Mitsubishi QD51, User Manual

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MELSEC-Q
2 SYSTEM CONFIGURATION AND USABLE FUNCTIONS
2.5 For Use at MELSECNET/H Remote I/O Station
This section describes the use of the QD51(-R24) on a MELSECNET/H remote I/O
station.
When using the QD51(-R24) with a QCPU, it is not necessary to read this section.
(1) System Configuration
(Example)
MELSECNET/H Remote I/O Net
QCPU
QJ71
LP21
-25
(Remote Master Station) (Remote I/O Station)
(Remote I/O Station)
QD51
(-R24)
QJ72
LP25
-25
QJ72
LP25
-25
(2) Available functions
The functions which can be used when the QD51 (-R24) is installed in a
MELSECNET/H remote I/O station are shown below.
Function Availability
Communications by BASIC program ( 1)
: Can be used. : Cannot be used.
1 Available communications with MELSECNET/H remote I/O stations by
BASIC program are as follows:
Available Function Function
Batch read, batch write
Reading from and writing to device memory.
Random read, test (random write)
Reading from and writing to intelligent function
module buffer memory. Reading from and writing to the specified intelligent
function module's buffer memory.
The device range of a MELSECNET/H remote I/O station which can be accessed by
reading from and writing to the device memory is as follows. (The same range as the
default QCPU settings)
For MELSECNET/H remote I/O station devices and access device ranges, refer to
Section 3.3.1 (3) of the AD51H-BASIC Programming Manual.
Device Name Device Symbol Device Name Device Symbol
Special Relay SM Link Relay B
Special Register SD Data Register D
Input Relay X Link Register W
Output Relay Y Link Special Relay SB
Internal Relay M Link Special Register SW