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MELSEC-Q
2 SYSTEM CONFIGURATION AND AVAILABLE FUNCTIONS
2.5 For Use at MELSECNET/H Remote I/O Station
This section describes the use of the Q series C24 at a MELSECNET/H remote I/O
station.
It is not necessary to read this section if the Q series C24 is used with the QCPU.
(1) System configuration
(Example)
MELSECNET/H
Remote I/O network
QCPU
QJ71
LP21
-25
(Remote master station) (Remote I/O station)
External device
QJ71
C24
QJ72
LP25
-25
QJ72
LP25
-25
(Remote I/O station)
(2) Available functions
The following table indicates the functions that can be used when the Q series
C24 is mounted on a MELSECNET/H remote I/O station.
Function Availability
Communications using the MC protocol
(
1
)
PLC CPU monitoring (PLC CPU monitoring function)
(
2
)
Communications using non procedure protocol
Data reception by interrupt program
PLC CPU monitoring (PLC CPU monitoring function)
(
2
)
Communications using the bidirectional protocol
Data reception by interrupt program
Communications using dedicated instructions
(
3
)
Communications via public line, etc. (modem function)
Remote password check
(
4
)
DC code control (including Xon/Xoff control)
Transmission
Control
DTR/DSR (ER/DR) control
Communications protocol switching
Independent/linked operation of each interface
Initial setting and monitoring/testing of setting values by the utility package (See (4))
Connecting the GX Developer
: Available : Not available