Pepperl+Fuchs IC-KP-B17-AIDA1 - Page 37

IC-KP-B17-AIDA1
Commands
2014-02
37
Third step
A read holding registers - MODBUS command must be executed. The registers contain the
response to the executed identification command enhanced read.
Address
(0-based)
Register division
Byte number of the
identification
telegram
Use Contents Meaning
2000d High byte Reserved 00h -
Low byte Utilization register 06h 6% of the FIFO
memory is utilized
2001d High byte
Byte 0
Length of the
identification
telegram from this byte
onwards
00h -
Low byte
Byte 1
Length of the
identification
telegram
06h 6 bytes long
2002d High byte
Byte 2
Command code 04h change tag
command
Low byte
Byte 3
Reserved/Channel/
To gg le b it
04h 4 corresponds to
channel 2. Channel
number shifted 1 bit to
the left.
2003d High byte
Byte 4
Statu s 00h 00h = command
executed (meaning of
the identification
statuses see chapter
10.1)
Low byte
Byte 5
Reply counter 01h Increases by 1 after
each additional
response.
2004d -
2011d
High byte - 00h -
Low byte - 00h -
Table 7.11 Responses to the executed identification command change tag
Address
(0-based)
Register division
Byte number of the
identification
telegram
Use Contents Meaning
2000d High byte Reserved 00h -
Low byte Utilization register 03h 3% of the FIFO
memory is utilized
2001d High byte
Byte 0
Length of the
identification
telegram from this byte
onwards
00h -
Low byte
Byte 1
Length of the
identification
telegram
06h 6 bytes long