User-Defined Modbus Function Code 0X64 - Siemens SENTRON PAC2200CLP Product Manual

File Offset Ad-
(FC0x1 address dress
4) FC0x03
FC0x04
91 147 32547
91 149 32549
91 151 32551
A.1.14

User-defined Modbus function code 0x64

Function code 0x64 was defined in order to make it possible to read historical data, such as
the load profile or events stored in a logbook, out of a PAC device via Modbus.
Structure of request frame
MBAP Header
The "data log identifier" is defined system-wide for all PAC devices. The data memory which is
to be read out of the PAC device can be selected using this identifier. The "data identifier" and
the "advanced data identifier" determine which data from the selected data memory are sent
in the response data records.
Definition "Data Log Identifier"
Load profile memory
Daily profile memory
Monthly profile memory
Annual profile memory
Logbook (event memory)
Definition "Data Identifier"
The "data identifier" determines which collection of measured values (or events) are sent in
the data records of the response frame.
Measuring channel 1: Active energy or active power import
Measuring channel 2: Active energy or active power export
All events
Measuring channels 1 und 2 (average values
and cumulated values)
Measuring channel 1 (average values and
cumulated values)
PAC2200CLP
Equipment Manual, 06/2021, L1V30820585B-02
Leng Name
th
2 TS of month – 24
2 Work portion Tariff 1
2 Work portion Tariff 2
7 bytes 1 byte
Function code
0x64
Description
Description
1 byte
Data Log Identifier Data Identifier
Number
0x00
0x60
0x61
Appendix
A.1 Modbus TCP
Format
UNIX_TS (UTC)
Float
Float
1 byte 5 bytes
Advanced Data
Identifiers
Number
0x00
0x04
0x05
0x06
0x01
Can be used on "
Data Log Identifier"
0x01
0x00
0x00
Ac-
cess
R
R
R
119