BIS V-6108 PROFINET
Processor Unit
46
english
Command Identifier B2
hex
: Write Constant Value to Data Carrier with 24-bit Addresses
When assigning addresses to data carriers with expanded memory, the start address and
number of bytes can be specified as 24-bit values. Information about executing the command as
well as about return values are drawn from the 12
hex
command (See
“Command designator
12
hex
: Initialize CRC_16 data check”
).
Subaddress
Meaning
Description of Function
00
hex
1st Bit Header
01
hex
Command Identifier 32
hex
: Write a constant value to the data carrier.
02
hex
Start address
(low byte)
Start address to be written from.
03
hex
Start address
(middle byte)
Start address to be written from.
04
hex
Start address
(high byte)
Start address to be written from.
05
hex
Number of bytes
(low byte)
Number of bytes to be written starting from the start
address.
06
hex
Number of bytes
(middle byte)
Number of bytes to be written starting from the start
address.
07
hex
Number of bytes
(high byte)
Number of bytes to be written starting from the start
address.
…
None
No meaning
Last byte
2nd Bit Header
Valid data is present if the 1st and 2nd bit strings
match.
Structure of the
commands for
read/write heads
7
Device Functions