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4.3 Requests to the DN311
4
4.3.2 Reset request
(1) Function
This request is used to reset the DN311 from the S controller. Receiving a reset
request, the DN311 initializes the module.
This request also can delete the scan list (parameters of the slave devices connected
to the network) stored in the internal non-volatile memory of the DN311.
In normal operation
When a reset request is executed, the DN311 waits for a parameter setting
request (in standby mode). No response will be made to the S controller when a
reset request is completed normally. To confirm normal completion of the reset
request, check the station status (05D5H) that it changes from initialize mode to
standby mode.
In abnormal state
An error response (completion status) is returned to the S controller when the
request is not accepted.
Figure 4-16 Station Status Operation at Reset Request
(2) Diagrammatic representation (Function block)
Input Argument Output Argument
REQ BOOL type
Execution
enabled
DONE BOOL type Completed
CH WORD type Channel No. ERR BOOL type Error
UNIT WORD type Unit No. STATUS WORD type Completion status
SLOT WORD type Slot No. For description of completion status, see
Section 4.5.
CLR_SL WORD type Scan list clear
(Yes: 1, No: 0)
Reset request Reset completion
INZ bit (14 bits)
STBY bit (12 bits) Unfixed
NCOIN bit (6 bits)
(when clearing the scan list) Unfixed
Station status 4000H 2000H/2040H
DN_RESET
CH
REQ
DONE
UNIT
CLR_SL
ERR
SLOT
STATUS
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