Siemens SENTRON PAC3200T, Руководство по эксплуатации продукта, Страница: 103 / 136

Appendix
A.1 Modbus TCP
Equipment Manual, 09/2022, L1V30415168B-03
101
A.1.4 Modbus measured variables with function code 0x14
Addressing the measured variables
The measured variables listed below can be read out via Modbus function code 0x14 "Read
File Record" in two steps.
These are the average values calculated by the device. The device can calculate the average
values in two steps:
•
Stage 1 (File Number 1), preset to 10 s
• Stage 2 (File Number 2), preset to 15 min
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 .
Example: If a value consists of two registers, a read command applied in the second register
will generate an error code. The PAC3200T will also output an error code if a write operation
ends in the middle of a multi-register value.
Abbreviations in the "Access" column Abbreviation
R Read access
W Write access
RW Read and write access
File
(FC0x14)
Offset
address
Address
FC: 0x03 0x04
Number of
registers
Name Format Access
1 1 30001 2 Time stamp Aggregation Stage n UNIX_TS R
1 3 30003 2 Flags Aggregation Stage n Uint32 R
1 5 30005 2 V_L1 Float R
1 7 30007 2 V_L2 Float R
1 9 30009 2 V_L3 Float R
1 11 30011 2 V_L12 Float R
1 13 30013 2 V_L23 Float R
1 15 30015 2 V_L31 Float R
1 17 30017 2 I_L1 Float R
1 19 30019 2 I_L2 Float R