
1.DeviceNet FUNCTIONS OPERATION B-63404EN/03
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Assigning status information
Assign the status information. This information is used for verifying
the communications status on the PMC.
Set to parameters the address and size of the R area in which the
status information data is to be assigned.
When the Devicenet Slave Board (A20B-8100-0490) or Slave Board A(A20B-8100-0491)is used
Table 1.3(d) shows the relationship between the STATUS SIZE
setting values and the status information data to be assigned.
Table 1.3 (d): Relationship between STATUS SIZE setting values and
STATUS information
Setting
Value
Item Description
1 STATUS information This 1-byte data notifies the PMC of the
communications status.
00h : Disables communications.
01h : Enables communications. (normal
communications status)
03h : Communications error has
occurred.
For details, check the
COMMUNICATION STATUS and
status of the master device.
82h : Illegal MAC-ID
84h : Duplicate MAC-ID
8Eh : Bus error has occurred.
8?h : An error other than the above
occurred at start of
communications.
2 COMMUNICATION
STATUS:
IDLE/ACTIVE
information
This 1-byte data notifies the PMC of the
state of Group 2 Master/Slave
Connection Set of the DeviceNet.
00h: IDLE state
01h: ACTIVE state
3 COMMUNICATION
STATUS: CAN BUS
STATUS1 information
This 1-byte data notifies the PMC of
CAN BUS STATUS1 information.
#7 #6 #5 #4 #3 #2 #1 #0
[ML] [RO] [TO] [TA] [A] [BO] [BW] [OL]
For details, refer to the CAN BUS
STATUS1 information described above.
4 COMMUNICATION
STATUS: CAN BUS
STATUS2 information
This 1-byte data notifies the PMC of
CAN BUS STATUS2 information.
#7 #6 #5 #4 #3 #2 #1 #0
[SA] [05] [02] [01] [--] [--] [BP] [ER]
For details, refer to the CAN BUS
STATUS1 information described above.