Mitsubishi MELSEC LJ71C24, User Manual

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12 DEDICATED INSTRUCTIONS
Function
(1) The protocol setting data written to the flash ROM are executed by the module
designated in Un.
The protocol is executed according to the control data stored in the device
designated in (S) and the following devices.
The channel designated in n1 is used.
(2) Protocols are executed consecutively for the number of times designated in n2
(maximum: 8) in one instruction execution.
(3) Simultaneous execution of dedicated instructions
The following table shows the processing when executing another instruction
during execution of the CPRTCL instruction or executing the CPRTCL instruction
during execution of another instruction in the same channel.
Instruction
*1
Availability of
simultaneous
execution
Processing of simultaneous execution
CPRTCL
y The next instruction will be ignored until the active instruction is
completed.
(However, simultaneous execution is available when channels to
be used are not the same.)
PUTE
GETE
SPBUSY
⎯
UINI
y Dedicated instructions simultaneous execution error (7FF0
H
)
occurs in the dedicated instruction attempted later.
: Available : Not available
*1: Since the dedicated instructions shown below use a different communication
protocol from that for the CPRTCL instruction, they are not used in the same
channel.
y ONDEMAND, OUTPUT, PRR, BIDOUT, INPUT, BIDIN, BUFRCVS, CSET
If the dedicated instructions shown above are used in the same channel with the
CPRTCL instruction, the communication protocol setting error (7FF2
H
) occurs.
(Except for the BUFRCVS instruction)