Omron CJ1W-ECT21 Operation Manual page 84

3 Data Exchange with the CPU Unit
First Word In IN Data Area
Use this device variable to specify the starting word that is used for receiving data from the EtherCAT
master (TxPDO).
Name of device variable
for CJ-series Unit
*_AlocInAreaOffset
 First Input Word in Memory for the EtherCAT Slave Unit IN Data Area
Area type in memory for
CJ-series Unit
---
CIO Area (CIO)
Data Memory (DM)
Work Area (WR)
Holding Area (HR)
Expansion Data Memory (EM)
Bank 0 to Bank C
*1. Expansion Data Memory (EM) areas vary for NJ-series CPU Unit models. Check the NJ-series CPU Unit spec-
ifications for bank availability.
IN Data Area Size
Use this device variable to specify the IN data area size that is used for receiving data from the Ether-
CAT master (TxPDO). This size must match the EtherCAT master configuration size for TxPDO in
bytes.
Name of device variable
for CJ-series Unit
*_AlocInAreaSize
3 - 22
Type R/W
WORD RW
Do not use
16#0000 to 17FF
16#0000 to 7FFF
16#0000 to 01FF
16#0000 to 01FF
16#0000 to 7FFF
(E0_00000 to E0_32767, ···, EC_00000 to EC_32767) for all banks
*1
Type R/W
UINT RW
CJ-series EtherCAT Slave Units Operation Manual for NJ-series CPU Unit (W542)
Name
First word in IN data Specifies the IN data area starting
area word.
Data range is based on the area
type. Refer to First Input Word in
Memory for the EtherCAT Slave
Unit IN Data Area on page 3-22 for
the data range of each area type.
Default: 16#0000
Word range
Name
IN data area size Specifies the IN data area size.
Data selection of 0, 50, 100, 200 or
400 is possible.
Default: 0
Function
Function