User’s manual IM DX1K-S2E Ed-01
Contents 1. 2. Foreword ....................................................................................................................... 2 LOG Input Specifications ............................................................................................... 3 2.1. Converting the LOG Input (Relationship between the Input Voltage and Digital Display).................................................................................................................... 3 2.2. LOG Input Mode .............
1. Foreword Thank you for purchasing the DX1000(N)/DX2000 DXAdvanced. This user’s manual describes the functions listed below. For a description of other standard functions, see the DX1000(N) or DX2000 User’s Manual (IM04L41B01-01E or IM04L42B01-01E) and the Communication Interface User’s Manual (IM04L41B01-17E). LOG input function Simulation function Note) The Configurator on the accompanying software application DAQSTANDARD for DXAdvanced does not support the setup items of these TOKUCHU functions.
2. LOG Input Specifications 2.1. Converting the LOG Input (Relationship between the Input Voltage and Digital Display) Trend display (logarithmic scale): Displays the input voltage on a logarithmic scale. Digital display: Displays the result obtained by converting the input voltage using the equation below. ¾ The relationship between the input voltage of special LOG range and digital display value is shown below. Input voltage Lower limit of display span Scale lower limit VL 1.
2.2. LOG Input Mode This mode allows you to measure the DC voltage input (DCV: 20 mV, 60 mV, 200 mV, 2 V, 6 V, 20 V, and 50 V), convert to logarithmic scale, and display the data. Selectable span range: Same range as the DC voltage input ¾ Span Lower must be less than Span Upper. Selectable scale range: 1.0E-15 to 1.0E+15 (15 decades maximum) ¾ Scale Lower must be less than Scale Upper. Select two or three digits for the mantissa. You can set the unit. 2.2.1. Setting the LOG Input 1. 2. 3. 4. 5.
Table 2-1 Log Input Mode Settings Setup Item Selectable Items Description (Selectable Range) Range Same as the DCV Sets the range. range Span Lower Varies depending on the Span Upper Varies depending on the Sets the span lower limit. input type input type Scale Lower 1.0E-15 to 1.0E+15 Sets the span upper limit. * Span Lower must be less than Span Upper. Sets the scale lower limit. 1.00E-15 to 1.00E+15 when the number of displayed mantissa digits is 3. Scale Upper 1.0E-15 to 1.
2.3. Alarm Alarm types in LOG input mode ¾ H, L, T, and t only. Set the alarm value using a voltage. Computing method of alarm values ¾ Computing equation of the digital display value From Y = 10(SU-SL)*(X-VL)/(VU-VL)+SL logY = (SU-SL)*(X-VL)/(VU-VL)+SL X = (logY-SL)*(VU-VL)/(SU-SL)+VL ¾ For a computation example, see Table 2-2. Alarm hysteresis fixed to 0%. ¾ The alarm hysteresis settings specified in the basic setting mode for the measurement channel are invalid.
2.4. Computation Function (Option) When a channel set to LOG is used in a computation, error data is used as its measured value. 2.5. Report Function Report computation results in error if a channel set to LOG is assigned to a report channel. 2.6. Functions That Cannot Be Used Partial expanded display ¾ Partial expanded display cannot be specified on a channel in LOG input mode.
2.8. Communication Output and Binary Data Output Format The binary data is an A/D normalized value of the channel set to LOG. ¾ Measured data output (FD command) ¾ FIFO data output (FF command) (Example) If the input is 3.000 V measuring in the 6-V range, the binary data is 10000 (0x2710). If the measured result is -OVER, the value is set to 0x8001. If the measured result is +OVER, the value is set to 0x7FFF. Converting from binary data to LOG value 1.
2.10. Communication Commands 2.10.1.
3. Accuracy and Display Resolution 3.1.
Computing example of the display value accuracy ¾ Integration time 50 Hz ¾ 2 V range Voltage span 0.0000 to 1.0000 V ¾ LOG span -2 to 3 1) Determine the converting equation for the setting. • Y = 10(SU-SL)*(X-VL)/(VU-VL)+SL = 10(3-(-2))*(X-0)/(1-0)+(-2) = 10(5X-2) 2) Determine the measurement error with respect to the input voltage. • Measurement accuracy of the 2 V range = ±(0.05% of rdg + 12 digits) = ±(0.
4. Simulation Function 4.1. Display Freeze Function 4.1.1. Specifications A function used to stop the updating of the time, trend, digital values, and bar graph. ¾ The display freeze function is controlled through the event action function or communication commands. ¾ Alarm summary, message summary, and various log displays are also not updated if they are displayed. While the display is frozen, display data is also not updated. Key operation is possible while the display is frozen.
Event action functions that do not operate while the display is frozen ¾ See Table 4-1. ¾ If a level action such as Memory start/stop is executed due to a level event such as remote while the display is frozen, the DX operation may become mismatched with the event state. • Example) If Memory start/stop using remote is specified and the remote control input is switched from closed to open while the display is frozen, the memory stop operation is not executed.
4.1.3. Setting the Display Freeze Function 1. 2. 3. 4. Press MENU (switch to the setting mode). Select Timer, Event action > Event action. Set the Logic box number, Event (set to Remote), and Remote number. In the Action box, press the Freeze soft key. Setup Screen Example for the Display Freeze Function (DX1000(N) Example) 4.1.4. Operation While the Display is frozen If the DX is in a state in which it can switch to the basic setting mode, the DX can switch to the mode even while the display is frozen.
4.2. Memory and Trend Clear Function 4.2.1. Specifications A function used to clear the internal memory and the trend. ¾ Clears the data area of the internal memory (data files that have been created are not cleared). ¾ Can be executed while memory sample is in progress. ¾ If you carry out the clear operation on the historical trend display, the display retains the condition before the operation.
4.2.3. Setting the Memory and Trend Clear Function 1. 2. 3. 4. Press MENU (switch to the setting mode). Select Timer, Event action > Event action. Set the Logic box number, Event (set to Remote), and Remote number. In the Action box, press the MemClear soft key. Setup Screen Example for the Memory and Trend Clear Function (DX1000(N) Example) 4.3. Communication Commands The same command is used to control the display freeze function and memory and trend clear function.
4.4. Enabling/Disabling the Time Display 4.4.1. Specifications A function used to disable the time display on the operation display. Displays on which the time display is disabled ¾ See Table 4-2 Displays on Which the Time Display Is Enabled/Disabled and the Description.
4.4.2. Enabling/Disabling the Time Display 1. 2. 3. 4. Press MENU (switch to the setting mode). Hold down FUNC for 3 s to switch to the basic setting mode. Select Environment > Digits, Time indicate. Set Time indicate on/off to On or Off. Setup Screen Example for Enabling/Disabling the Time Display (DX1000(N) Example) Table 4-3 Setting the Time Display Setup Item Selectable Items Description (Selectable Range) Time display On/Off Enables/disables the time display. Off: Disable On: Enable 4.4.3.
4.5. Special Current Value Mark Function 4.5.1. Specifications A function used to display the channel using two digits for the current value mark (see Fig. 4-1, “Current Value Mark”) that is displayed in the scale display position on the trend/historical trend display. ¾ For the channel display, see Table 4-4. ¾ If you set the display to two digits, you will not be able to distinguish between measurement, computation, and external input channels. In addition, the external input channels will overlap. Fig.
4.5.2. Setting the Channel Display of the Current Value Mark 1. 2. 3. 4. Press MENU (switch to the setting mode). Hold down FUNC for 3 s to switch to the basic setting mode. Select Environment > AUX. Set item 1 under AUX to On (two digits, special setting) or Off (three digits, standard setting).
