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TR30-G USERS MANUAL EM-8631-G Rev.16
2.4 Explanation about the basic working and terms
Term
Explanation
Channel
CH
4 types of input channels and 1 type of output channel are defined in a device. The I/O
signals are in the form of fully encoded digital data.
AI
DI
PI
OI
DO
: Analog input (16 bit signed integer, unsigned integer)
: Digital input (1 bit)
: Pulse input (32 bit unsigned integer, signed integer, floating point)
: Function input (32 bit floating point)
: Discrete output (1 bit)
The available number of channels is decided for each storing rate.
Pen
To record a waveform, the channel needs to be assigned to a pen.
The available number of pens is decided for each storing rate.
Alarm zone transition
The total zone in which input values can be obtained as AI, PI or OI can be divided into
a maximum of 5 zones. The change in the zone caused by a change in the input value
is known as alarm zone transition.
In case of DI, this can only be ON/OFF, and hence a change in the input signal is
equivalent to an alarm zone transition.
Trend data
Indicates the waveform data assigned to the pen and recorded.
Event data
Indicates the information that [There has been an alarm zone transition], and this infor-
mation can also be recorded along with the trend data.
When recording only event data, the channel need not be assigned to a pen.
Comment data
This is a memo (text string) that the user can record at any desired position of the trend
data.
Internal memory
When the TR30 records data, it records trend data, event data and comment data in the
internal nonvolatile memory of the unit. This memory is known as internal memory.
Memory block
The TR30 divides internal memory into 50 segments and manages it. Each such di-
vided segment of memory is known as a memory block.
1 memory block is equivalent to about 1 book of recorded chart paper.
In a single memory block, trend data (120 pens × 50000 points), event data (3000
events) and comment data (1000 comments) can be recorded.
Data files are transferred to the SD card per memory block.
Start new memory block
Indicates that the memory block is changing during recording.
Event summary
Extracted from the event data recorded in the memory block.
Comment summary
Extracted from the comment data recorded in the memory block.