17
2-1-11 ABS Interface Function
The CQM1-CPU44-EV1 has two dedicated ports (CN1 and CN2) for receiving
grey codes from an absolute-type rotary encoder.
These two ports can be used to carry out absolute-type high-speed counter
interrupts. Grey codes input to the ports can be received at a computation speed
of up to 4 kHz, and processing can be executed according to that value.
LED Indicators
Ready (green)
Lit when the ABS interface function is ready. Turns off
in Program Mode or when an error occurs.
Error (red)
Lit when there is an error in the PC Setup for the ABS interface function.
RDY ERR
IN1
INC1
DEC1
Encoder input (orange)
Refer to the table below.
IN2
INC2
DEC2
Port 1 Port 2 Function
IN1 IN2 Lit when input bit 0 of each port is ON.
INC1 INC2 Lit when value input for each port is incremented.
DEC1 DEC2 Lit when value input for each port is decremented.
Dimensions With Connectors Mounted
107 mm
Approx. 180 mm
Encoder Input Indicators
CPU Unit Section 2-1
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