Feels great to have survived the first day! Starting to get used to everything. No more "What if I'm lost in the highway" dilemma. Now I know where are the places to eat, pray, convenience stores and petrol stations. Best of all, everything is nearby! Its very convenient to work in this part of Puchong. Slowly I'm starting to develop a map of Puchong in my mind. 

As soon as I entered the office, me and my collie were given an assignment that is to troubleshoot a faulty customer's motor driver. Remember the servo motor I mentioned on my first interview? We are revisiting that problem. Forget the motor, our task is to troubleshoot the faulty motor driver. Firstly disconnect the CW (clockwise) ports of the faulty driver, connect to a working driver (the small silver box), connect that to a power supply and a brand new stepper motor (the smaller motor). Then both drivers are turned on but the rate of speed change of the motor is not uniform. My collie suggested that the root of the problem is in the faulty driver's internal circuitry.

Not long after that, we are asked to troubleshoot a newly arrived factory counter device ordered by a customer. First and foremost, we read the instruction manual and figure out the circuit connection and the required power supply. Then we started to connect the main power supply, proximity sensor and the solid-state module. Allow me to explain each device one by one. First up, the counter. The counter is the normal counter that some of you have come across in Digital Logic Design Lab. It has two outputs that will turn on or off depending on the preset counter value (at what counter value you want it to turn on). We connected the proximity sensor to provide an input signal to the counter so that the counter will start counting when the sensor is triggered and when the preset limit is met, the appropriate output will be triggered. The sensor has 3 wires, black, brown and blue. Black is connected to the signal port, Brown for input voltage and blue for grounding. Thirdly, the solid state module. It is actually a relay that provides the needed 12V for the output of the counter. I can't recall the exact function. Will explain later.

After lunch Mr. James invited me and my collie to go for another fieldwork (Yay~). This time its in an air conditioned factory in Shah Alam to troubleshoot a touch-screen PLC machine (sorry no pictures, no camera is allowed!). I learnt that the programming method is almost similar to programming a PIC18, you must have the interface software, serial cable and/or USB cable and the PLC machine. Users are able to download and upload a program to and from the PLC. But the programming is different than what I learn in MicroP Lab. Instead of using assembly programming or C++, the ladder diagram is used. Quite complicated I would say. But I was there just to observe the maintenance process. Still far from competence!

Then Mr. James brought us towards the west side of Selangor as far as Pulau Indah to deliver some stuffs to the customer. Mr. James was driving, at the rear seat it feels like "balik kampung" seeing the rural landscapes of Klang and Pulau Indah. Its good to have such view as it relaxes your mind after all that hard work. At the end of the trip, Mr. James "belanja us makan at mamak restaurant". (pardon the english!) Thanks Mr. James!

Time to prepare for tomorrow. Still have not finished writing yesterday's part of the logbook..need to stop procrastinating! But what the heck, its been a great day! There's still tomorrow and the day after..