FAQ


FAQAbout Products
- FAQ > Controllers > Programmable Controllers MELSEC > MELSEC-Q Series
FAQ
Keyword Search
FAQ within [ MELSEC-Q Series ]
-
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
-
Ethernet system configuration of a redundant system
The following figure shows the basic configuration. When a control system Ethernet module is faulty or disconnected, the system is switched at a disco... More Details >>
- No:22718
- Release Date:2018/09/03 17:29
- Update:2018/09/18 11:45
-
Heat generation of Q61P power supply module
Since the conversion efficiency of the power supply module is approximately 70%, and 30% of the output power is dissipated as heat, the power consumption is ... More Details >>
- No:22529
- Release Date:2018/09/03 17:28
-
It is an embedded RTOS (real-time OS) developed by Wind River, which is proven worldwide as reliable and stable.The version of the operation system installed... More Details >>
- No:22544
- Release Date:2018/09/03 17:28
-
Whether or not totem pole output type encoders are connected
Totem pole output encoders cannot be connected to QD62.The following types of encoders can be connected.- Open collector output type encoders- CMOS level vol... More Details >>
- No:22641
- Release Date:2018/09/03 17:29
-
The number of tasks that can be created depends on free space of the work RAM. Execute the following command with shell to check the free space of the work R... More Details >>
- No:22716
- Release Date:2018/09/03 17:29
-
Corrective action when the program size exceeds the capacity
If comments and symbolic information are stored in the program memory, write them in the standard ROM. More Details >>
- No:22560
- Release Date:2018/09/03 17:29
-
Behavior of sequence program in event of momentary power failure in QCPU
(1) When a momentary power failure occurs for a period not longer than the allowable momentary power failure time When the momentary power failure occurs, t... More Details >>
- No:22587
- Release Date:2018/09/03 17:29
- Update:2018/09/20 17:41
-
Boot operation from the standard ROM in the universal model QCPU
The universal model QCPU modules have their standard ROM but boot operation from the standard ROM is impossible. Boot the module from a memory card. More Details >>
- No:22602
- Release Date:2018/09/03 17:29
- Update:2018/09/20 18:01
-
Battery life in the universal model QCPU
It depends on the model of the CPU module, the amount of battery consumption, and the power-on time ratio. Example) For Q06UDHCPU with power-on time ratio... More Details >>
- No:22633
- Release Date:2018/09/03 17:29
- Update:2018/09/21 11:28
21-30 of Total 213