Omron FQM1-MMP21 用户手册
148
Pulse Inputs
Section 7-5
7-5
Pulse Inputs
7-5-1
Applicable Models
7-5-2
Outline
The FQM1-MMP21 and FQM1-MMA21 Motion Control Modules can receive
pulse inputs. The following table shows the processes that can be performed
by combining the pulse input function with the high-speed counters to count
pulse signals from a rotary encoder or other device and perform processing
based on the counter PV.
pulse inputs. The following table shows the processes that can be performed
by combining the pulse input function with the high-speed counters to count
pulse signals from a rotary encoder or other device and perform processing
based on the counter PV.
Note
Interrupts cannot be generated for range comparisons. Only bit patterns are
output.
output.
The high-speed counter PV movement during a fixed time interval (equivalent
to the travel distance) and the high-speed counter’s frequency can also be
monitored as required.
to the travel distance) and the high-speed counter’s frequency can also be
monitored as required.
7-5-3
Specifications
Model
Functions
FQM1-MMP21
Motion Control Module for Pulse I/O
FQM1-MMA21
Motion Control Module for Analog I/O
Process
Description
Target value comparison
interrupts
interrupts
An interrupt task is executed when the high-speed
counter PV equals a preset target value.
counter PV equals a preset target value.
Bit pattern outputs for
range comparisons
range comparisons
When the high-speed counter PV is within a specified
range, the user-set bit pattern specified in the compari-
son table is output internally.
range, the user-set bit pattern specified in the compari-
son table is output internally.
Measurement
modes 1 and 2
modes 1 and 2
Movement in the high-speed counter or input pulse
counting speed can be displayed while monitoring the
high-speed counter PV.
counting speed can be displayed while monitoring the
high-speed counter PV.
High-speed counter PV
latch
latch
High-speed counters 1 and 2 each have a latch register.
Two latch inputs can be used to capture the high-speed
counter PVs at high speed.
Two latch inputs can be used to capture the high-speed
counter PVs at high speed.
Item
Specification
Number of counters
2
Pulse input operation mode
(Set in System Setup.)
(Set in System Setup.)
Phase differential
Increment/decrement
Pulse + direction
Input pin
numbers
numbers
High-speed
counter 1
counter 1
High-speed
counter 2
counter 2
24 V: 1 (5)
LD: 3 (5)
LD: 3 (5)
24 V: 2 (6)
LD: 4 (6)
LD: 4 (6)
Phase A
Increment pulse
Pulse
24 V: 7 (11)
LD: 9 (11)
LD: 9 (11)
24 V: 8 (12)
LD: 10 (12)
LD: 10 (12)
Phase B
Decrement pulse
Direction pulse
24 V: 13 (17)
LD: 15 (17)
LD: 15 (17)
24 V: 14 (18)
LD: 16 (18)
LD: 16 (18)
Phase Z
Reset pulse
Reset pulse
Input method
Phase differential
×1,
×2, or ×4 (switchable)
Single-phase
×2
Single-phase + direc-
tion
tion
Set in the System Setup.
(Set input for pulse input counter 1 and counter 2.)
Counting speed (Set separately for each
port in the System Setup.)
port in the System Setup.)
50 kHz (default) or 500 kHz (2 MHz when using phase differential
×4)
Counter operation
Linear Counter or Circular Counter (Set in the System Setup.)