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Programmable Controllers MELSEC
FAQ within [ Programmable Controllers MELSEC ]
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Use of an A-compatible 1E frame for the built-in Ethernet port of LCPU
The built-in Ethernet port in the L series is compatible only with a QnA-compatible 3E frame of the MC protocol. An A-compatible 1E frame is not supported. More Details >>
- No:22731
- Release Date:2018/09/03 17:29
- Category: MELSEC-L Series
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Connection status detection between a hub and the built-in Ethernet port of LCPU
The bit 10 of the special register SD1288 provides the connection status to a hub. When the bit 10 of SD1288 is ON, a hub is connected. More Details >>
- No:22759
- Release Date:2018/09/03 17:30
- Category: MELSEC-L Series
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Cable length to connect to built-in Ethernet port in LCPU
The maximum length between a hub and a node is 100 m. The max. length connectable to a hub is 200m.When repeater hubs are used in cascade connection, the max... More Details >>
- No:22781
- Release Date:2018/09/03 17:30
- Category: MELSEC-L Series
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SD1284 of LCPU with built-in Ethernet port
The bits 0 to F of the special register SD1284 (Open request signal) correspond to the connection numbers 1 to 16. When the open request is sent, the corresp... More Details >>
- No:22784
- Release Date:2018/09/03 17:30
- Category: MELSEC-L Series
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Copying statements and notes of GX Developer
Notes and statements are batch managed in the program file. It is impossible to copy notes and statements alone. More Details >>
- No:22853
- Release Date:2018/09/03 17:30
- Category: Engineering Software
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Difference between QJ61BT11 and QJ61BT11N
QJ61BT11N supports Version 2 (expanded cyclic setting), the setting for refreshing/forced clearing a slave station data when the switch on a programmable con... More Details >>
- No:22964
- Release Date:2018/09/03 17:31
- Update:2018/09/25 13:16
- Category: Network related products
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Terminating resistors for RS-422 communication of QJ71C24N
The resistance value is 330 ohm, 1/4 W. More Details >>
- No:22965
- Release Date:2018/09/03 17:31
- Update:2018/10/03 15:33
- Category: Network related products
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Link register assignments in MELSECNET/10 networks
For any type of MELSECNET network (II, /10, and H), B and W devices with the same number cannot be used for multiple stations as write areas. Following th... More Details >>
- No:22971
- Release Date:2018/09/03 17:31
- Update:2018/09/25 13:24
- Category: Network related products
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Difference between the CC-Link IE Controller Network and a MELSECNET/H network
The CC-Link IE Controller Network is an improved system that has a higher processing speed and a larger data capacity than the MELSECNET/H network system (PL... More Details >>
- No:22979
- Release Date:2018/09/03 17:31
- Update:2018/09/25 17:17
- Category: Network related products
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CC-Link master module settings
If each master module controls their own CC-Link networks, all master modules can be set as station 0 even though they are controlled by the same CPU. More Details >>
- No:23008
- Release Date:2018/09/03 17:31
- Category: Network related products
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