Dedicated Instructions - Mitsubishi A1SJ61BT11 User Manual

15 FUNCTIONS (FUNCTION VERSION B OR LATER)

15.6 Dedicated Instructions

Table 15.6 List of available dedicated instructions at different stations
Applicable station Instruction
RLPA
RRPA
Master station,
RIRD
local station
RIWT
RIRD
RIWT
RISEND
Intelligent device
RIRCV
station
RIFR
RITO
It can be used with software version J (manufactured in Jan., 1998) or later.
POINT
(1) Execute the dedicated instructions during data link.
If any of them is executed in the offline mode, an error does not occur but the dedicated
instruction is not completed. After changing the offline mode to the online mode, reset the
CPU.
(2) When the dedicated instructions (RIRD, RIWT, RISEND, RIRCV) are used, RY(n+1)E and
RY(n+1)F are used with the dedicated instructions. Therefore, the user must be careful not
to rewrite these signal data.
Transient transmission can be performed to the intelligent device station and local
station using dedicated instructions.
Dedicated instructions also facilitate read/write of data with handshake from/to remote
devices.
The dedicated instructions that can be used from different types of stations are shown
in Table 15.6. Refer to the AnSHCPU/AnACPU/AnUCPU Programming Manual
(Dedicate Instructions) for the detail of each instruction.
Description
Sets the network parameters.
All items which cannot be set by RLPA instructions
are operated by default.
Sets the automatic refresh parameters.
Reads data in the buffer memory of the specified
station.
Reads device data in the CPU of the specified
station.
Wires data into the buffer memory of the specified
station.
Wires data into the CPU device of the specified
station.
Reads contents in the buffer memory of the
specified station.
Writes data into the buffer memory of the specified
station.
Writes data with handshake into the buffer memory
of the specified station.
Reads contents with handshake in the buffer
memory of the specified station.
Reads contents in the automatic refresh buffer of
the specified station.
(Random access buffer can be specified.)
Writes data into the automatic refresh buffer of the
specified station.
(Random access buffer can be specified.)
Availability
Master station
15 - 11
MELSEC-A
( : available, : not available)
Standby master
Local station
station