Device Monitor Objects; Historical Records; Table 3 Device Monitor Objects - Curtis Acuity 1030 Manual

8
INDEX SUB-INDEX ACCESS
5200h
5201h
5202h
5203h
5204h
5205h
5209h
520Ah
520Bh
5214h
INDEX SUB-INDEX ACCESS BYTE 5
5300h
5301h
5302h
Curtis 1030 Acuity Manual,

DEVICE MONITOR OBJECTS

The Device Monitor Objects are found in the 5200h CAN Object address
range, as shown in Table 3.
The Acuity monitors and records various battery parameters. To retrieve
battery data from the Acuity, you can use either PDOs or the objects in Table 3.

Table 3 Device Monitor Objects

BYTE 5
00h RO
00h RO
00h RO
00h RO
00h RO
00h RO
00...9h RO
00h RO
RmAh_lsb RmAh_msb RAh_LSB RAh_MSB
00h RO
RmAh_lsb RmAh_msb RAh_LSB RAh_MSB
00h RO
EBC_LSB EBC_MSB
There are ten ranges of discharge rates. Each sub-index
Binned Ah (5209h)
(00–09h) holds the number of Ah discharged at that rate.

Historical records

A historical record is generated when one of these four events occurs:
• A given number of Ampere-hours have been drawn from the battery
• A battery cycle has completed
• The battery charger has been removed
• The unit has been disconnected from the battery.
In a typical application, the Acuity will generate 15 to 20 historical records per
day. The historical records are stored in the Acuity's non-volatile memory and
can be read through the CAN interface.
The following three objects are used to read historical record data.
00..15h RO LSB
00h RO LSB
00h RO LSB
Rev. C
BYTE 6 BYTE 7 BYTE 8
BYTE 6 BYTE 7 BYTE 8
MSB 0 0 HIstorical record request.
Bytes 6+5 = record number.
Sub-index = index to 4 bytes within record.
MSB 0 0 Number of records saved; 16-bit number.
MSB 0 0 Bytes 6–5 battery cycle number. Returns
historical record index.
8 — DEVICE MONITOR OBJECTS
DESCRIPTION
Voltage.
Current.
Temperature.
SoC.
Historical Ah Discharge.
Historical Ah Charge.
Binned Ah.
Resettable Ah counter, Discharge.
Resettable Ah counter, Charge.
Estimated battery capacity.
DESCRIPTION
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