Omron CPM1 Programming Manual page 142

The following table shows the words and bits related to synchronized pulse con-
trol.
Word Bits
248 00 to 15
249 00 to 15
AR 11 15
AR 12 15
Start Frequency Control
This function specifies the bits for pulse outputs (01000, 01001) and the fre-
quency scaling factor (1% to 1,000%), and starts the pulse output.
(@)SYNC(----)
000
P
2
C
C
Note When using SYNC(----) to specify a frequency scaling factor, be careful to keep
the pulse output frequency below 10 kHz.
Change Frequency Scaling Factor
This function changes the frequency scaling factor during synchronized control
(during pulse output) by specifying the bits for pulse outputs (01000, 01001) and
the frequency scaling factor (1% to 1,000%) and executing SYNC(----).
Stop Synchronized Control
This function stops the pulse outputs.
(@)INI(61)
000
005
000
Note The pulse output can also be stopped by switching the PC to PROGRAM mode.
Read Input Frequency
This function reads the input frequency PV.
Using an Instruction
(@)PRV(62)
000
000
D
D+1
Using Data Areas
As shown in the following illustration, the input frequency is stored in words 248
and 249.
Name
Input frequency PV, rightmost digits Reads the input
Input frequency PV, leftmost digits
Pulse output in progress for pulse
output 0
Pulse output in progress for pulse
output 1
Pulse input port designation (000: High-speed counter)
Pulse output port designation (000: Pulse output 0; 010: Pulse output 1)
Frequency scaling factor setting
Frequency scaling factor
Register the frequency scaling factor to be set.
#0001 to #1000 (4 digits BCD): 1 to 1,000%
Port specifier (000: High-speed counter)
Control designation (005: Stop synchronized control)
Fixed: 000
Fixed: 000
Control designation (000: Read high-speed counter input frequency)
Beginning word for storing input frequency PV
D
Rightmost 4 digits
00000000 to 00020000 (8 digits BCD)
Leftmost 4 digits
Word 248 Input frequency PV (Rightmost)
Word 249 Input frequency PV (Leftmost)
Section 2-7
Contents
frequency PV. f PV
ON: Output in progress
O OFF: Stopped Sto ed