Omron NX-EC0112 User Manual

6 - 71
6 Incremental Encoder Input Units
NX-series Position Interface Units User’s Manual (W524)
6-9 Functions
6
6-9-11 Pulse Period Measurement
If pulse period measurement is enabled, measurement of the period measurement value is started from
the first detected edge.
After measurement is started, the period measurement value is updated every time a target edge is
detected.
The internal Unit counter for the pulse period measured value is a ring counter. When the upper limit
value for the counter (2,147,483,647) is reached, an overflow flag is set and the count value returns to
0 before its counting is continued.
If pulse period measurement is disabled when the power is turned ON or when the Unit is restarted, the
pulse period measured value will be 0.
The following three bits are used to control pulse period measurement
Refer to Pulse Period Measurement Function on page 6-41 for information on the bit configuration of
the Pulse Period Measurement Function parameter.
Setting Flags and Parameters
Flag name Function Operation
Pulse Period Measurement Enable Enables or disables pulse period
measurement.
*1
0: Disable
1: Enable
*1. If the Edge Detection Method parameter is set to disable (0) pulse period measurement, the function is dis-
abled regardless of the setting of this bit.
When Enabled (0 to 1)
• The Pulse Period Measurement
Enabled bit is set.
• The Pulse Period Measured
Value is reset to 0.
• The Pulse Period Measurement
Value Overflow Flag is reset.
When Disabled (0)
• The Pulse Period Measurement
Enabled bit is reset.
• The Pulse Period Measured
Value is set to 0.
• The Pulse Period Measurement
Value Overflow Flag is reset.
Pulse Period Measurement Value
Clear
Clears the Pulse Period Measured
Value.
0 to 1: Value cleared.
*2
*2. This bit is valid when the Pulse Period Measurement Function is enabled.
When Enabled (0 to 1)
• The Pulse Period Measured
Value is reset to 0.
• The Pulse Period Measurement
Value Overflow Flag is reset.
• When the above processing is
completed, the Pulse Period
Measurement Value Clear Com-
pleted bit is set.
*3
*3. Reset this bit to reset the Pulse Period Measurement Value Clear Completed bit.
Pulse Period Measurement Value
Overflow Flag Clear
Resets the Pulse Period Measure-
ment Value Overflow Flag.
0 to 1: Flag reset.
*2
When Enabled (0 to 1)
• The Pulse Period Measurement
Value Overflow Flag is reset.

Omron NX-EC0112 Specifications

General

Brand	Omron
Model	NX-EC0112
Category	Controller
Language	English