Siemens SICAM Q100 - Data in the Modbus Registers (Data Mapping)

Communication
2.2 Modbus
28 SICAM Q100, 7KG95xx, System Manual
E50417-C1040-C522-A8, Edition 09.2020
Quality Information
The two following quality bits are stored for each counter in separate holding registers:
• Overflow OV: The internal counter pulse exceeds 31 bits. The Overflow bit is reset once the counter has
been reset.
• Invalid IV: The counter value is invalid due to a reset/device start. The bit is deleted 1 min after the device
start.
Energy per Counter Pulse
The energy per counter pulse is identical for all energy metered values calculated from the measured AC quan-
tities so that only one value is transmitted for all energy counters. The energy per counter pulse is determined
by the AC network configuration.
At the rated value 60 000 counter pulses per hour are recorded for V
rated
and I
rated
.
A counter overflow occurs about 4 years after the counters were reset when V
rated
and I
rated
are measured
continuously.
2.2.7 Data in the Modbus Registers (Data Mapping)
The indications, measured values etc. are stored in Holding registers. The following register groups exist. They
are described in the following sections:
• Register 0001 to 0048: Device identification (read only)
• Register 0065 to 0068: Date and time (read and write)
• Register 0071 to 0088: Version information (read only)
• Register 0101/0102: Device status (read only)
• Register 0111/0112: Indications concerning limit violations (read only)
• Register 0113: Group indications (read only)
• Register 0114: PQ events (read only)
• Register 0131: Status of the binary outputs (read only)
• Register 0132: Status of the binary inputs (read only)
• Register 0135 and 0137: Status of binary inputs of SICAM IO subdevice (read only)
• Register 0136 and 0138: Status of binary outputs of SICAM IO subdevice (read only)
• Register 0141 to 0150: Messages of the communication (read and write)
• Register 0151: Load profiles (write only)
• Register 0152: Load profiles (read only)
• Register 0153: Synchronization of load profile measuring period (read and write)
• Register 0154: Tariffs (read and write)
OV
Holding register 08xx
IV
Counter 8
OV IV
Counter 7
OV IV
Counter 1
OV IV
Counter 2
OV IV
Counter 3
OV IV
Counter 4
OV IV
Counter 5
OV IV
Counter 6
SYS_SICAM_Q100_US.book Page 28 Thursday, September 24, 2020 1:17 PM