Omron FQM1-CM001 Analog Input Function Specifications, 7-9-3, Analog Input FunctionsSection

Analog Input FunctionsSection 7-9

7-9-3	Analog Input Function Specifications
	Item					Specification
Input signals				Voltage inputs, current inputs
No. of analog inputs				1 input
Input signal ranges				Select one of the following input ranges in the System Setup (Analog Input/Output
				Tab Page − Input Setting): −10 to +10 V, 0 to 10 V, 0 to 5 V, 1 to 5 V, or 4 to 20 mA.
A/D conversion time				40 ∝s
Input response time				1.5 ms or less (See note.)
Resolution				−10 to +10 V: 1/16,000 (14 bits)
				0 to 10 V:	1/8,000 (13 bits)
				0 to 5 V:	1/4,000 (12 bits)
				1 to 5 V:	1/4,000 (12 bits)
				4 to 20 mA:	1/4,000 (12 bits)
Analog input refresh method				Analog input value can be acquired by either of the following methods:
				• END Refresh
				Read the data from A550 in the Motion Control Module’s Auxiliary Area. (Data is
				stored in A550 during END refreshing after execution of END instruction)
				• Immediate Refresh
				Read the present analog input value immediately by executing the PRV(881)
				instruction.
Analog input value storage area				A550 of Motion Control Module’s Auxiliary Area
				With the immediate refresh, the present analog input value can be acquired by exe-
				cuting the PRV(881) instruction.
Overall accuracy				Voltage input:			Current input:
				±0.2% (23 ±2°C)			±0.4% (23 ±2°C)
				±0.4% (0 to 55°C)			±0.6% (0 to 55°C)
Function		Offset/gain		Input values can be adjusted to correct inputs suitable for the connected devices.
		adjustment		In PROGRAM mode, specify an offset or gain value, input the analog value from the
				device (the value that will be corrected with the offset or gain value), and use the
				CX-Programmer to monitor the adjustment value in the Adjustment Value Monitor
				Area (A572 and A573).
				It is also possible to monitor averaged offset or gain values. If averaging is required,
				set the number of average value samples in A574.
		Note	The following diagram is provided as a reference example. This example
			shows the input response (step response) characteristics of an input when the

external input signal is changed in a step pattern. In this case, the input range is −10 to +10 V.

Response (%) 100% 80%

50%

0 0.5 1 1.5 Time (ms)

217