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Latest FAQ
- When I write parameter to LonWorks module (NP1L-LW1) using support tool for a LonWorks (NP4N-LNDF), what is the required cable?
- When using a communication module (NP1L-RS1/RS2/RS3/RS4/RS), the FB outputs R_STS 'C0' (Hardware error detected) during receiving. In this case, ho...
- I use DeviceNet interface module (NP1L-RD1) under DeviceNet master (NP1L-DN1). How can I specify NP1L-RD1 in the system definition?
- In the communication module (NP1L-RS1/RS2/RS3/RS4/RS5), is it possible to change communication parameter such as fixed length to variable length af...
- With the FL-net module (NP1L-FL1/FL2/FL3), is there any way to confirm that the data sent from the node-A have actually been received by the node-B?
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FAQ within [ Communication (Others) ]
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Can I use both P-link and PE-link in one system?
No, you cannot. Show Detail
- No：1523
- Displayed Date：2023/04/25 19:00
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You don't need a dedicated cable. Since the parameters will be set via the CPU module, you need a loader cable for the PLC and the program loader software. Show Detail
- No：1676
- Displayed Date：2023/04/25 19:00
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Can I use a router for FL-net?
You cannot use a router because FL-net does not support the use of subnet. *Related document: For the notes on using FL-net, refer to 'Appendix 2-8 Differen... Show Detail
- No：1589
- Displayed Date：2023/04/25 19:00
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With a general-purpose communication module, is RS232C completely full duplex?
It is full duplex for both hardware and software (firmware) for anything other than communication by M_RECEIVE and M_SEND on the SX bus, which are FB interna... Show Detail
- No：1413
- Displayed Date：2023/04/25 19:00
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They are retained. Note, however, that they are cleared if the power of the FL-net module is turned off. Show Detail
- No：1405
- Displayed Date：2023/04/25 19:00
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It is the same as the loader mode (mode switch 3) of the general-purpose communication module (Type_ NP1L-RS1/RS2/RS3/RS4/RS5). Show Detail
- No：1379
- Displayed Date：2023/04/25 19:00
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Which optical fiber cable for an SX bus should I choose for outdoor use?
Use an optical fiber cable (Type 2-C-LAP) provided by Sumitomo Electric Industries, Ltd. Show Detail
- No：1315
- Displayed Date：2023/04/25 19:00
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How does the FL-net module (Type_ NP1L-FL1/FL2/FL3) clear the error history recorded in each memory?
Once an error history is generated, it is retained internally within the FL-net module and is cleared when the power is turned off and turned on again or whe... Show Detail
- No：1567
- Displayed Date：2023/04/25 19:00
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NP1L-RS1/RS4/RS5 support RS-485. Can I use them for RS-422 devices?
Yes, you can use NP1L-RS1/RS4/RS5 for RS-422 devices. RS-485 is upper compatible with RS-422. There are two connection types for RS-422 devices: 2-wire conne... Show Detail
- No：1522
- Displayed Date：2023/04/25 19:00
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Common memory 1 and common memory 2 are handled together in terms of timing. However, to maintain the uniqueness of data including those in common memory 1 a... Show Detail
- No：1311
- Displayed Date：2023/04/25 19:00
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