Mitsubishi Melsec-L Series User Manual page 235

Function
Availability of
1
Instruction
simultaneous execution
OUTPUT
PRR
INPUT
CSET (the right column)
PUTE
GETE
BUFRCVS
SPBUSY
UINI
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1 For error codes relating to abnormal completion, refer to Chapter 15.
2 When setting "Word/byte units designation" by GX Works2, set the number of bytes
when bytes are designated and set the number of words when words are
designated.
3 The settings are done by either of the following:
• User : Data set by the user before executing the INPUT instructions.
• System : The CPU module stores the execution result of the INPUT instructions.
(1) The function stores in the device designated in (D1) and succeeding devices the
data received with the nonprocedural protocol of the module designated in Un,
according to the control data of the device designated in (S) and succeeding
devices.
(2) When the number of data actually received exceeds the allowable receive data
count specified by (S)+3, only the receive data within the allowable receive data
count is stored, and the remaining receive data is discarded. (The dedicated
instructions are completed normally.)
In this case, the allowable receive data count is stored in the receive data count
((S)+2).
(3) Simultaneous execution of dedicated instructions
The following table shows the handling for when executing another instruction
during execution of the INPUT instruction or executing the INPUT instruction
during execution of another instruction in the same channel.
• The next instruction will be ignored until the active instruction has been completed.
(However, simultaneous execution is available when channels to be used are not the same.)
[When instructions are executed in order of INPUT
• Dedicated instructions simultaneous execution error (7FF0
(However, simultaneous execution is available when channels to be used are not the same.)
[When instructions are executed in order of CSET
• Simultaneous execution is available.
INPUT instruction and BUFRCVS instruction cannot be used at the same time.
(However, simultaneous execution is available when channels to be used are not the same.)
• Dedicated instructions simultaneous execution error (7FF0
instruction attempted later.
1 Since the dedicated instructions shown below use a different
communication protocol from that for the INPUT instruction, they are not
used in the same channel.
• ONDEMAND, BIDOUT, BIDIN, CPRTCL
If the dedicated instructions shown above are used in the same channel
with the INPUT instruction, the communication protocol setting error
(7FF2 ) occurs.
H
Handling of simultaneous execution
⎯
CSET]
INPUT]
⎯
⎯
12 DEDICATED INSTRUCTIONS
) occurs in the CSET instruction.
H
) occurs in the dedicated
H
: Available : Not available
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