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Programmable Controllers MELSEC
FAQ within [ Programmable Controllers MELSEC ]
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RS-485 connection between QJ71C24N and an external device
Short between SDA and RDA and between SDB and RDB, and then connect them to + (Data-A) and - (Data-B) on the external device. More Details >>
- No:22986
- Release Date:2018/09/03 17:31
- Category: Network related products
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The error code "2110" is "SP.UNIT ERROR.". This error may be caused by one of the following factors.(1) The module that has been specified by a FROM/TO instr... More Details >>
- No:22830
- Release Date:2018/09/03 17:30
- Category: MELSEC-L Series
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Yes. As a guide, the processing time is shown below.For the logging condition, refer to figure 1 below. - For 16 devices: 2 ms - For 64 devices: 6 ms More Details >>
- No:22829
- Release Date:2018/09/03 17:30
- Update:2018/09/22 15:33
- Category: MELSEC-L Series
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CPU operation when the time setting failed
When an error occurs, the operation can be stopped or continued according to the "At Error Occurrence" setting.(The default is "Continue".) More Details >>
- No:22828
- Release Date:2018/09/03 17:30
- Category: MELSEC-L Series
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Pulse width with which the QX42 recognizes all pulses
Maximum scan time (10 ms) + Response time (10 ms) = Pulse width with which the module recognizes all pulses (20 ms) More Details >>
- No:22720
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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Detecting the connection between a built-in Ethernet port QCPU and hub
You can check the connection to the hub with bit 10 of the special register SD1288. When bit 10 of the SD1288 is on, the QCPU is in connection with the hub. More Details >>
- No:22712
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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Input derating is the percentage of simultaneous ON points, one of the specifications applied when input modules are used. When QX42 is used in a temperatur... More Details >>
- No:22692
- Release Date:2018/09/03 17:29
- Update:2018/10/03 16:23
- Category: MELSEC-Q Series
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Remedy for the division-related operation error
The operation error occurs when the divisor is 0.Create a program in which a comparison operation instruction or another method executes a division instructi... More Details >>
- No:22691
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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Procedure for developing programs
It is necessary to install a development environment (Tornado or Wind River Workbench) and set parameters using the Setting/monitoring tools for the C Cont... More Details >>
- No:22600
- Release Date:2018/09/03 17:29
- Update:2018/09/21 18:52
- Category: MELSEC-Q Series
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How to change programs in the standard ROM
After performing online change to the program memory, export the program memory data to ROM format when the CPU can be stopped or before turning off the powe... More Details >>
- No:22576
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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