odot ODOT-S4E2, User Manual

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3.1.4 System diagnostic area
The diagnosis system is divided into two parts. For the first part: The address
0x2000-0x200F is in total of 16 words that is 256 bits as the "slave error indicator area".
The number 1-247 are respectively corresponding to slave 1-247and 248-256 are reserved.
When the error occurs from the station communication, the corresponding bit of the station
address is set to 1. The corresponding error indicator bit will have zero clearing
automatically after the slave is back to normal. Its data encoding format is shown in Table
3.2.
Table 3.2 Slave error indicating area encoding format
Address
0x2000
BIT Bit15 Bit14 Bit13 Bit12 Bit11 Bit10 Bit9 Bit8
Bit
Number
16 15 14 13 12 11 10 9
BIT Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
Bit
Number
8 7 6 5 4 3 2 1
address
0x2001
BIT Bit15 Bit14 Bit13 Bit12 Bit11 Bit10 Bit9 Bit8
Bit
Number
32 31 30 29 28 27 26 25
BIT Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
Bit
Number
24 23 22 21 20 19 18 17
.
.
.
BIT Bit15 Bit14 Bit13 Bit12 Bit11 Bit10 Bit9 Bit8