Omron CPM1 Programming Manual

224
Timer and Counter Instructions Section 5-15
Note 1. The subroutine number can be 0000 to 0255 (0000 to 0127 for the CQM1-
CPU11/21-E, 0000 to 0049 for the CPM1/CPM1A) and the subroutine will
be executed as long as the counter’s PV is within the specified range. A
value of FFFF indicates that no subroutine is to be executed.
2. The subroutine number can be 0000 to 0255 (0000 to 0127 for the CQM1-
CPU11/21-E, 0000 to 0049 for the CPM1/CPM1A) to activate the subrou-
tine when incrementing.
3. Allow a time interval of at least 2 ms between the lower and upper limits
(upper limit – lower limit > 0.002
× input pulse frequency) in range compar-
isons with high-speed counters 1 and 2.
The following table shows the possible values for target values, lower limit val-
ues, and upper limit values. The hexadecimal value F in the most significant
digit of indicates that the value is negative.
In 360
° mode the absolute high-speed counter’s angular values are internally
converted to binary values. The binary value after conversion depends on the
resolution selected in the PC Setup (DM 6643 and/or DM 6644). The following
table shows the converted values for 5
° to 45°.
For higher values, find the converted value to the nearest 45
° and add the
remainder from the table. For example, to convert 145
° into 8-bit resolution:
32
×3 (for 135°) + 7 (for 10°) = 103.
!Caution With 10-bit and 12-bit resolution, interrupt processing might not be triggered
when the angular value matches the comparison value because the con-
verted values do not match exactly.
Counter Possible values
High-speed counter 0 Up/Down mode: F003 2767 to 0003 2767
Incrementing mode: 0000 0000 to 0006 5535
High-speed counters 1 and 2 Linear mode: F838 8607 to 0838 8607
Ring mode: 0000 0000 to 0006 4999
Absolute high-speed counters 1
and 2
BCD mode: 0000 to 4095
360° mode: 0000 to 0355 (5° units)
Resolution Converted value
5° 10° 15° 20° 25° 30° 35° 40° 45°
8-bit (0 to 255) 4 7 11 14 18 21 25 28 32
10-bit (0 to 1023) 14 28 43 57 71 85 100 114 128
12-bit (0 to 4095) 57 114 171 228 284 341 398 455 512

Omron CPM1 Specifications

General

Model	CPM1
Manufacturer	Omron
Instruction Set	Basic and advanced instructions
Power Supply	100 to 240 VAC or 24 VDC
Communication	RS-232C
I/O Points	10, 20, 30, or 40 points depending on the model
Timers	Yes, multiple timers available
Counters	Yes, multiple counters available
Input Voltage	24V DC
Output Type	Relay or transistor
Number of I/O Points	10, 20, 30, 40
Communication Ports	RS-232C (optional)
Operating Temperature	0°C to 55°C
Storage Temperature	-20°C
Humidity	10% to 90% (non-condensing)
Dimensions	Varies depending on the model
Weight	Varies depending on the model
Program Memory	2048 steps (2K steps)