Omron FQM1-CM001 High-speed Analog Sampling FQM1-MMA21 Only, Signal Range 1 to 5 V and 4 to 20 mA

Analog Input Functions	Section 7-9
Signal Range: 1 to 5 V and 4 to 20 mA
Analog input (V)	Analog input (mA)
+5.2 V	+20.8 mA
+5.0 V	+20.0 mA

+1.0 V	+4.0 mA
+0.8 V	+3.2 mA

		Stored value
0000	0FA0	(4-digit Hexadecimal)
FF38	1068

Resolution of 1/4,000

Signal Range: 0 to 5 V

Analog input (V)

+5.25 V

+5.00 V

0V −0.25 V

		Stored value
0000	0FA0	(4-digit Hexadecimal)
FF38		1068

Resolution of 1/4,000

7-9-7 High-speed Analog Sampling (FQM1-MMA21 Only)

Overview

CTBL(882) Instruction Operation

When an FQM1-MMA21 Motion Control Module is being used, the Motion Control Module can be synchronized with pulse inputs from the encoder to collect analog data.

This sampling method checks measurements in synchronization with the position, an operation which could not be performed with scheduled interrupts in earlier controllers.

When the CTBL(882) instruction is used as a high-speed analog sampling function, the Motion Control Module can start sampling analog input data at high speed when a preset counter PV is reached, and store the specified number of samples automatically in the DM Area.

This function can be used with high-speed counter 1 only.

The CTBL(882) instruction starts a specified interrupt task when the high-speed counter PV of pulse input 1 matches a specified target value.

If the CTBL(882) instruction is executed in the interrupt task to perform high-speed analog sampling, the Motion Control Module will sample analog values at the interval (circular counter size) specified by the CTBL(882) instruction.

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