User manual OMRON H8GN V1.02

[. . . ] Preset Counter/Timer H8GN 1/32-mm DIN with Communications · Only 48 x 24 x 83 mm (W x H x D) · Switch between 4-digit preset counter and 4-digit timer operation. · While using the preset counter, it is possible to switch the display to monitor the totalizing count value (8 digits). · ON/OFF-duty adjustable flicker mode that can be used to perform cyclic control is available for timer operation. · Four preset values that can be changed by the front panel key (SV-bank). [. . . ] The values displayed will be determined by the settings for Counter/Timer selection, time range, timer mode, and decimal point position made in the initial setting level. SV 0 to 3 (sp-0, sp-1, sp-2, sp-3) SV 0 to 3 is displayed only when "SV-bank used" in the advanced function setting level has been set to ON. The operator can use the keys on the front to switch between the set values (SV 0 to 3). When the set value is changed in operation mode, the set value (SV 0 to 3) set in the adjustment level for SVbank will also change. 3. Totalizing Count Value The totalizing count value is displayed only if "totalizing counter used" in the advanced function setting level has been set to ON. The leftmost four digits of the 8-digit totalizing count value will be shown in No. Cycle Time (cyti) Cycle time is displayed only when the "output mode for timer function" in the initial setting level has been set to "Z. " Sets the cycle time used for ON/OFF-duty adjustable flicker mode (Z). Cyclic control can be performed easily in ON/OFF-duty adjustable flicker mode by first setting the cycle time in the adjustment level and by using the set value in operation level to change the ON-duty ratio. =Totalizing count value: 12, 345, 687 Press the Key to simultaneously reset the totalizing count value and the present value. Key during PV display Key during totalizing count value display PV 0123012012 Totalizing count value 0123345012 Refer to Input/Output Mode Settings on page page 79 for information on totalizing counter operation. Controlling the flowrate by opening and closing the electromagnetic valve by pulse control. Cycle time ON duty (%) Control output 4. SV-bank (m-sp) SV-bank is displayed only when "SV-bank used" in the advanced function setting level has been set to ON. To use the SV-bank function, the four set values (SV 0 to 3) can be set beforehand in the adjustment level. The keys on the front of the Unit can then be used during operation to switch between the set values. For models with built-in communications, communications can be used to switch between the set values. Switch between SV Cycle time passed ON duty can be changed like an analog input by using the Up and Down Keys. SV Refer to Input/Output Mode Settings on page 80 for information on ON/OFF-duty adjustable flicker mode operation. Preset Counter/Timer H8GN C-71 Initial Setting Level (1) Counter/Timer selection (2) Input mode (3) Time range 6. Output Mode for Timer Function (outm) The output mode is displayed only when "Counter/Timer selection" in the initial setting level has been set to counter. Refer to Input/Output Mode Settings on page 79 for information on output mode operations. 7. Output Time (otim) The output time is displayed only when "output mode for counter function" in the initial setting level has been set to C or K or when "output mode for timer function" in the initial setting level has been set to A or B. When using one-shot output in the H8GN, set the output time for the one-shot output (0. 01 to 99. 99 s). One-shot output can be used only when the C or K output mode is selected for counter function or A or B output mode is selected for timer function. If the output time is set to "0" when selecting timer function, the output will be held. The output time cannot be set to "0" for counter function. (4) Timer mode (5) Output mode for counter function (6) Output mode for timer function (7) Output time (8) Counting speed (9) Input signal width 8. Counting Speed (cnts) The counting speed is displayed only when "Counter/Timer selection" in the initial setting level has been set to counter. When the H8GN is used as a counter, the operator can switch between maximum counting speeds (30 Hz/5 kHz) for CP1 and CP2. When the counting speed is set to 30 Hz, input signal chattering is removed. (10) Decimal point position 9. [. . . ] Time range : -. ---s Models with communications Data length Stop bits : 1 bit : 2 bits : None : Even : Odd : --. --s (default) : ---. -s Parity : ----s : --min--s : ---. -min Note : Settings made in the communications setting level are enabled when the power is turned ON again. : --h--min : ---. -h : ----h 3. Displayed when level 0 is selected for initial setting/ communications protection in the protect level. Preset Counter/Timer H8GN C-77 Counters Models with communications : Enabled : Disabled Operating Mode Input/Output Modes and Count Values Up (Increment) mode (up) Input edge UP CP1: Count input CP2: Count prohibit input Down (Decrement) mode (down) CP1: Count input CP2: Count prohibit input Count prohibit Count prohibit n n-1 n-2 Count Count n-3 n-4 n-5 DOWN CP1: Count input CP2: Count prohibit input CP1: Count input CP2: Count prohibit input Count prohibit Count prohibit n n-1 n-2 Count Count n-3 n-4 n-5 Up/Down B Individual input (ud-b) Up/Down C quadrature input (ud-c) Count Count Note: 1. (A) indicates the minimum signal width and (B) requires at least 1/2 the minimum signal width. If these conditions are not met, a counting error (+1 or -1) may occur. [. . . ]