Anybus CompactCom 40 - Page 120

Anybus Module Objects 118 (258)
Command Details: Send
Category
Extended
Details
Command Code 17h
Valid for: Instance
Description
This command sends data on a connected socket. Message segmentation may be used to send up to 1472
bytes (For more information, see Message Segmentation, p. 123).
NON-BLOCKING mode: If there isn’t enough buffer space available in the send buffers, the module will respond with
error code 0006h (EWOULDBLOCK)
BLOCKING mode: If there isn’t enough buffer space available in the send buffers, the module will block until
there is.
• Command Details
To allow larger amount of data (i.e. >255 bytes) to be sent, the command data may be segmented (For
more information, see Message Segmentation, p. 123).
Field Contents Comments
CmdExt[0] (reserved) (set to zero)
CmdExt[1] Segmentation Control (For more information, see Message Segmentation, p.
123)
Data[0...n] Data to send
-
• Response Details
Field Contents Comments
CmdExt[0] (reserved) (ignore)
CmdExt[1]
Data[0] Number of sent bytes (low) Only valid in the last segment
Data[1] Number of sent bytes (high)
Anybus
®
CompactCom
™
40 PROFINET IRT Network Guide SCM-1202-023 EN 1.8