Siemens SENTRON PAC2200CLP Product Manual page 124

Appendix
A.1 Modbus TCP
Different data record types exist for event entries:
1
2
3
4
5
6
7
Examples
A number of Modbus frames are provided here to indicate the readout of various data logs in
the device using the function code 0x64.
Example of request frame
7 bytes
MBAP Header Function code 0x64
0x0000 0x0000 0x64
0x0009 0x01
Example of response frame
Bytes in hex
00 00 00 00 00 64 01
64
61
04
6D
00 00 2C E2
02
2D
5E 84 CF 98
00 00 0E 10
00 00 2C E2
41 90 D1 A4
00 00 00 00
41 41 B4 EB 44 67 2E 00
00 00 00 00 00 00 00 00
00 00 07 7E
00 01 00 40
122
Event type
Change to current transformer setting
Time set
Time set several times within one period
Reserved
Change of time zone setting
Reserved
Reserved
1 byte
Data log identifier
(Tagesprofilspeicher)
0x04
Description
MBAP Header
Modbus user defined function code
payload length in bytes (starting with the following byte to the end, excluding CRC)
Data log identifier -> day profile memory
Data identifier -> channels 1 + 2 (active energy) and Readings of energy counters T1+T2
Set the read pointer to OID 0x00002CE2 to the of the day profile memory
Number of records inserted in this telegram (may be smaller than requested)
Length of first record in bytes (including this byte)
0x2D data bytes of 1st record with OID 0x00002CE2
timestamp act.period
Timezone offset in s
OID act. Period (unique period entry identification
index)
Active energy Import act. Period in Wh
Active energy Export act. Period in Wh
Active energy counter reading Import T1+T2 act.
Period in Wh
Active energy counter reading Export T1+T2 act.
Period in Wh
Real load profile period length act. Period in ms
Information flag bytes act. period
Description
1 byte
Data identifier (all
channels energy)
0x6D
Equipment Manual, 06/2021, L1V30820585B-02
1 byte 5 bytes
Advanced data identi-
fiers (4 byte OID and 1
byte number of rec-
ords.)
0x00002CE2 0x02
unix time UTC 4 byte
signed long 4 byte
unsigned long 4 byte
float 4 byte
float 4 byte
double 8 byte
double 8 byte
unsigned long 4 byte
Bitfield 4 byte
PAC2200CLP