# Read/Write Memory – Read List

{% hint style="info" %}
When reading large values with different data formats (e.g., **Float32** or **Int64**), tiny differences may occur due to internal calculations, typically **less than 1/10,000**, which is normal.

**Read commands** must not exceed **20 registers**; longer requests will be **ignored**. See the register list for details.
{% endhint %}

### How to Use the Read/Write Memory List

<table data-header-hidden><thead><tr><th width="186">Field Name</th><th>Function</th></tr></thead><tbody><tr><td>Field Name</td><td>Function</td></tr><tr><td>Register Address</td><td>Addresses for read/write memory, not shared with read-only memory.</td></tr><tr><td>Register Length</td><td>Length of the register variable.</td></tr><tr><td>Memory Content Name</td><td>Describes the name or purpose of the memory content.</td></tr><tr><td>Data Type</td><td>Specifies the format of transmitted or received data.</td></tr><tr><td>Read Command</td><td>Indicates the available read commands.</td></tr><tr><td>Write Command</td><td>Indicates the available write commands. A value of X in this column means remote writing is not supported for that register.</td></tr><tr><td>Category Option List Link</td><td>Links to detailed items in each category.</td></tr></tbody></table>

## Memory List

<table data-header-hidden><thead><tr><th width="269">Field Name</th><th align="center">Function</th></tr></thead><tbody><tr><td>Field Name</td><td align="center">Function</td></tr><tr><td>Reg Location</td><td align="center">Specifies the location of the read-write memory, distinct from the read-only memory space.</td></tr><tr><td>Reg Length</td><td align="center">Defines the data length of the register variable.</td></tr><tr><td>Memory Content Name</td><td align="center">Provides a description of the memory content.</td></tr><tr><td>Data Format</td><td align="center">Specifies the format used for data transmission and reception.</td></tr><tr><td>Read Command</td><td align="center">Indicates availability for read commands.</td></tr><tr><td>Write Command</td><td align="center">Indicates availability for write commands. Certain register positions marked with "X" do not support remote writing.</td></tr><tr><td>Classification Option List Link</td><td align="center">Links to detailed items under each category menu.</td></tr></tbody></table>

## Read-Write Memory List

<table><thead><tr><th>Register Address</th><th>Reg Length</th><th align="center">Memory Content Name</th><th>Data Type</th><th>Read Command</th><th>Write Command</th><th>Classification Option List Link</th><th data-hidden></th></tr></thead><tbody><tr><td><a href="../../../parameters/a-measurement-setup"><strong>A parameter Category</strong></a></td><td></td><td align="center"></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>00 00</td><td>1</td><td align="center">A02 Preset Pipe Spec</td><td>int16</td><td>03</td><td>Ｘ</td><td><a href="../../../../parameters/a-measurement-setup#a02-preset-pipe-spec-pipe-specification">Please refer to the category menu</a></td><td></td></tr><tr><td>00 01</td><td>1</td><td align="center">A03 Pipe Geo Unit</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/a-measurement-setup#a03-pipe-geo.-unit-pipe-dimension-unit">Please refer to the category menu</a></td><td></td></tr><tr><td>00 02</td><td>2</td><td align="center">A04 Pipe Outer Diameter</td><td>float32</td><td>03</td><td>Ｘ</td><td><a href="../../../../parameters/a-measurement-setup#a04-pipe-od-outer-diameter-pipe-outer-diameter">Please refer to the category menu</a></td><td></td></tr><tr><td>00 04</td><td>2</td><td align="center">A05 Pipe Perimeter</td><td>float32</td><td>03</td><td>Ｘ</td><td><a href="../../../../parameters/a-measurement-setup#a05-pipe-perimeter-pipe-circumference">Please refer to the category menu</a></td><td></td></tr><tr><td>00 06</td><td>2</td><td align="center">A06 Pipe Thickness</td><td>float32</td><td>03</td><td>Ｘ</td><td><a href="../../../../parameters/a-measurement-setup#a06-pipe-thickness-pipe-wall-thickness">Please refer to the category menu</a></td><td></td></tr><tr><td>00 08</td><td>2</td><td align="center">A07 Pipe Inner Diameter</td><td>float32</td><td>03</td><td>Ｘ</td><td><a href="../../../../parameters/a-measurement-setup#a07-pipe-id-inner-diameter-pipe-inner-diameter">Please refer to the category menu</a></td><td></td></tr><tr><td>00 0A</td><td>1</td><td align="center">A08 Pipe Material</td><td>int16</td><td>03</td><td>Ｘ</td><td><a href="../../../../parameters/a-measurement-setup#a08-pipe-material-pipe-material">Please refer to the category menu</a></td><td></td></tr><tr><td>00 0B</td><td>2</td><td align="center">A09 Pipe Soundspeed</td><td>float32</td><td>03</td><td>Ｘ</td><td><a href="../../../../parameters/a-measurement-setup#a09-pipe-sound-speed-pipe-sound-velocity">Please refer to the category menu</a></td><td></td></tr><tr><td>00 0D</td><td>1</td><td align="center">A10 Liquid Type</td><td>int16</td><td>03</td><td>Ｘ</td><td><a href="../../../../parameters/a-measurement-setup#a10-liquid-type-fluid-type">Please refer to the category menu</a></td><td></td></tr><tr><td>00 0E</td><td>2</td><td align="center">A12 Liquid Soundspeed</td><td>float32</td><td>03</td><td>Ｘ</td><td><a href="../../../../parameters/a-measurement-setup#a12-liquid-ss-sound-speed-fluid-sound-velocity">Please refer to the category menu</a></td><td></td></tr><tr><td>00 10</td><td>2</td><td align="center">A13 K Viscosity cst</td><td>float32</td><td>03</td><td>Ｘ</td><td><a href="../../../../parameters/a-measurement-setup#a13-k.-viscosity-cst-kinematic-viscosity-in-cst">Please refer to the category menu</a></td><td></td></tr><tr><td>00 12</td><td>1</td><td align="center">A15 Damping</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/a-measurement-setup#a15-damping-damping-coefficient">Please refer to the category menu</a></td><td></td></tr><tr><td>00 13</td><td>1</td><td align="center">A16 Direction</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/a-measurement-setup#a16-direction-flow-direction">Please refer to the category menu</a></td><td></td></tr><tr><td>00 14</td><td>1</td><td align="center">A17 Neg Flow</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/a-measurement-setup#a17-neg-flow-negative-flow-negative-flow-display">Please refer to the category menu</a></td><td></td></tr><tr><td>00 15</td><td>2</td><td align="center">A18 Low Flow Cutoff</td><td>float32</td><td>03</td><td>30</td><td><a href="../../../../parameters/a-measurement-setup#a18-low-flow-cutoff-force-zero">Please refer to the category menu</a></td><td></td></tr><tr><td>00 17</td><td>1</td><td align="center">A19 Fast Update</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/a-measurement-setup#a19-fast-update-high-speed-update">Please refer to the category menu</a></td><td></td></tr><tr><td>00 18</td><td>1</td><td align="center">A20 Anti Noise</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/a-measurement-setup#a20-anti-noise-noise-reduction">Please refer to the category menu</a></td><td></td></tr><tr><td>00 19</td><td>2</td><td align="center">A23 Zero Offset</td><td>float32</td><td>03</td><td>30</td><td><a href="../../../../parameters/a-measurement-setup#a23-zero-offset-setting">Please refer to the category menu</a></td><td></td></tr><tr><td>00 1B</td><td>1</td><td align="center">A24 Start up check</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/a-measurement-setup#a24-startup-pipe-check-initial-pipe-check-at-startup">Please refer to the category menu</a></td><td></td></tr><tr><td>00 1C</td><td>1</td><td align="center">A25 Off-pipe zero</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/a-measurement-setup#a25-off-pipe-zero-off-pipe-zero-function">Please refer to the category menu</a></td><td></td></tr><tr><td>00 1D</td><td>1</td><td align="center">A26 Beta Mode</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/a-measurement-setup#a26-beta-mode">Please refer to the category menu</a></td><td></td></tr><tr><td><a href="../../../../parameters#b-unit-parameter-list"><strong>B parameter Category</strong></a></td><td></td><td align="center"></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>01 00</td><td>1</td><td align="center">B01 Vol Unit</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/b-unit#b01-vol.-unit-volume-unit">Please refer to the category menu</a></td><td></td></tr><tr><td>01 01</td><td>1</td><td align="center">B02 Time Unit</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/b-unit#b02-time-unit">Please refer to the category menu</a></td><td></td></tr><tr><td>01 02</td><td>1</td><td align="center">B03 Total Unit</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/b-unit#b03-total-unit-total-volume-unit">Please refer to the category menu</a></td><td></td></tr><tr><td>01 03</td><td>1</td><td align="center">B04 VelocityUnit</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/b-unit#b04-velocity-unit">Please refer to the category menu</a></td><td></td></tr><tr><td>01 04</td><td>1</td><td align="center">B05 Dec Place</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/b-unit#b05-dec.-place-decimal-place">Please refer to the category menu</a></td><td></td></tr><tr><td>01 05</td><td>1</td><td align="center">B06 Pipe Geo Unit</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/b-unit#b06-pipe-geo.-unit-pipe-geometry-unit">Please refer to the category menu</a></td><td></td></tr><tr><td><a href="../../../../parameters#k-on-site-calibration-parameter-list"><strong>K parameter Category</strong></a></td><td></td><td align="center"></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>0A 00</td><td>1</td><td align="center">K02 Calibra Mode</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/k-calibration#k02-calibration-mode">Please refer to the category menu</a></td><td></td></tr><tr><td>0A 01</td><td>2</td><td align="center">K03 Scale Factor</td><td>float32</td><td>03</td><td>30</td><td><a href="../../../../parameters/k-calibration#k03-scale-factor">Please refer to the category menu</a></td><td></td></tr><tr><td>0A 03</td><td>2</td><td align="center">K04 Manual Offset</td><td>float32</td><td>03</td><td>30</td><td><a href="../../../../parameters/k-calibration#k04-manual-offset">Please refer to the category menu</a></td><td></td></tr><tr><td>0A 05</td><td>2</td><td align="center">K05 Totalizer Scale</td><td>float32</td><td>03</td><td>30</td><td><a href="../../../../parameters/k-calibration#k05-totalizer-scale-cumulative-total-ratio">Please refer to the category menu</a></td><td></td></tr><tr><td><strong>C parameter Category</strong></td><td></td><td align="center"></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>02 00</td><td>1</td><td align="center">C01 Total Method</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/c-total#c01-total-method">Please refer to the category menu</a></td><td></td></tr><tr><td>02 01</td><td>1</td><td align="center">C02 Del Total</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/c-total#c02-del.-total-delete-total">Please refer to the category menu</a></td><td></td></tr><tr><td>02 02</td><td>1</td><td align="center">C03 Dosing Mode</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/c-total#c03-dosing-mode">Please refer to the category menu</a></td><td></td></tr><tr><td>02 03</td><td>2</td><td align="center">C04 Dosing Target</td><td>float32</td><td>03</td><td>30</td><td><a href="../../../../parameters/c-total#c04-dosing-target">Please refer to the category menu</a></td><td></td></tr><tr><td>02 05</td><td>1</td><td align="center">C05 Dosing Reset Time</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/c-total#c05-dosing-timer">Please refer to the category menu</a></td><td></td></tr><tr><td>02 83</td><td>4</td><td align="center">C04 Dosing Target(64)</td><td>int64</td><td>03</td><td>31</td><td><a href="../../../../parameters/c-total#c04-dosing-target">Please refer to the category menu</a></td><td></td></tr><tr><td><a href="../../../../parameters#d-alarm-and-information-parameter-list"><strong>D parameter Category</strong></a></td><td></td><td align="center"></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>03 00</td><td>1</td><td align="center">D01 BoardComm Ala</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/d-alarm-and-info#d01-board-communication-alarm">Please refer to the category menu</a></td><td></td></tr><tr><td>03 01</td><td>1</td><td align="center">D02 Pipe Sensor Alarm</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/d-alarm-and-info#d02-pipe-sensor-alarm">Please refer to the category menu</a></td><td></td></tr><tr><td>03 02</td><td>1</td><td align="center">D03 Bad UltraS Signal</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/d-alarm-and-info#d03-bad-signal-alarm">Please refer to the category menu</a></td><td></td></tr><tr><td>03 03</td><td>1</td><td align="center">D04 Off Pipe Alarm</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/d-alarm-and-info#d04-off-pipe-alarm">Please refer to the category menu</a></td><td></td></tr><tr><td>03 04</td><td>1</td><td align="center">D05 FlowLIM Ala</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/d-alarm-and-info#d05-flowlim-ala.-flow-volume-limit-alarm">Please refer to the category menu</a></td><td></td></tr><tr><td>03 05</td><td>2</td><td align="center">D06 Up LIM</td><td>float32</td><td>03</td><td>30</td><td><a href="../../../../parameters/d-alarm-and-info#d06-up-lim-upper-limit">Please refer to the category menu</a></td><td></td></tr><tr><td>03 07</td><td>2</td><td align="center">D07 Low LIM</td><td>float32</td><td>03</td><td>30</td><td><a href="../../../../parameters/d-alarm-and-info#d07-low-lim-lower-limit">Please refer to the category menu</a></td><td></td></tr><tr><td>03 09</td><td>1</td><td align="center">D08 Hysteresis%</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/d-alarm-and-info#d08-hysteresis-hysteresis-percentage">Please refer to the category menu</a></td><td></td></tr><tr><td>03 0A</td><td>1</td><td align="center">D09 Total Ala</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/d-alarm-and-info#d09-total-ala.-total-alarm">Please refer to the category menu</a></td><td></td></tr><tr><td>03 0B</td><td>1</td><td align="center">D10 Total Trig</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/d-alarm-and-info#d10-total-trig.-total-alarm-trigger-condition">Please refer to the category menu</a></td><td></td></tr><tr><td>03 0C</td><td>2</td><td align="center">D11 Total Target</td><td>float32</td><td>03</td><td>30</td><td><a href="../../../../parameters/d-alarm-and-info#d11-total-target">Please refer to the category menu</a></td><td></td></tr><tr><td>03 0E</td><td>1</td><td align="center">D12 Iout Alarm</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/d-alarm-and-info#d12-iout-alarm">Please refer to the category menu</a></td><td></td></tr><tr><td>03 0F</td><td>1</td><td align="center">D13 Speed Alarm</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/d-alarm-and-info#d13-speed-alarm">Please refer to the category menu</a></td><td></td></tr><tr><td>03 10</td><td>1</td><td align="center">D14 PulseOverlap</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/d-alarm-and-info#d14-pulseoverlap-alarm">Please refer to the category menu</a></td><td></td></tr><tr><td>03 11</td><td>1</td><td align="center">D15 IoutStatAla</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/d-alarm-and-info#d15-ioutstatala-iout-status-alarm">Please refer to the category menu</a></td><td></td></tr><tr><td>03 12</td><td>1</td><td align="center">D16 Dosing Alarm</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/d-alarm-and-info#d16-dosing-alarm">Please refer to the category menu</a></td><td></td></tr><tr><td>03 8C</td><td>4</td><td align="center">D11 Total Target(64)</td><td>int64</td><td>03</td><td>31</td><td><a href="../../../../parameters/d-alarm-and-info#d11-total-target">Please refer to the category menu</a></td><td></td></tr><tr><td><a href="../../../../parameters#e-commute-parameter-list"><strong>E parameter Category</strong></a></td><td></td><td align="center"></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>04 00</td><td>1</td><td align="center">E01 NC/NO</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/e-commute#e01-nc-no-normally-closed-or-normally-open">Please refer to the category menu</a></td><td></td></tr><tr><td>04 01</td><td>1</td><td align="center">E02 OCT Info</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/e-commute#e02-oct-info.-output-control-terminal-definition">Please refer to the category menu</a></td><td></td></tr><tr><td>04 02</td><td>1</td><td align="center">E03 Pulse Width</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/e-commute#e03-pulse-width">Please refer to the category menu</a></td><td></td></tr><tr><td>04 03</td><td>1</td><td align="center">E06 Iout Def</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/e-commute#e06-iout-def.-analogue-output-definition">Please refer to the category menu</a></td><td></td></tr><tr><td>04 04</td><td>2</td><td align="center">E07 4mA Value</td><td>float32</td><td>03</td><td>30</td><td><a href="../../../../parameters/e-commute#e07-4ma-value-0ma-value">Please refer to the category menu</a></td><td></td></tr><tr><td>04 06</td><td>2</td><td align="center">E08 20mA Value</td><td>float32</td><td>03</td><td>30</td><td><a href="../../../../parameters/e-commute#e08-20ma-value">Please refer to the category menu</a></td><td></td></tr><tr><td>04 08</td><td>1</td><td align="center">E09 Iout Error</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/e-commute#e09-iout-error-analogue-output-error-value">Please refer to the category menu</a></td><td></td></tr><tr><td>04 09</td><td>2</td><td align="center">E11 4mA Adj uA</td><td>float32</td><td>03</td><td>30</td><td><a href="../../../../parameters/e-commute#e11-4ma-adj.-ua-0ma-adj.-ua">Please refer to the category menu</a></td><td></td></tr><tr><td>04 0B</td><td>2</td><td align="center">E12 20mA Adj uA</td><td>float32</td><td>03</td><td>30</td><td><a href="../../../../parameters/e-commute#e12-20ma-adj.-ua">Please refer to the category menu</a></td><td></td></tr><tr><td>04 0D</td><td>1</td><td align="center">E13 Iout Range</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/e-commute#e13-analogue-output-range">Please refer to the category menu</a></td><td></td></tr><tr><td>04 0E</td><td>1</td><td align="center">E14 PulseV2 Unit</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/e-commute#e14-pulse-v2-unit">Please refer to the category menu</a></td><td></td></tr><tr><td>04 0F</td><td>1</td><td align="center">E17 Endianness</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/e-commute#e17-endianness">Please refer to the category menu</a></td><td></td></tr><tr><td><a href="../../../../parameters#f-simulate-parameter-list"><strong>F parameter Category</strong></a></td><td></td><td align="center"></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>05 00</td><td>2</td><td align="center">F01 Sim Volume</td><td>float32</td><td>03</td><td>30</td><td><a href="../../../../parameters/k-calibration#k05-totalizer-scale-cumulative-total-ratio">Please refer to the category menu</a></td><td></td></tr><tr><td>05 02</td><td>1</td><td align="center">F02 Sim Mode</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/f-simulate#f02-sim.-mode-simulation-mode">Please refer to the category menu</a></td><td></td></tr><tr><td><a href="../../../../parameters#h-system-parameter-list"><strong>H parameter Category</strong></a></td><td></td><td align="center"></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>07 00</td><td>1</td><td align="center">H01 LED Bri</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/h-system#h01-led-bri.-led-brightness">Please refer to the category menu</a></td><td></td></tr><tr><td>07 01</td><td>1</td><td align="center">H02 LCD Bri</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/h-system#h02-lcd-bri.-lcd-brightness">Please refer to the category menu</a></td><td></td></tr><tr><td>07 02</td><td>1</td><td align="center">H03 Green Light</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/h-system#h03-green-light-power-saving-mode-for-green-backlight">Please refer to the category menu</a></td><td></td></tr><tr><td>07 03</td><td>1</td><td align="center">H04 Language</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/h-system#h04-language-language-settings">Please refer to the category menu</a></td><td></td></tr><tr><td>07 04</td><td>1</td><td align="center">H06 Reset</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/h-system#h06-reset-restore-factory-defaults">Please refer to the category menu</a></td><td></td></tr><tr><td>07 05</td><td>1</td><td align="center">H07 Lock Device</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/h-system#h07-lock-device-password-protection">Please refer to the category menu</a></td><td></td></tr><tr><td>07 06</td><td>1</td><td align="center">H08 Password</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/h-system#h08-password-password-configuration">Please refer to the category menu</a></td><td></td></tr><tr><td>07 07</td><td>1</td><td align="center">H09 Home Page</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/h-system#h09-home-page-startup-display">Please refer to the category menu</a></td><td></td></tr><tr><td>07 08</td><td>1</td><td align="center">H10 Debug Page</td><td>int16</td><td>03</td><td>06</td><td><a href="../../../../parameters/h-system#h10-debug-page-diagnostics-display">Please refer to the category menu</a></td><td></td></tr></tbody></table>