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Chapter 8 Communication Functions
8-70
1) No protocol send(DSND)
Available Device Flag
Instruction
M P K L F T C S D
#
D Integer
No. of
step
Error
(F110)
Zero
(F111)
Carry
(F112)
Ch
○
n
○ ○ ○ ○ ○ ○ ○
○ ○ ○
S
○ ○ ○ ○
○ ○
○ ○
SS
○ ○ ○ ○
○ ○
○ ○
9
○
Ch Designated communication channel
n Number of data to sending by bytes
S Device address which is stored communication data
Error
(F110)
Error flag turns on, when designating area is over.
SS
Device address which is displayed communication
status
■ DSND Ch n S SS
(1) Function
• When the execution condition is on, the No protocol communication starts
• ‘n’ represents the number of data to send (unit of byte) and Sending data is stored in device ‘D’
• ‘Ch’ is designated communication channel and Communication status is saved in ‘SS’.
(2) Example program
• When the execution condition P0040 is on, the communication starts with channel 1
• Length of sending data which is stored in D0100 is 10 byte and the communication status is stored in M000.
Length of sent data error bit Done
(3) Error code
Code Error Description
06 Parameter Error Communication parameter setting error
08 Slave Device Busy Slave device is busy
09 Frame Type Error Size of sending byte is out of range
DSND
No protocol send
Designation
Flag