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4
DATALOGGER
NI2400
BASE_VIRT+1268 -
MSB-LSB Temperature Script5 Ch16
BASE_VIRT+1269
BASE_VIRT+1270 -
Timestamp acquisition Script5 Ch16
BASE_VIRT+1278
BASE_VIRT+1279 Flags Script5 Ch16
SENSORS BASE ADDRESS
Following formulas will show how to get every connected sensor's base address.
Local Sensors (Analog)
BASE_ANALOG = 0
Channel_ADDRESS = (Channel-1)*16 + BASE_ANALOG
8CH Channel = [1;8]
24CH Channel = [1;24]
Digital Sensors (Smart Modbus)
8CH 24CH
BASE_DIG 128 384
Channel_ADDRESS = (Channel-1)*16 + BASE_DIG
Channel = [1;254]
Multiplexer Sensors
8 CH 24 CH
BASE_MUX 4224 4480
Channel_ADDRESS = ((Address-1)*32*16)+((Channel-1)*16)+BASE_MUX
Address = [1;16], Channel = [1;24]
Digital Inputs
8 CH 24 CH
BASE_DIN 12416 12672
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Channel_ADDRESS = ((Channel-1)*16) + BASE_DIN
Script5 - Ch16 Channel = [1;2]
Script5 - Ch16
Virtual Channels
Script5 - Ch16
BASE_VIRT
Channel_ADDRESS = ((Script-1)*16*16)+((Channel-1)*16)+BASE_VIRT
Script = [1;5], Channel = [1;16]
Event Log Registers
This register set handles Event Log status.
For every log, timestamp, and code is exposed.
This register set starts at Modbus address 0x3800 (14336 DEC).
STATUS REGISTERS
This register exposes information about the datalogger. Base Address for this register is
098
DATALOGGER
NI2400
8 CH 24 CH
12448 12704
REGISTER DESCRIPTION
14336 - 14344 Timestamp Event n
14346 Event Code n
14347-14410 Event String n
14411 – 14419 Timestamp Event n-1
14421 Event Code n -1
14422-14485 Event String n -1
... ...
... ...
... ...
15816 – 15824 Timestamp Event n -19
15826 Event Code n -19
15827-15890 Event String n -19
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Event n
Event n
Event n
Event n-1
Event n-1
Event n-1
...
...
...
Event n-19
Event n-19
Event n-19
099