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3 Memory Allocations
CJ-series EtherCAT Slave Units Operation Manual (W541)
3-2 CIO Area Allocations
3
3-2-2 Details of the Allocated CIO Area Words
5 I/O Communication
Error
Unit ON:
Indicates that RxPDO data from the EtherCAT master is
not refreshed during the monitoring time.
OFF:
Indicates that RxPDO data from the EtherCAT master is
refreshed during the monitoring time.
Default: OFF
6 Illegal State Transition
Request Received
Unit ON:
Indicates that an unexpected state transition request
has been sent from the EtherCAT master.
OFF:
Indicates that an unexpected state transition request
has not been sent from the EtherCAT master.
Default: OFF
7 I/O Refresh Error Unit ON:
Indicates that an I/O Refresh Error occurred while in
operation.
OFF:
Indicates that an I/O Refresh Error has not occurred
while in operation.
Default: OFF
8 to 14 Reserved --- ---
Slave Status 2 (n+13)
Bit Name Manipulated by Unit operation
0 Reserved --- ---
1 Available Mailbox Com-
munication
Unit ON:
Indicates that mailbox communication is available for
the Unit.
OFF:
Indicates that mailbox communication is not available
for the Unit.
Default: OFF
This bit will remain ON while the Unit is in the Pre-Oper-
ational, Safe-Operational or Operational state.
This bit will also remain ON if the IN port link is not
established with another device.
Bit Name Manipulated by Unit operation
Available Mailbox Communication
Input Data Valid
n + 13
IN Port Link Status
OUT Port Link Status
Output Data Valid
14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
15