Omron CP1L - Page 280

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Pulse Outputs Section 5-2
MODE CONTROL: INI(880) In addition to the various interrupt and high-speed counter functions, INI(880)
can be used to change the pulse output PV or stop the pulse output.
Note This section explains the functions related to pulse outputs only. For details on
the INI(880) instruction’s high-speed counter or interrupt functions, refer to
6-1
Interrupt Functions
or 5-1 High-speed Counters .
HIGH-SPEED COUNTER
PV READ: PRV(881)
In addition to its interrupt and high-speed counter functions, PRV(881) can be
used to read the pulse output PV or pulse output status information.
The status of the following flags is read as status information:
• Pulse Output Status Flag
• PV Underflow/Overflow Flag
• Pulse Output Amount Set Flag
• Pulse Output Completed Flag
• Pulse Output Flag
• No-origin Flag
• At Origin Flag
• Pulse Output Stopped Error Flag
Operand Contents
P Port specifier 0000 hex: Pulse output 0
0001 hex: Pulse output 1
CCon-
trol
data
Bits 0 to 3 Not used. (Always 0 hex.)
Bits 4 to 7 Not used. (Always 0 hex.)
Bits 8 to 11 Pulse output method (See note.)
0 hex: CW/CCW
1 hex: Pulse + direction
Bits 12 to 15 Mode
0 hex: Origin search
1 hex: Origin return
Operand Contents
P Port specifier 0000 hex: Pulse output 0
0001 hex: Pulse output 1
1000 hex: PWM output 0
1001 hex: PWM output 1
C Control data 0002 hex: Change the PV.
0003 hex: Stop pulse output.
NV First word of new PV NV and NV+1 contain the new PV when changing the
PV. (N contains the rightmost 4 digits and N+1 con-
tains the leftmost 4 digits.)
0000 0000 to FFFFFFFF hex
INI(880)
P
C
NV
P: Port specifier
C: Control data
NV: First word of new P
V
PRV(881)
P
C
D
P: Port specifier
C: Control data
D: First destination word