How to become an Electrical Engineer ?

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How can you increase the performance of Siemens HMI devices?

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Which ports are used by WinCC flexible?

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How do you integrate a WinCC flexible project in STEP 7?

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Repost: Make Images of Your Hard Drive (Cloning your harddisk)

SCADA with Database always use Industrial PC for HMI. How to make backup the PC SCADA? Please read simple Tips and Tricks to make Backup PC. “It’s important for your as Automation Engineer in Industries”

Making images of hard drives is a useful way of having backup copies of all your information, including your entire operative system.

For many years, only a few companies made this kind of programs and they were expensive. But now, there are some free alternatives that make this possible without spending any money. Besides, they are pushing commercial products to lower its prices because of the new competition.

The industry is lead by two applications, Acronis True Image and Norton Ghost. These two are great and include an impressive array of options that many of the free applications don’t have. But most users won’t use them anyway.

DriveImage XML

The first application i want to talk you about is DriveImage XML, from Runtime Software.

Official description:

DriveImage XML is an easy to use and reliable program for imaging and backing up partitions and logical drives.

The program allows you to:

• Backup logical drives and partitions to image files
• Browse these images, view and extract files
• Restore these images to the same or a different drive
• Copy directly from drive to drive
• Schedule automatic backups with Windows Task Scheduler

Macrium Reflect Free

The second one is Macrium Reflect Free.

Official description:

• Create a disk image whilst running Windows using Microsoft Volume Shadow copy Service (VSS).
• Image to Network, USB, FireWire drives and DVD.
• Built in scheduler.
• 32 bit and native 64 bit versions.
• Industry leading compression levels and speed.
• Linux based Rescue CD with Network access and full GUI. Only 6.5MB in size!
• Built in CD/DVD packet writing engine. Supports packet writing to DVD DL media with Windows Vista.
• HTML log files.

No Excuses

There are free tools to make those important backup disk images. It is up to you which one to choose.

See on the Video Below:

With Norton Ghost (How to Clone PC – Make Image Disk).

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Make Images of Your Hard Drive

SCADA with Database always use Industrial PC for HMI. How to make backup the PC SCADA? Please read simple Tips and Tricks to make Backup PC. “It’s important for your as Automation Engineer in Industries”

Making images of hard drives is a useful way of having backup copies of all your information, including your entire operative system.

For many years, only a few companies made this kind of programs and they were expensive. But now, there are some free alternatives that make this possible without spending any money. Besides, they are pushing commercial products to lower its prices because of the new competition.

The industry is lead by two applications, Acronis True Image and Norton Ghost. These two are great and include an impressive array of options that many of the free applications don’t have. But most users won’t use them anyway.

DriveImage XML

The first application i want to talk you about is DriveImage XML, from Runtime Software.

Official description:

DriveImage XML is an easy to use and reliable program for imaging and backing up partitions and logical drives.

The program allows you to:

• Backup logical drives and partitions to image files
• Browse these images, view and extract files
• Restore these images to the same or a different drive
• Copy directly from drive to drive
• Schedule automatic backups with Windows Task Scheduler

Macrium Reflect Free

The second one is Macrium Reflect Free.

Official description:

• Create a disk image whilst running Windows using Microsoft Volume Shadow copy Service (VSS).
• Image to Network, USB, FireWire drives and DVD.
• Built in scheduler.
• 32 bit and native 64 bit versions.
• Industry leading compression levels and speed.
• Linux based Rescue CD with Network access and full GUI. Only 6.5MB in size!
• Built in CD/DVD packet writing engine. Supports packet writing to DVD DL media with Windows Vista.
• HTML log files.

No Excuses

There are free tools to make those important backup disk images. It is up to you which one to choose.

Read Full Post »

FAQ: Battery Backup for EEPROM – OMRON PLC

Question

Is a battery for EEPROM memory backup required when using an EEPROM Memory Cassette with C200HS or C200HX/HG/HE Programmable Controllers?

Answer

 No, the EEPROM Memory Cassette does not require a battery.

———————————————————————

Question

Can a single sensor output be connected to multiple Programmable Controllers Input Units in parallel?

Answer

 The conditions for setting up this type of connection are as follows:

1.The sum of the total input currents of the Input Units must be below the maximum switching capacity of the transistor in the sensor output.

2.The leakage current from the transistor in sensors output may prevent the inputs to the Input Units from turning OFF. You must be sure that the inputs will turn OFF when sensors output turns OFF.
As a condition for this, the input impedance of the Input Unit and the leakage current can be used to calculate the voltage when the sensor output is OFF. You must be sure that this voltage is less than the OFF voltage of the Input Unit.

3.Sensors signal must be long enough to be detected by the Input Units. The ON/OFF signal from Sensors must be longer than the Programmable Controllers’ scan time.

The following formula must be satisfied by the above conditions.

Sum of all leakage currents < Maximum switching capacity of transistor in sensors output

The leakage currents of the pulse output for the transistor in the sensor pulse output when it is turned OFF will not cause the Programmable Controllers input circuit to turn OFF (i.e., satisfies the following condition).
Leakage current of output transistor when OFF x Input impedance of input circuit on Programmable Controllers < Voltage at which Programmable Controllers input turns OFF

The Programmable Controllers must be able to detect the sensor’s ON/OFF signal.
Shorter of ON or OFF signal for sensor/pulse output > Length of one Programmable Controllers scan

———————————————————————

Question

Can a single-phase motor be controlled by a 3G3EV Inverter with a single-phase 100-V input?

Answer

 No, a single-phase motor cannot be used. Doing so will cause a failure.

The Inverter creates a virtual alternating current with high-speed switching.

If the Inverter is connected to a single-phase capacitor-start induction motor, the capacitor will overheat and burn due to repetitive charging and discharging, so do not connect to this kind of motor.

In addition, if the Inverter is connected to a split-phase-start induction motor or repulsion-start induction motor, the motor’s internal centrifugal switch will not operate, and the starting coil may overheat, so do not connect these kinds of motors. Use a three-phase motor.

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What products are recommended as substitutes for the C200H-CPU01 Programmable Controller?

Question

What products are recommended as substitutes for the C200H-CPU01 Programmable Controller?

Answer

Select any of the following: C200HE-CPU11, C200HE-CPU32, or C200HE-CPU42.

Selection Precautions:

1. A Power Supply Unit must be purchased (e.g., the C200HW-PA204).

2. Check the Memory Unit that was used with the C200H-CPU01.

C200HE-CPU11: 3.2 Kwords (built-in RAM)

C200HE-CPU32/42: 7.2 Kwords (built-in RAM)

Points to Check:

C200H-CPU01:
C200H-MR431/MR432/ME431 Memory Unit = 2,878 words
Thus the C200HE-CPU11 is acceptable.
Memory Unit C200H-MR831/MP831/ME831 = 6,974 words
Select from the following: C200HE-CPU32 or C200HE-CPU42 (7.2 K).
C200HE-CPU42: Provides a built-in RS-232C port.

3. Purchase a Backplane, e.g., the C200HW-BC081-V1.

Select from the following: C200HW-BC101-V1, C200HW-BC081-V1, C200HW-BC051, or C200HW-BC031.

4. The C200HE/HG/HX cannot be used if the C200H-ID001/002 Input Unit (no-voltage contacts) is used with C200H-CPU01. Check the configuration and use another Unit.

(There are no substitute models with the same specifications.)

5. Support Software and a Connecting Cable are required. (No interface is required.)

CQM1-CIF01 and XW2Z-S001 (for PC98, half 14-pin RS-232C)
CQM1-CIF02 (for IBM PC/AT)

6. The user program can still be used if there are no changes in the I/O configuration.

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