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4.2 S Controller Interface Buffer Memory Configuration
4
Details of the information that can be checked in the RAS information area are explained
below.
(1) Station status (05D5H: 1 word)
This register indicates DN311 status with bit configuration flags. Each bit is
significant at 1.
Format
Figure 4-11 Station Status Bit Configuration
Table 4-3 on the next page shows examples of station status bit configuration of the
DN311 in different modes.
Table 4-2 Meanings of Station Status Bits
Bit
Name
Meaning
15
DOWN
DN311 is in down mode.
14
Reserved
13
STBY
DN311 is in standby mode.
12
RUN
DN311 is in run mode.
11
Reserved
10
BITS
Transmission is under way in bit strobe mode.
9
POLL
Transmission is under way in polling mode.
8
Reserved
7
Reserved
6
NCOIN
No slave device is registered in the DN311.
5
TXERR
Some of the salve devices registered do not respond.
4
START
DN311 is transmitting.
3
SYNC
DN311 is operating in synchronous mode.
2
BUSOFF
DN311 is in busoff status.
1
DPADR
DN311 detected an duplicate node address when starting transmission.
0
Reserved
F
E
D
C
B
A
9 8 7 6 5 4 3 2 1 0
DOWN STBY
Reserved
POLL
Reserved
TXERR
SYNC
DPADR
Reserved RUN BITS Reserved NCOIN START BUSOFF
Reserved