Omron DeviceNet CV Series Operation Manual page 262

C200H I/O Link Units
BYTE DATA WRITE
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Address L, Address H (Command)
The address in hexadecimal of the first word of data to be read.
Address L: Rightmost 2 digits of the address in 4-digit hexadecimal.
Address H: Leftmost 2 digits of the address in 4-digit hexadecimal.
When specifying a Holding Area word (H100 or H102 to H127) in a CS1H/G
PLC, specify the first word in hexadecimal with 0000 Hex for H100 or 0002 to
001B Hex for H102 to H127.
No. of Read Bytes (Command)
The number of bytes of read data, in single-byte (2-digit) hexadecimal. The
specified range is 01 to C8 Hex (1 to 200 in decimal).
No. of Received Bytes (Response)
The number of bytes received from the source node address is returned in
hexadecimal.
Source Node Address (Response)
The node address of the C200H I/O Link Unit that returned the response is
returned in hexadecimal.
Read Data (Response)
The specified data (area, words, and number of bytes) is returned from word
H (leftmost byte: bits 08 to 15) to word L (rightmost byte: bits 00 to 07). If an
odd number of read bytes have been specified, the last byte of data moves
into word H.
Precautions
Actual addresses for Address H and Address L and actual number of bytes to
be read differ according to the model of PLC to which the C200H I/O Link Unit
is mounted and the memory area. Be sure to specify bytes within the data
area range.
BYTE DATA WRITE will write data to any area in the CPU Unit of the PLC to
which the C200H I/O Link Unit is mounted. Write data is specified from the
leftmost byte to the rightmost byte.
Command Block
Class ID
Service code
Destination node address
Instance ID
Response Block
No. of received bytes
Word data H
Address L
Word data L
Address H
Write data (Maximum 200 bytes)
Service code
Source node address
Section 6-1
Word data H
Word data L
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