Operating Memory Area - Omron CJ1W-C113 - REV 02-2008 Operation Manual

Operating Memory Area

4-5

Operating Memory Area

Output
Model Words
X Y Z
axis axis axis
NC4@3 n n+2 n+4
NC2@3 n n+2
NC1@3 n
The operating memory area is the area in the CIO Area allocated to the out-
puts used for sending commands to the PCU and the inputs used for monitor-
ing PCU status.
The area allocated as the operating memory area is contained in the Special
I/O Unit Area within the CPU Unit's CIO Area. The beginning word of the oper-
ating memory area is determined according to the unit number set for the
PCU according to the following equation.
Beginning word of operating memory area, n = 2000 + 10 × unit number
The operating memory area is divided into outputs and inputs. Commands
related to operations are allocated to the output memory area, and the com-
mands are output to the Position Control Unit (PCU) when their respective bits
are turned ON, or at the rising edge ( ↑ ) when the bits are turned ON. The
PCU's status and the status of external I/O are input from the PCU to the
operating memory area.
The memory allocation of the operating memory area is shown in the follow-
ing table. For details such as operation timing, refer to the section for the rele-
vant function.
Bits Name
U
axis
n+6 00 Memory Sequence
operation Number
commands Enable
01 START
02 INDEPEN-
DENT START
03 Direct opera- ABSOLUTE
tion com- MOVEMENT
mands
04 RELATIVE
MOVEMENT
05 INTERRUPT
FEEDING
06 Origin posi- ORIGIN
tioning com- SEARCH
mands
07 ORIGIN
RETURN
08 PRESENT
POSITION
PRESET
Operation
In memory operation, this setting specifies
whether the sequence number designated
in the operating data area is enabled or
disabled for beginning operation.
At the rising edge ( ↑ ) when this bit turns
ON, memory operation starts.
At the rising edge ( ↑ ) when this bit turns
ON, memory operation starts. The com-
pletion code is treated as "terminating,"
except for when it is set to "bank end."
At the rising edge ( ↑ ) when this bit turns
ON, direct operation is started with the
position designated in the operating data
area treated as an absolute position.
At the rising edge ( ↑ ) when this bit turns
ON, direct operation is started with the
position designated in the operating data
area treated as a relative position.
At the rising edge ( ↑ ) when this bit turns
ON, interrupt feeding begins for direct
operation.
At the rising edge ( ↑ ) when this bit turns
ON, an origin search is executed.
At the rising edge ( ↑ ) when this bit turns
ON, positioning returns to the origin.
At the rising edge ( ↑ ) when this bit turns
ON, the present position is forcibly
changed to the position set in the operat-
ing data area, and then the origin is estab-
lished based on the changed present
position.
Section 4-5
Reference
SECTION 8
Memory
Operation
SECTION 7
Direct Opera-
tion
9-3 Interrupt
Feeding
SECTION 6
Defining the
Origin
95