Omron CJ1W-NC271 - 12-2009, Operation Manual

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Common Operating Memory Area
Section 4-6
4-6-2 Common Operating Memory Area Words
The memory allocation of the Common Operating Memory Area is shown in
the following table. For details on functions and operations of each word, such
as operation timing, refer to the section given in the
Details column.
Common Operating
Output Memory Area n = CIO 1500 + (unit number
×
25)
I/O Word Bits Category Name Operation Details
Output
(CPU
Unit to
PCU) n 00 --- UNIT ERROR
RESET Resets the Unit common error
when this bit turns ON. 12-6 Error Reset
01 Data trans-
fer com-
mands WRITE DATA Writes data to the PCU from
the CPU Unit when this bit
turns ON. 5-2-1 Writing PCU
Parameters
02 READ DATA Reads data from the PCU to
the CPU Unit when this bit
turns ON. 5-2-2 Reading PCU
Parameters
03 SAVE DATA Saves the contents of the
PCU's internal memory to its
flash memory when this bit
turns ON. 5-2-3 Saving PCU
Parameters
04 to 15 --- Not used (reserved
by the system). These bits are reserved by the
system. Do not use. ---
n+1 00 Communi-
cations
control
commands
---
CONNECT Starts/stops MECHA-
TROLINK communications. 6-3-1 Establishing
Connections
01 to 05 Reserved by the sys-
tem. These bits are reserved by the
system. Do not use. ---
06 WRITE BACKUP
DATA Writes data saved in the
PCU’s internal flash memory
to the Memory Card installed
in the CPU Unit when this bit
turns ON. 13-4-2 Memory Card
Backup
07 READ BACKUP
DATA Reads data from the Memory
Card installed in the CPU Unit
to the PCU’s internal flash
memory when this bit turns
ON.
08 to 14 Not used (reserved
by the system). These bits are reserved by the
system. Do not use. ---
15 REJOIN (See note.) Restarts MECHATROLINK
communications. 6-3-4 Rejoining the
Connection
n+2 --- Axes to connect
(See note.) Specifies the axes for which to
start MECHATROLINK com-
munications. 6-3-5 Specifying the
Axes to Connect
n+3 to
n+5 --- --- Not used (reserved
by the system). These bits are reserved by the
system. Do not use. ---