If a direct connection is made, either type can be used.If making a connection via a hub, use a straight cable.

Any data can be sent and received if the socket communication function instructions are used.

Maximum scan time (10 ms) + Response time (10 ms) = Pulse width with which the module recognizes all pulses (20 ms)

Those displayed under COMMENT are common comments, and others are program comments.When there are multiple programs in a

No setting is required.File registers are enabled by default in basic model QCPU.

SD520 stores the current scan time in 1 ms units.

The contents of the program memory, the standard RAM, and latch devices are not erased if the battery replacement is com

Auto refresh setting is for storing the buffer memory data of a MODBUS (R) interface module to specified devices of a CP

After performing online change to the program memory, export the program memory data to ROM format when the CPU can be s

If Latch (1) is set in the device setting of PLC parameter, the contents of file registers are cleared by latch clear op

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FAQ within [ MELSEC-Q Series ]

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Cables connected to the Ethernet port on the universal model QCPU

If a direct connection is made, either type can be used.If making a connection via a hub, use a straight cable. More Details >>
- No：22690
- Release Date：2018/09/03 17:29
Data communications between programmable controllers

Any data can be sent and received if the socket communication function instructions are used. More Details >>
- No：22702
- Release Date：2018/09/03 17:29
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
Device comment

Those displayed under COMMENT are common comments, and others are program comments.When there are multiple programs in a project, a common comment applies to... More Details >>
- No：22540
- Release Date：2018/09/03 17:28
How to set file register setting

No setting is required.File registers are enabled by default in basic model QCPU. More Details >>
- No：22555
- Release Date：2018/09/03 17:29
How to check scan time

SD520 stores the current scan time in 1 ms units. More Details >>
- No：22556
- Release Date：2018/09/03 17:29
Battery replacement for High-Performance model QCPU

The contents of the program memory, the standard RAM, and latch devices are not erased if the battery replacement is completed within three minutes, which is... More Details >>
- No：22568
- Release Date：2018/09/03 17:29
Auto refresh setting in GX Configurator -MB

Auto refresh setting is for storing the buffer memory data of a MODBUS (R) interface module to specified devices of a CPU module and for storing device data ... More Details >>
- No：22573
- Release Date：2018/09/03 17:29
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
Cause of file register reset by latch clear operation in universal model QCPU

If Latch (1) is set in the device setting of PLC parameter, the contents of file registers are cleared by latch clear operation. Set Latch (2) to maintain t... More Details >>
- No：22584
- Release Date：2018/09/03 17:29
- Update：2018/09/20 17:31

71-80 of Total 213

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