I remember a great man once said: The same mistake cannot be made a second time. But Xiao Zhang made a second mistake, especially in the technical field of mechanical and electrical PLC equipment, and the cost of making a mistake was fatal. I didn't expect the pit 10 years ago to appear again, and what I didn't expect was that Xiao Zhang fell into the pit again. Is it that he doesn't have a long memory and can't be saved? Or is it difficult to cross the pit this time, and it is impossible to guard against it? What price did Xiao Zhang pay? Let's take a closer look at what is going on?

Xiao Zhang was unemployed 2 years ago and did not have any income, but he wanted to use this time to start his own business and do something he didn't have time to do before and still liked to do (still in the technical field of mechanical and electrical PLC equipment), but in the early days of entrepreneurship, there was no income for a long time, and the economy was very tight, and at this moment it was not called life but life. Under such circumstances, he suddenly came to a private job, he was very moved by the virtue of God's good life, and he had to seize this opportunity no matter what, and it was still a mechanical and electrical PLC equipment that he could handle.

The introducer is a friend I have known for a long time, thank you very much. Mechanical and electrical PLC programming happens to be Xiao Zhang's college major. The job content is to go to the site to debug the PLC program of mechanical and electrical equipment. Briefly introduce the equipment: the control system combines PLC program and CNC machine tool CNC G code, belongs to Bechhoff (Beckhoff system), the software TWINCAT in the field industrial computer is their conversion platform, CNC G code can be written on this, converted into PLC recognizable code and directly downloaded to PLC equipment, and then output to control the on-site CNC machine tool and manipulator by PLC equipment. They were all contacted by Xiao Zhang before.

The introducer also arranged for a veteran employee (Engineer Zhen- pseudonym) to go to the site to help familiarize himself for 3 days, and the next 20 days or so were completed by Xiao Zhang himself. The basic function of the device is the customer's needs, just like a new type of car, if there is no manual and no one has introduced it, no one can assemble and debug it The equipment taken over by Xiao Zhang has no manual because it has not yet been accepted, so it can only rely on people who are familiar with the functions to introduce the basic functions on the spot. If Xiao Zhang alone looks at the physical hardware equipment on the spot, it is not complete. In particular, the annotations of PLC programs and CNC G code segments are incomplete, and it is not possible to rely on them to be familiar with the equipment, and a device has tens of thousands of parts of all sizes. Although Xiao Zhang and the developer communicated remotely online, because the on-site noise, time, and methods were not as reliable as the text of the manual, Xiao Zhang also had a rough understanding. The customer requires tight time and heavy tasks, and urgently needs someone to act as a bridge to help implement the basic functional operations on the spot. So in this case, the formation workers were transferred to the scene again to play this role.

In the eyes of customers and workers, he is a regular employee, while Xiao Zhang is a "private" temporary worker, and he may not cooperate again after this project is over. There is no need to know so much about electromechanical equipment, or even just know the G- code and numbers. And then the breakdown that appeared later was far from it. The arranged worker had also been to the scene once before, because the customer thought he was not competent for the job, so he was transferred, and because of the lack of manpower, he had to be transferred again to help Xiao Zhang familiarize himself, because he still knew the basic functions of the equipment. This is enough for Xiao Zhang, and the rest can play his basic skills. This arrangement is already good if nothing else. Xiao Zhang is also full of confidence, he will definitely be able to complete this task, and he will change to a new mobile phone after getting the reward.

But the result was unexpected by Xiao Zhang, I thought that as the introducer said, the original PLC program had been designed, and it had been input into the industrial computer of the equipment through the computer, and only needed to go to the site for simple G-code debugging and PLC debugging. Just make some simple changes on the original basis. In terms of debugging PLC programs and G-code technology, Xiao Zhang is fully competent. But the result was still not very ideal. The whole thing. I feel like don't mess it up. The reason for the smashing. It's not technical at all.

The system of the equipment is Bechhoff's system. The advantage of this system is that it can be used in combination with the CNC G code of the CNC machine, so that they can give full play to their respective strengths. PLC program and CNC G code are now combined with the software TwinCAT, after the CNC G code is written, it is converted into PLC executable input instructions through this software and passed to the PLC hardware output for execution, and the PLC program code is operated by another separate software (can be operated in the industrial computer in a remote desktop way, or it can be designed and written in the local computer and downloaded directly to the PLC hardware, generally downloaded by the remote desktop of the link to the industrial computer), and downloaded to the PC hardware after writing and designing.

Help Xiao Zhang's colleagues who are familiar with the functions of the device:When Xiao Zhang and Engineer Zhen first met, he felt that he was a rough person, who had never gone to college, and took the kind of knowledge that was easily found on the Internet as a treasure, and what was even worse was that he was unwilling to share and his heart was not kind. Xiao Zhang was the first to arrive at the scene. The array workers who were arranged to help introduce the basic functional attributes of PLC electromechanical equipment came to the scene and planned to withdraw after the introduction. It was expected to be simple, but things changed complicatedly on the spot.

The colleagues who arranged it were very conservative, and they were unwilling to introduce even the most basic functions of the equipment. That colleague is still an old employee who has been in the company for 8 years.

Before Xiao Zhang took over the job, one of their colleagues left for various reasons. Listen to the on-site customers say that it is for salary and other reasons. You left unhappily. It is said that the reason for resignation is also the reason for the illness of the body, family members, etc. There is a plot here, that is, the on-site customer and the old colleague who has been working for 9 years complain about the departure of this colleague. So when they saw Xiao Zhang coming to debug this electromechanical PLC equipment instead of that colleague, they had an imperceptible and subconscious feeling of resistance in their hearts. Don't underestimate this resistance to the subconscious, the subconscious mind will cause you trouble in every detail, the kind of trouble that is not careful.

Conflicts within customers:

The person in charge of the customer on site is a mechanical engineer - Master Liu, who is also the kind of old fritters in the workplace who likes to do things and have a little tricks. Although the thin hair on the top of the head can be counted, it still stubbornly retains the expert's hairstyle. On the first morning, he asked Xiao Zhang to take a taxi alone, to the same factory, and he and two other fitters shared a car. There was no explanation, which made Xiao Zhang feel a little abnormal. After arriving at the scene, he said that Xiao Zhang was new to the entrance and had to go through the formalities through another door. He told Xiao Zhang that he would contact his colleague Ligong to report (an electrical engineer), the contract was signed by him, he was not responsible, if he was responsible, he would show his own attitude towards Xiao Zhang, Xiao Zhang half-jokingly said: "Your current attitude is enough, it's good." They are in the system (a state-owned enterprise), and the two fitters also work slowly, which is the kind of person who wastes time to earn the company's business trip subsidy. The two fitters told Xiao Zhang: There have been two engineers before Xiao Zhang, but they can't do it, and they are gone (in fact, they were taken away by their use of means, and the two fitters are also the kind who don't think it's a big deal to watch the excitement, which also reflects the important role of their project, and also wants to put pressure on their colleagues Li Gong, want to toss Li Gong to come to the scene, and use means to suppress Li Gong on the spot, Master Liu is very good at using means on the spot, and he is angry on the spot, Because Ligong also got a lot of benefits when signing the contract. Master Liu and the two fitters were very uncomfortable).

After inviting Master Liu to eat a few times, the distance was obviously closer, and he introduced the personnel situation of the project and his dissatisfaction to Xiao Zhang in detail. He clearly expressed his dissatisfaction with the person who engaged in electrical appliances within their company. said their relationship was delicate. said that this project was a contract signed by the person engaged in electricity and Xiao Zhang, a friend. During the on-site commissioning, the electrical engineer did not look at all. In the process, he threw a lot of anger on Xiao Zhang. This information was learned by Xiao Zhang when he left the scene and communicated with the electrical engineer. He also directly pointed out to Xiao Zhang's analysis. Ligong asked Xiao Zhang to calm down, all his words and deeds were not directed at Xiao Zhang, but against him. Their internal contradictions. It's not because this electrical engineer didn't come to the scene, Xiao Zhang thought that if this beautiful worker arrived at the scene, then this mechanical worker would have other reasons and reasons. Xiao Zhang thinks the most fundamental problem is that there are some other things between them. In terms of interests, there may be some estrangements, deep-seated estrangements. On the other hand, for example, the project he directly pointed out was signed directly by the electrical engineer and the boss. He said this to Xiao Zhang when they first met. It was very unfriendly at the beginning.

The turmoil at the entrance of the hotel:

One morning, before the taxi was triggered by the gathering at the door of the hotel, in the hotel lobby, in front of the guests entering and leaving the hotel, under the gaze of the beauties at the front desk, Master Liu gathered everyone around him, surrounded him in the middle, and began to assign work tasks to everyone like a leader meeting. Master Liu has lived in this hotel for a long time, and the beauties he serves know each other. Master Liu stroked the sparse hair on his head and looked at Xiao Zhang, who had hit him back in the past few days. So Xiao Zhang felt that he might use his power to establish a character. But Xiao Zhang thought that if he could not go too far, he would definitely give him face, and he would definitely face it with a humble attitude, no matter how good Master Liu was, after all, he was a customer, and the goal was to get the labor remuneration in the end. 

But Master Liu doesn't understand electrical PLC programming and CNC G code, he only understands the mechanical aspect. In this case, Xiao Zhang wanted to agree first, and then explain to Master Liu the reason why it could not be realized after waiting in the factory workshop. But in front of many colleagues and hotel personnel, Xiao Zhang felt humiliated to set up his own character, and his self-esteem and vanity also played a role, so he denied Master Liu on the spot. At this time, the formation workers who should be in the same camp as Xiao Zhang sang the opposite tune with Xiao Zhang in order to please Master Liu, Xiao Zhang said that it could not be realized, and the formation workers said that it could be realized. In the contradiction, all the goodwill that has been built for customers in the past few days has been taken away by the formation workers. After arriving at the customer site, Master Liu directly found Xiao Zhang, his attitude was the opposite of the toughness in the hotel lobby, and he said in a very gentle tone: What you said in the hotel lobby is correct. Xiao Zhang realized that at this moment, Master Liu already had an opinion on him in his heart. Next is to fortify.

Because the formation workers were deliberately or even deliberately conservative, they did not tell Xiao Zhang some key equipment functions (as explained earlier that there was no manual), which led to a substantial deterioration in the process. It directly led to the failure of Xiao Zhang's plan this time.

At the critical moment, he walked away:

The formation workers set up communication barriers and did not tell Xiao Zhang the key

functional attributes of the equipment.

At the scene, Xiao Zhang's consultation with the workers for the equipment function is friendly and humble, and in turn, the attitude of the workers is unfriendly, hostile, and even prickly in their speech. The voice was hoarse and full of anger with a quarrel and attack. Then I privately spoke ill of Xiao Zhang to the introducer boss, saying that the questions Xiao Zhang asked were all basic knowledge of PLC and CNC G code that had nothing to do with the equipment before coming. Xiao Zhang learned when he talked to the introducer again, and the introducer said on the phone with emotion: We are not a training school, we need to go to the site to have basic knowledge to work. Xiao Zhang wanted to explain to the introducer (boss) that the situation on the scene was not what he said: "l didn't ask the introducer about the basic knowledge of PLC programs and CNC CNC G code, and the introducer did not carry out the boss's intention to tell me the basic functions of the equipment", the introducer (boss) did not understand the technology, and Xiao Zhang's rebuttal and correction did not necessarily have an effect, and the situation was very embarrassing and dangerous.

Engineer Zhen came once before, but was denied by Master Liu and transferred, but he still understood the basic functions of the equipment (such as which button corresponds to which function of the device, and which button needs to be clicked on the touch screen). So the boss transferred him again to help Xiao Zhang familiarize himself with the functions, and then go to other equipment sites after familiarizing himself with the functions. But he didn't expect the basic program of the equipment (there is a problem with the PLC program ontology framework, which requires him to contact other colleagues to spend time modifying), but the important thing is that he has anger in his heart, on the one hand, this anger comes from: he himself was denied and transferred away by customer service before, why can Xiao Zhang do it this time, if Xiao Zhang successfully wins this project, then the company's status of his 8-year official employee will be shaken, and the image in the minds of the boss will be damaged. At the same time, the formation workers are also a bit upset about the colleagues who left before or even left. So Xiao Zhang asked him questions, and when he asked, he didn't know anything, and then he didn't say anything, and even deliberately kept a distance from Xiao Zhang.

After arriving at the scene, the workers found that there was a problem with the basic program of the equipment (just like the foundation of the house), and the remote desktop operation + voice call of the program project developer changed a lot, in the process Xiao Zhang and the staff had a very friendly attitude: they needed to share their technical communication (turn on the speaker), Xiao Zhang wanted to familiarize himself with the basic functional attributes of the equipment through this process, but was rejected by the team worker. During the whole process, Xiao Zhang blocked Xiao Zhang's exclusion. Even so, Xiao Zhang has become familiar with most of the button functions of the equipment through the clues of the operation of the array workers through the eyes with his eyes (directly asking the array workers will not reply), and has also played a positive role in the entire debugging process, such as adjusting and modifying some CNC G-code functions according to customer requirements. However, when most of the functions are adjusted almost the same, all the customers are watching on site, intending to carry out a real experimental operation.

 when the PLC program CNC G code is executed to one-third, there is a button that needs to be pressed on the screen, and the size data of the raw materials can be input into the PLC to accurately execute the running trajectory of the equipment. If you don't press that button, the whole program will return to the start state and then execute, which will readjust the position of the calibration raw materials, and this adjustment and calibration operation is completed by the customer, so all actions that need to be done by the customer must be paid attention to in the debugging, because they are unwilling to do it in their hearts first, especially "Master Liu", so that they will complain more if they repeat a certain action. The press and click of this button is also exquisite, not just a short time click in the screen, it is necessary to press the screen button with your fingers, and at the same time stare at another parameter on the screen to change before it can be released, so that it can work.

 Xiao Zhang just saw the formation worker press the button, but no one told Xiao Zhang how much to press, so Xiao Zhang thought that it was a short time click based on the information seen from a distance (why is the grille still separated from the distance, because as long as Xiao Zhang walks into the formation worker, the formation worker will walk away), as for the key information that makes the parameters on the screen change, no one told Xiao Zhang, and soon the program step execution will reach this link, at this time the formation worker took the mobile phone and deliberately pretended to answer the phone and walked out of the factory. He expected that Xiao Zhang was not clear about this link, and was ready to make Xiao Zhang embarrassed in front of customers. In the eyes of customers, Xiao Zhang and Engineer Zhen are their suppliers, equal, they are not considerate o the distinction between Xiao Zhang is temporarily coming to work, and they are not familiar with the functions of the equipment.

 Although Xiao Zhang observed through the scattered observation of clues: he noticed that the formation worker had to click this button every time, but for safety and insurance considerations, he still wanted the formation worker to confirm, but the formation worker deliberately left to watch Xiao Zhang's jokes, and he would not appear if the effect was not achieved. At this moment, IO minutes had passed for the waiting time for the formation, and Xiao Zhang wanted to find it, but he was hiding in the dark, unable to find it, and couldn't make a call. Master Liu on the customer's side seize the opportunity, and he began to press: Do you know how much we lost by stopping for one minute (in fact, there was no loss)? You always send some immature people to me to debug and delay our progress, hurry up, don't hesitate. I called your boss at night to complain about you. In a hurry, Xiao Zhang's head was also hot, and all kinds of difficulties in the past week made Xiao Zhang also lose his mind because he was depressed. 

He also wanted to bet Isn't there something great about it, isn't it just pressing a button, if it succeeds after pressing it, there will be nothing to do. With this mentality, he clicked on the screen (not long pressing to know the parameter change), and then the trajectory of the equipment operation deviated, Xiao Zhang stopped the execution of the PLC program in time, the equipment stopped, and the formation worker also appeared behind Xiao Zhang just right, and then the formation worker came to his senses, and he quarreled in a quarrel-like tone: Who asked you to press it so much, has this parameter changed, you are next? Then when the customer needed to adjust the operation of calibrating raw materials, the customer also began to complain, and Master Liu also threatened to complain. 

Xiao Zhang was clear: he could have waited for the team to come back to confirm, even if he was slow to complain about the customer, there would be no problem, but reality does not allow assumptions, impulsive actions were made by Xiao Zhang, he also felt very faceless, felt that the customer's public opinion environment was not good for him, his mind was hot again, and the introducer proposed not to continue to do it, and withdrew from the project, in fact, after the wrong result appeared, Xiao Zhang could also choose to continue to stay on the scene, because he didn't know that there were few problems left, almost all of them were touched, The next commissioning will go smoothly.

After getting off the bus in front of the hotel door, Master Liu once again showed "sophistication", because Xiao Zhang was leaving the project, Master Liu and Xiao Zhang chatted for a long time under the roadside lights outside the hotel: I can see the communication problem between you and the formation worker, in fact, when dealing with people like him, you just need to reply to him a few times. Because he has been in the company for a long time, he must be more trusted than you when he speaks in front of his boss, not to mention that you are a temporary worker. So don't say too much about his negative things when you mention formation work with your boss, and if you say too much negative things, your boss may not believe it. Not only do I not say anything negative, but I also praise the formation worker, such as "He is quite capable, but I have not received his introduction to the equipment (electromechanical PLC equipment), very little". 

In fact, Xiao Zhang's approach is still not very rational, and the party at fault is not Xiao Zhang: there is no manual, and the description of the button functions of the field equipment all rely on oral introduction - the scene can be easily reached that is the formation worker, and then the formation worker does not tell, not only does not tell but also hopes that Xiao Zhang will make a fool of himself, and then he also spreads rumors and complaints to the introducer boss behind his back. He can press the button without rushing, even if pressing the button is impulsive and leads to the occurrence of the wrong trajectory, it is not a big mistake, the raw materials are not wasted, there is no loss, and the program can be done from the beginning, and the project debugging will not be terminated. There is no need to pay attention to customer complaints and formation work. When the basic framework of the PLC program is modified, Xiao Zhang can also take over directly, directly call the project developer, replace the team worker, and let the team work go to other sites.

As a result, the remuneration set by the project was not received.