Obvius A90DC-12 Installation And Operation Manual page 12

1013 41014
1014 41015
1015 41016
1016 41017
1017 41018
1018 41019
1019 41020
1020 41021
1021 41022
1022 41023
1023 41024
1024 41025
1025 41026
1026 41027
Analog input: Current Mode:
instantaneous: The instantaneous reading will report the present status of the input, represented in ohms, mA, or volts. The
value uses a short term average of the last 16 a/d converter readings to compute the value of this register. In voltage and
current mode, the instantaneous value is calculated several times per second. In resistance mode, the value is calculated at
least every two seconds. 0xFFFFFFFF will report an off-scale-high condition, or any other invalid data.
average: This register reports the longer term average of the input. Each time a short term average is calculated with all-new
samples, the value is added to the cumulative average. This value should be reset using the clear min/max register at least
once per hour. If not cleared, it will eventually start a moving average after memory storage is exceeded. The AcquiSuite
will clear this register a the start of each data logging period.
min: the minimum value seen in the instantaneous register.
max: the maximum value seen in the instantaneous register.
Multipliers: The register value for inst, average, min, and max must be divided by 1000 to convert the number to mA.
Current mode reports 0 to 20.000mA.
clear min/max (register 41017): This register clears the values for average, min, and max. The historical accumulation of
samples for the average field will be cleared, and average, min, max will be set to the present instantaneous value after the
next instantaneous value is recalculated.
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eg 1234 = 12.34A (x100, 0 to 50 amps)
UINT16 rw/nv deviation threshold for alarm feature, percent * 100.
eg 1234 = 12.34% (0 to 100%)
UINT16 rw/nv deviation minimum time for alarm feature, in seconds.
(0 to 3600 seconds)
UINT16 rw/nv Channel disable: Bitmap of channels to disable
(0x00 = all 12 enabled, 12 bit: 0x00 to 0xFFF)
UINT16 w Ave-clear: write any value to clear long average.
(read returns zero)
INT16 ro reserved
INT16 ro reserved
UINT16 ro reason for reboot.
0x8000=WDTOF
INT16 ro Powersupply,
INT16 ro reserved
UINT16 ro number of available current channels on system.
A90DC-12 = 12.
Use for register 41016 to find maximum bits allowed.
UINT16 ro number of available analog input channels on the system
(A90DC-12 = 1)
UINT32 ro MSW bitmap of available analog input modes.
-- LSW
0x0002 = Analog 4-20mA mode (only one mode supported)
UINT16 rw/nv Data polarity of current readings: Normal = 1, Inverted = 0.
It effects all instantaneous and long averages, Reg. #40001-
40006, and #40011-40034.
www.
0x01=POR, 0x02=EXTR 0x04=WDTR 0x08=BODR,
+5v rail. (x100, eg 567
information@itm.com
.com
= 5.67v)
A90DC-12 – DC Current Monitor