Omron CQM1H - PROGRAM User Manual

253
Timer and Counter Instructions Section 5-16
The following diagram shows the structure of a range comparison table for
use with high-speed counters 1 to 4 when set for linear counting.
The following diagram shows the structure of a range comparison table for
use with high-speed counters 1 to 4 when set for ring counting. The ring value
specifies the number of points in the ring and the maximum count value (ring
value = max. count value+1). Do not change the ring value while a compari-
son is in progress.
The following table shows the possible values that can be set for high-speed
counters 1 to 4 for target values, lower limit values, and upper limit values.
The hexadecimal value F in the most significant digit indicates that the value
is negative (a negative 7-digit value.)
Range Comparison Operation
The following diagram illustrates the operation of range comparisons for range
settings 1 through 4 set consecutively in the comparison table.
As illustrated above, the current count is compared against all the comparison
ranges at the same time and the result for each range is output.
Data format Possible values
Linear counting Ring counting
BCD F838 8608 to 0838 8607 0000 0001 to 0838 8607
Hexadecimal F800 0000 to 07FF FFFF 0000 0001 to 07FF FFFF
TB Lower limit #1, lower 4 digits (BCD)
TB+1 Lower limit #1, upper 4 digits (BCD)
TB+2 Upper limit #1, lower 4 digits (BCD)
TB+3 Upper limit #1, upper 4 digits (BCD)
TB+4 Bit pattern #1
TB+75 Lower limit #16, lower 4 digits (BCD)
TB+76 Lower limit #16, upper 4 digits (BCD)
TB+77 Upper limit #16, lower 4 digits (BCD)
TB+78 Upper limit #16, upper 4 digits (BCD)
TB+79 Bit pattern #16
First range setting
Sixteenth range setting
TB Ring value, lower 4 digits (BCD)
TB+1 Ring value, upper 4 digits (BCD)
TB+3 Lower limit #1, lower 4 digits (BCD)
TB+4 Lower limit #1, upper 4 digits (BCD)
TB+5 Upper limit #1, lower 4 digits (BCD)
TB+6 Upper limit #1, upper 4 digits (BCD)
TB+7 Bit pattern #16
TB+77 Lower limit #16, lower 4 digits (BCD)
TB+78 Lower limit #16, upper 4 digits (BCD)
TB+79 Upper limit #16, lower 4 digits (BCD)
TB+80 Upper limit #16, upper 4 digits (BCD)
TB+81 Bit pattern #16
First range setting
Sixteenth range setting
Ring value setting
Count
Range
1
0
Range
4
Range
3
Range
2

Omron CQM1H - PROGRAM Specifications

General

I/O Capacity	Up to 512 points
Power Supply	100 to 240 VAC, 50/60 Hz or 24 VDC (depending on model)
Instruction Set	Basic and advanced instructions
Operating Temperature	0 to 55°C
Program Capacity	7.2K to 15.2K steps
Communication Ports	RS-232C
Expansion Slots	Up to 3 expansion units
Type	Programmable Logic Controller (PLC)
CPU Type	RISC
Program Memory	7.2K to 15.2K steps
I/O Points	512 max
Expansion Capability	Up to 3 expansion units
Data Memory	RAM (battery backup)