1. The indicator light at the output of the PLC is on, indicating that the DO point of the PLC has been closed; 、
2. The DO point of PLC is equivalent to a dry contact switch, imagine that an on/off switch on a line is closed, if you measure the voltage on both sides of this switch, there will be no voltage, thinking that the switch itself is not a load, and there is no resistance of course there is no voltage division;
3. In the case that the indicator light at the output end of the PLC is not lit, you measure the voltage at the output end of the PLC, and imagine that in the circuit of a circuit, the DO point of the PLC is equivalent to a switch, at this time the switch is disconnected, the control circuit does not form a loop, and you measure the output end is equivalent to measuring the voltage of the entire load circuit, that is, the general 24VDC;
4. Generally, without disassembling the PLC line, the method of measuring the voltage is used to judge whether there is an output at the DO point of the PLC, if there is an output, the voltage is 0VDC, and if there is no output, the voltage is 24VDC.
Solution(s):
1. Check the output relay of the external circuit and PLC
2. Change the relay
3. Connect the counterpart power supply
4. Replace the output point
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Maintenance method of Omron PLC
1. Maintenance procedures, regular testing and adjustment of equipment
(1) Check the connection of the terminal blocks in the PLC cabinet every six months or quarters, and reconnect the loose places in time if they are found;
(2) Re-measure the working voltage of the power supply to the main engine in the cabinet every month ...
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The Omron mobile robot can move a payload of up to 250 kg
Omron's LD-250 can be used to transport large automotive parts, such as gearboxes and large quantities of packaging materials, which are normally handled by human workers using trolleys.
The robot is made of a sturdy metal enclosure that can withstand unexpected external shocks and requirements for more ...
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Omron CP1 series PLC interrupt classification
1. I/O direct interrupt, which is the change of interrupt input from the built-in input unit on the CPU rack (0→1; 1→0).
2. Counting interrupt, the built-in input pulse of the CPU unit of the PLC is counted, and the interrupt is executed when the count reaches the set value.
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The application of Omron temperature uniformity technology in SEMI homogenizing developer
Process introduction
The gluing developer is a very important equipment for the lithography process section of chip making, which is used to realize the ultra-thin film of photoresist. It is divided into two steps: 1. Gluing process: the photoresist is dropped onto the surface of the wafer through the glue head, and the vacuum suction cup sucks the wafer and rotates at high speed for homogenization.
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Omron brought a variety of new blood pressure monitors to the Expo
Hypertension is the main risk factor for cardiovascular and cerebrovascular diseases, and is known as the "invisible killer of human health". The Lancet study shows that the number of hypertensive adults aged 30-79 has increased from 650 million to 1.28 billion in the past 30 years. In China, hypertension is also a cardiovascular disease.
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Omron Medical Electronic Blood Pressure Monitor HEM-7071 Features:
1. Intelligent upper arm sphygmomanometer for more accurate measurement
2. Enlarge the screen, completely from the user's point of view
3. It can record 84 measurement results for 2 people respectively, and the total storage value is 168 times
4. The new "Fit Cuff" armband, which is easier to roll up, is adopted.
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What are some common failures of Omron?
Common troubleshooting methods for Omron are as follows:
(1) Failure of peripheral circuit components
This kind of failure is more common in PLC maintenance, and it is generally a frequent occurrence in failures after a certain period of work. In the PLC control loop, if there is a component damage fault, the PLC control system ...
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How to choose Omron relays?
1. Select the rated working current of the electromagnetic relay coil: For the DC electromagnetic relay driven by transistors or integrated circuits, the rated working current of the coil (generally 2 times the suction current) should be within the output current range of the driving circuit.
2. Select electromagnetic relay contact ...
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Omron electronic sphygmomanometer has added a new member - large-screen series of electronic sphygmomanometers
As the world's top electronic sphygmomanometer manufacturer, Omron electronic sphygmomanometer has been sold to 138 countries around the world and is still a world-renowned electronic sphygmomanometer brand.
With nearly 50 years of experience in the field of blood pressure management, Omron has always been committed to serving the health of Chinese residents.
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Omron | Sub-micron ultra-high-speed microfabrication
problem
Adapt to high-end manufacturing
With the diversification of consumer needs and the shortening of product cycles, various digital devices such as mobile devices are pursuing high performance, small size, and thin form factors, and the manufacturing process of semiconductor packaging and electronic components has also undergone tremendous development.
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The solution to the E4 fault code on the Omron electronic blood pressure monitor
The E4 fault code usually appears on the display of the blood pressure monitor, indicating that the blood pressure monitor is poorly connected to the cuff or that the cuff is falling off. This failure can lead to inaccurate measurement results or even inability to complete the measurement.
Solution(s):
1. Check that the cuff is worn correctly and whether it is loose...
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How can Omron micro switches meet the market demand for smart locks?
Nowadays, the smart lock market has a wide variety of names, and it can't help but give people a sense of "random flowers gradually charming eyes". So, how to choose a cost-effective smart lock? In fact, in smart locks, micro switches can be said to occupy an important position. Microswitches ...
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The solution to the problem of Omron switches only turning on the green light
For the problem that the Omron photoelectric switch only lights green, it may be because a component on the circuit board is faulty or damaged, or because of the poor connection of a component on the circuit board.
So, to deal with this, the first thing to do is to see if the components on the board are ...
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Omron PLC - PLC common fault maintenance and handling methods
1. The CPU is abnormal
When an abnormal CPU alarm, check all devices connected to the internal bus of the CPU unit. The specific method is to replace the units that may cause failures in turn, find out the faulty units, and deal with them accordingly.
2. The memory is abnormal
When the memory is abnormal ...
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Omron PLC online modifies the procedure steps
1. Plug the data cable or network cable into the PLC socket and connect one end to the computer (Ethernet needs to set the computer IP and the IP of the PLC CPU to be in the same network segment)
2. Download the latest program from the PLC, or open the backup program, online program
3. Find the place in the program that needs to be modified.
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Common problems and solutions of Omron PLC
1. Omron PLC cannot be connected to the computer
There are two reasons why the PLC and the computer cannot be connected: hardware and software.
The hardware reasons are: the interface type does not match (such as USB, RS232, RS422, RS485, CAN, etc., both sides should be the same.) If you want to use the corresponding converter if you want to), ...
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Omron Relays – How relays work
1. Rated working voltage.
The voltage required by the coil for the relay to operate normally.
Depending on the model of the relay, it can be either AC voltage or DC voltage.
2. DC resistance.
The DC resistance of the coil in the relay can be used with a multimeter ...
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Omron announces the opening of its California Robotics Headquarters
March 12, 2020 - Omron Corporation announces the opening of its Robotics and Safety Automation business headquarters in Pleasanton, California. The company has invested $10 million in its 128,000-square-foot facility to design, develop, test and manufacture robots and safe self-propelled robots.
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How are Omron switch relays wired?
One. Before connecting, determine the voltage required for the proximity switch, and in the case of a 3-wire system, determine whether it is PP type or P type. The proximity switch is divided into 2-wire, 3-wire and 4-wire systems.
Two. Wire proximity switches are connected in series when connected to relays. i.e. the relay is connected to the proximity switch to give it ...
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The division of the storage area of Omron PLC
1. I/O relay area: there are 30 channels in total, and the address is 000-029. An idle relay or channel can be used as an intermediate relay. The rack slot number is from 007CH to 001CH from the left of the CPU unit.
The I/O address number is represented by 5 digits: 1, single digit, ten digits indicate the relay ...
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