Filter
Top Products
177
Receiving Explicit Messages Section 6-5
No of Read Words (command): The number of words of read data is speci-
fied in 1-byte (2-digit) hexadecimal. The range is 01 to 64 Hex (1 to 100 deci-
mal).
No. of bytes received (response): The number of bytes received from the
destination node address (remote node) is returned in hexadecimal.
Destination node address (response): The node address of the CS/CJ-
series DeviceNet Unit that returned the response is returned in hexadecimal.
Read data (response): The specified area, word, and byte data is returned in
order from word L (low byte: bits 0 to 7) to word H (high byte: bits 8 to 15).
Important Points The actual address L, address H, and number of write data bytes that can be
specified depends on the CPU Unit of the CS/CJ-series DeviceNet Unit and
the Memory Area. Do not exceed the boundary of the data areas for the PC
you are using.
Byte Data Write (Service Code: 1E Hex)
Byte Data Write writes data to I/O memory area in CPU Units with CS/CJ-
series DeviceNet Units mounted. The write word data is in byte units. The
command block is specified from high to low bytes, as shown in the following
diagram.
Command Block
Response Block
Parameters Destination node address (command): The node address of the CS/CJ-
series DeviceNet Unit to which to write the data, specified in 1-byte (2 digit)
hexadecimal.
Service code (command, response): IE Hex is specified for commands. For
responses, the highest bit will turn ON and 9E Hex will be returned.
Class ID (command): Always 002F Hex.
Destination node address
Service Code
Class ID
Instance ID
Address L
Address H
Write data (200 bytes max.)
Word data L
Word data H
Word data L
Word data H
No. of bytes
received
Destination
node address
Service Code