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3 Data Exchange with the CPU Unit
3-10
CJ-series User Defined CAN Unit Operation Manual for NJ-series CPU Unit (W517)
The following device variables for CJ-series Unit are used to reference individual information.
Name of device variables for
CJ-series Unit
Type
R/W
Area
Function
*_EnblComm
BOOL
R
Enabled
Communi-
cation
<Operation specifications>
TRUE:
CAN communications enabled and unit
state is ST5 (communicating).
FALSE:
CAN communications disabled and unit
state is not ST5 (communicating).
Default: FALSE
*_MsgRcv
BOOL
R
CAN Mes-
sage
Received
<Operation specifications>
TRUE:
No new configured CAN message
received since last Unit Cyclic refresh.
FALSE:
New configured CAN message received
since last Unit Cyclic refresh.
Default: FALSE
*_SendOver
BOOL
R
Send
Queue
Overflow
<Operation specifications>
TRUE:
Send queue overflow occurred. Over-
flowed messages will be delayed. Reset
to FALSE when
*_EnblCANComm
is
switched from TRUE
→
FALSE in state
ST5 (communicating).
FALSE:
The send queue has accepted all mes-
sages to be sent.
Default: FALSE
*_RcvOver
BOOL
R
Receive
Queue
Overflow
<Operation specifications>
TRUE:
Receive queue overflow occurred. Some
messages have been discarded. Reset to
FALSE when
*_EnblCANComm
is
switched from FALSE
→
TRUE in state
ST4 (configured).
FALSE:
All messages received were processed.
Default: FALSE
Summary of Contents for CJ1W-CORT21
Page 2: ......
Page 140: ...Appendices A 6 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517...
Page 141: ...Index 1 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517 I Index...
Page 144: ...Index 4 CJ series User Defined CAN Unit Operation Manual for NJ series CPU Unit W517 Index...