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)
(Remote master station) | (Remote I/O station) | |||||
QCPU |
| QJ71 |
| QJ72 | QJ71 |
|
| LP21 |
| LP25 | C24 |
| |
|
|
|
| |||
|
|
|
|
| ||
MELSECNET/H | External device |
| |
Remote I/O network |
|
QJ72
LP25
(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) | |
Transmission | DC code control (including Xon/Xoff control) |
|
|
| |
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 | ||
2 - 8 | 2 - 8 |