Common memory 1 and common memory 2 are handled together in terms of timing. However, to maintain the uniqueness of data

One possible cause is that common FB _C_COM is not registered with the library. For communication-related expansion F

It is the same as the loader mode (mode switch 3) of the general-purpose communication module (Type_ NP1L-RS1/RS2/RS3/RS

You don't need a dedicated cable. Since the parameters will be set via the CPU module, you need a loader cable for the

Refreshing data in the link data area in FL-net takes place when data is received from another station. The local statio

The number of M_OPEN FBs that can be opened simultaneously is limited to 56. The number of FBs that can be simultaneousl

Yes, a CPU is necessary. In the case of a system with no CPU, the input status LED does not work even if signals are ext

They are retained. Note, however, that they are cleared if the power of the FL-net module is turned off.

When the P-link module is specified as 'unimplemented' and no P-link module exists in the system, attempting to access t

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GLOBAL > PLC > SPH > Communication (Others)

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) ]

31-40 of Total 53

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With the common memory of FL-net, I set word data with common memory 2 and bit data with common memory 1. Please describe the timing of transmissio...

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
With D300win, I used a non-procedural FB (_C_free) in a program for compilation and an error occurred. What is the cause of this problem?

One possible cause is that common FB _C_COM is not registered with the library. For communication-related expansion FBs including _C_FREE, register common... Show Detail
- No：1329
- Displayed Date：2023/04/25 19:00
- Updated DTM：2023/06/13 15:32
What is the communication protocol for the loader port of the CPU module of the MICREX-SX SPH Series?

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
When I write parameter to LonWorks module (NP1L-LW1) using support tool for a LonWorks (NP4N-LNDF), what is the required cable?

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
Which FL-net unit is responsible for refreshing data of the common memory with FL-net modules (Type_ NP1L-FL1/FL2/FL3)? Where is the master station?

Refreshing data in the link data area in FL-net takes place when data is received from another station. The local station data is refreshed by sending the la... Show Detail
- No：1424
- Displayed Date：2023/04/25 19:00
Is there any limitation on the number of M_OPENs to be executed simultaneously? If there is a limitation, what is the maximum number?

The number of M_OPEN FBs that can be opened simultaneously is limited to 56. The number of FBs that can be simultaneously opened for each module depends on t... Show Detail
- No：1435
- Displayed Date：2023/04/25 19:00
Is a CPU necessary to check I/O? Input signals to the input terminals of an input module are turned ON, however, the input status LED remains OFF.

Yes, a CPU is necessary. In the case of a system with no CPU, the input status LED does not work even if signals are externally input into the input module. Show Detail
- No：1537
- Displayed Date：2023/04/25 19:00
When the communication cable is disconnected with an FL-net module (Type_ NP1L-FL1/FL2/FL3), are the FL-net common memory data retained? Or are the...

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
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
In an SPH system, I specified the P-link module as 'unimplemented' and the program execution time was extended. Why?

When the P-link module is specified as 'unimplemented' and no P-link module exists in the system, attempting to access the P-link memory using a contact, coi... Show Detail
- No：1355
- Displayed Date：2023/04/25 19:00

31-40 of Total 53

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