Spectris PARTICLE MEASURING SYSTEMS MiniCapt, Руководство по эксплуатации

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Input Registers Appendix A : Communications
MiniCapt® Mobile Operations Manual
A-5
Data Section
The Data section contains:
• Calibration Date
• Serial Number
• Device Status
• Device State
• Number of data samples in queue
• Sample Data information
The Data section starts with what would have normally been considered configuration
information - calibration date and serial number. This was added to allow for a single
contiguous read when this particular information was desired along with the regular
sample data. If not desired, then start reading at register 30212.
30201:

Calibration Date (Month)
A value between 1 and 12.
30202:

Calibration Date (Day)
A value between 1 and 31.
30203:

Calibration Date (Year)
A value representing the year (e.g., 2012).
30204 – 30211:

Serial Number
Serial number entered using ASCII bytes and positioned as shown in the map.
30212 – 30213:

Device Status
Dual-register representation of device status. Integer bit mask matching the
current coil selections for convenience. The host can use this to check for
data availability, data format, etc while reading the data. A separate coil read
would not be required. Values are defined in
Table A-2 on page -6.
30214:

Device State
Least Significant byte (LSB) is State. Most Significant Byte (MSB) is sub-state.
Values are defined in
Table A-2 on page -6.
30215:

Number of data samples in
the queue
A value of zero is identical to no data available (same meaning as coil 00/02
read as zero).
The queue size setting will determine if the data register section
shows real-time data or stored data. If the queue size setting has
been set to one, the sample data will always represent the last
real-time data packet and the queue value will be set to one if
there is a data packet available. If the queue size setting is set
greater than one, the sample data will represent the last data
queued and the queue value will be set to one if there is any
queued data available.
The two types of data presentation are supported by the same
Modbus register map and are delineated by how the host system
processes the register/coil fields and the instrument queue
setting. The data register section can be forced to show real-time
data by setting the queue size to one or to show queued data by
setting the queue size greater than one. Queued data is always
presented oldest first. The queue size command is “set queue #”
where # is a value between 1 and 3000.