R5104V MODBUS Register Map v1.44
248083293-1 Rev 7
A-9
Setting the Alarm Threshold Value
Note:
Thresholds are
independent of each so the
value set for one channel
does not affect another.
The Alarm Threshold Value is set in the low register of the channels.
Each channel has independent threshold value registers. Setting a
value for channel 1 as 100 will not affect channel 2 setting of, say, 500.
Data
Registers
Data is stored in the input registers (30xxx series), which are read-only.
All data items are four bytes long and are stored across two registers.
Byte and word order is big-endian. Thus, data items are formed by
placing the high bytes in front of the low bytes.
Example:
<High Bytes><Low bytes> = <4 Byte Data Item>
Not all particle channels are active. Retrieving data from an inactive
channel returns garbage. See the Data Enable Registers section of this
document for details on how to record data from active channels.
This entire series of registers represents one data record in the device.
The Record Index Register (40025) must be changed to index other
records here.
The first record in the data buffer is located at Index=0. The most
recently saved value is at Index=-1.
Table A-10 Alarm Threshold Registers set to 1000
Registers
Particle
Channel
Threshold
Value
45009 - 45010
1
1000
45011 - 45012
2
1000
45013 - 45014
3
1000
45015 - 45016
4
1000
Table A-11 Data Registers
Register
Data Type
Description
30001
signed integer
Timestamp [high] (# of seconds since
midnight, 1/1/1970)
30002
signed integer
Timestamp [low]
30003
unsigned integer
Sample Time [high] (In seconds)
Summary of Contents for REMOTE 5104V
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