Omron CQM1H - PROGRAM User Manual

122
Absolute Encoder Interface Board Section 2-3
2-3-2 Functions
The Absolute Encoder Interface Board is an Inner Board that counts two gray
binary code inputs from an absolute (ABS) rotary encoder.
Absolute High-speed
Counter with Interrupt
Function
The Absolute Encoder Interface Board reads binary gray codes (inverted
binary codes) input from an absolute encoder through ports 1 and 2 at a max-
imum counting rate of 4 kHz, and performs processing according to the input
values.
Operating Modes
BCD Mode and 360° Mode.
Resolutions
One of the following can be set: 8 bits (0 to 255), 10 bits (0 to 1023), or 12 bits
(0 to 4095). The resolution should be set to match that of the encoder con-
nected.
Interrupts
An interrupt subroutine can be executed when the PV (present value) of the
absolute high-speed counter matches a specified target value or lies within a
specified comparison range.
Note The use of an absolute encoder means that the position data can be retained
even during power interrupts, removing the need to perform an origin return
when power is returned. In addition, the origin compensation function allows
the user to specify any position as the origin.
2-3-3 System Configuration
Absolute Encoder Interface Board
Workpieces
Motor drive
r
(Inverter)
le
Absolute Encoder
Motor
E69-DC5 connector cable
Detects an
g
le of rotation and controls
p
rocessin
g
table.
Processing tab

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)