
B-63434EN/02 DESCRIPTION 3.MESSAGE TRANSMISSION
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3.6.2 Transparent message reception
Reception notification
message
Reception confirmation
message
7070
+0 Receive flag
0001h
+0 Completion flag
+2 Transmission source
node number
+2
+3 (Reserved) +3
+4 Transaction code
50000 to 59999
+4 Transaction code
50000 to 59999
+6 Data size +6 Data size
+8 Transparent receive
data
+8 Transmit data buffer
start address
Table 3-13 Transparent Receive Message Interface Items
Interface item Description Direction
Receive flag When a transparent message is received, this flag is set to
0001h after the interface items below are set.
S→U
Transmission
source node
number
Node number of a transmission source that transmitted a
transparent message
S→U
Transaction code !,,,,)!4444 S→U
Data size Size of received transparent data (in words) S→U
Transparent
receive data
Transparent data received S→U
When a transparent message is received, a R_STS code with a
meaning indicated below may be returned to the transparent message
transmission client.
Table 3-14 Meanings of R_STS Codes Returned to the Transparent
Message Transmission Side
R_STS value Description
02 (buffer full) The previously received transparent message is not
processed by the user program.
03 (not initialized) An interface area for receiving a transparent message
is not allocated.
06 (format error) A transparent message actually received is larger than
a receive data area allocated by this interface.
Transparent data actually received consists of an odd
number of bytes.