens SENTRON PAC4200 Manual

Appendix
A.2 Modbus
A.2.1 Measured variables without a time stamp with the function codes 0x03 and
0x04
Addressing the measured variables without a time stamp
The SENTRON PAC4200 Power Monitoring Device provides measured variables with or
without a time stamp.
Note
Error in the case of inconsistent access to measured values
Please ensure the start offset of the register is correct when making read accesses.
Please ensure the start offset and the number of registers are correct when making write
accesses.
If a value consists of two registers, a read command applied in the second register, for
example, will generate an error code. The SENTRON PAC4200 will also output an error
code if, for example, a write operation ends in the middle of a multi-register value.
Table A- 1 Measured variables available without a time stamp
Offset Number of Name
registers
1 2 Voltage L1-N
3 2 Voltage L2-N
5 2 Voltage L3-N
7 2 Voltage L1-L2
9 2 Voltage L2-L3
11 2 Voltage L3-L1
13 2 Current L1
15 2 Current L2
17 2 Current L3
19 2 Apparent power L1
21 2 Apparent power L2
23 2 Apparent power L3
25 2 Active power L1
27 2 Active power L2
29 2 Active power L3
31 2 Reactive Power L1 (Qn)
33 2 Reactive power L2 (Qn)
35 2 Reactive power L3 (Qn)
37 2 Power factor L1
39 2 Power factor L2
41 2 Power factor L3
146
Format Unit
Float V
Float V
Float V
Float V
Float V
Float V
Float A
Float A
Float A
Float VA
Float VA
Float VA
Float W
Float W
Float W
Float VAR
Float VAR
Float VAR
Float -
Float -
Float -
System Manual, 05/2019, A5E02316180B-05
Value range Access
- R
- R
- R
- R
- R
- R
- R
- R
- R
- R
- R
- R
- R
- R
- R
- R
- R
- R
0 ... 1 R
0 ... 1 R
0 ... 1 R
PAC4200