Questions tagged [siemens]

Siemens AG is a German multinational engineering and electronics conglomerate company headquartered in Berlin and Munich. It is Europe's largest engineering company and maker of medical diagnostics equipment and its medical health-care division, which generates about 12 percent of the company's total sales, is its second-most profitable unit behind the industrial automation division.

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How to pass a DBWx-value 2 block-calls deep on Siemens S7-400/Simatic

I'm working on code that was transported from a Siemens S5 PLC to S7. The code works with an old FC(FC2 in the example) that uses a WORD-input called "BNR" to load/save data. When block FC2 ...
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3answers
58 views

IO link sensors with PLC

This is probably a stupid question but I am new to IO link sensors. When using IO link technology with a PLC (siemens s7-1200) can you connect devices that are not IO link sensors? For example say I ...
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2answers
513 views

TIA portal - failed to establish a connection

I'm using TIA portal siemens v15.1 for my project when i tried to upload the code to the plc this error pops up. Appreciate anyone can help me in this issue
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1answer
40 views

Simatic Microbox PC

I just started my research studies and part of it is based on an assembly line which uses a Microbox IPC427E for automation. However, I have never used a microbox before and only have some experience ...
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46 views

Drive stepper motor with potentiometer in Siemens PLC

It is difficult for me to drive a stepper motor with potentiometer (position stepper motor with position potentiometer). I've done program, to see the value from potentiometer with NORM_X. I am using ...
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100 views

Identifying exact type of transistor

I can not identify the exact model of this transistor. It reacts as a bipolar NPN Si transistor with EBC pin configuration (first image left to right,) not ECB! This seems to be made by Siemens. ...
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1answer
139 views

PLC s7-1200 Ladder logic

I'm checking some software for PLC s7-1200 According to my knowledge current time will never be > max time. hence, the logic will never trigger [so the code following P_TRIG is useless] ? [I'm ...
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2answers
332 views

Understanding ladder PLC logic

I'm trying to understand the flow logic of ladder language. Is it sequential like C/C++? "i don't think so" Particular case: I've been trying to something very simple but cant make it happen as I ...
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1answer
79 views

Finding current over controllable voltage source using nodal analysis

I have the following circuit: Let me explain the diagram a bit first: I0 is current in that direction, V0 is voltage and 2 V0 is also voltage times two. V1, V2, and V3 are my nodes. The 'S' by the ...
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1answer
304 views

Switching outputs using ladder logic

I am new to programming in ladder logic and am trying to write a simple program wherein outputs Y65 and Y66 follow the sequence: Y65 turns on for 30 seconds. Y65 turns off. Y66 turns on for 30 ...
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2answers
211 views

Can anyone identify this manufacturer? “E3”?

This has everyone I ask stumped. The board is a Siemens 115U CPU (6ES5943-7UA11) from the Simatic S5 rack, circa 1990's. It has some LEDs and two SPDT, O-ring sealed toggle switches on the front, one ...
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296 views

Does anyone know what the heck this is?

I really hope I'm posting this in the right section. I was strolling down the street and looked up at this massive barrel object mounted to a utility pole. It's hard to tell from the pic, but it ...
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1answer
240 views

How to vary the voltage output depending on the changes in temperature?

I am working with the Siemens Logo8! PLC (0BA8 version) and the purpose of my circuit seems to be simple: If temp > 25°C then output voltage = 8V If temp < 25°C and >15°C then output voltage = 5V ...
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1answer
133 views

What kind of apparatus could this be?

I apologize in advance, if this isn't the right place to ask this. I want to find out, what kind of electronic device this is. The tape recorder is just on top of it, but I am talking about the device ...
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1answer
772 views

LCD connector repair [closed]

Does any one know if it is o.k to run a soldering iron over the connector with the fine black traces on in the photograph attached(or below I am new to pic posting :D)? I have an office kitted out ...
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2answers
2k views

GPRS data call using GSM/GPRS modem (Siemens TC35 and/or MC35)

I'm developing a data aquisition module, that amongst other things, it have to comunicate through GSM/GPRS module, since it will be a mobile application. I can connect to the module and send sms's ...
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2k views

Why to use Siemens to measure high resistance?

I have a Fluke 87V and I can see lots of EEVBlog videos were Dave measure high resistance values, and instead of using the Ohms range, he goes to the Siemens range (nS actually). My question than is,...