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Quality Information
The 2 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.
OV
IV
Counter 8
Energy per Counter Pulse
The energy per counter pulse is identical for all energy metered values calculated from the measured alternat-
ing-current quantities so that only one value is transmitted for all energy counters. The energy per counter pulse
is determined by the alternating-current network configuration.
At the rated value 60 000 counter pulses per hour are recorded for V
about four years after the counters were reset when V
9.2.7
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 0049:
•
Register 0065 to 0068:
•
Register 0071 to 0089:
•
Register 0101 to 0102:
•
Register 0111 to 0112:
•
Register 0113:
•
Register 0131:
•
Register 0135:
•
Register 0136:
•
Register 0141:
•
Register 0142:
•
Register 0201 to 0280:
•
Register 0801 to 0846:
SICAM MMU 7KG9663, Device Manual
E50417-H1040-C514-A3, Edition 01.2016
OV
IV
OV
IV
OV
Counter 7
Counter 6
Holding register 08xx
Device identification (read only)
Date and time (read and write)
Version information (read only)
Device status (read only)
Indications concerning limit violations (read only)
Group indication (read only)
Status of the binary outputs (read only)
Status of the binary inputs of I/O Unit – Subdevice (read only)
Status of the binary outputs of I/O Unit – Subdevice (read only)
Indications of the communication -1- (read and write)
Indications of the communication -2- (read and write)
Measured values (read only)
Energy counters (read only)
IV
OV
IV
OV
Counter 5
Counter 4
Counter 3
rated
and I
are measured continuously.
rated
rated
9 Communication
IV
OV
IV
OV
Counter 2
Counter 1
and I
. A counter overflow occurs
rated
9.2 Modbus
IV
159
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