What is purpose to use relay after digital output module? Why normally we don't use relay for digital input module?

3 Answers   Siemens, Sofcon,

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what is an ac servo motor,how does it work?

1 Answers  

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for the steam temp 420dec de superated to 120deg how much of water required

0 Answers  

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how a three wire proximity can be used in place of two wire proximity?

0 Answers   Samtel,

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what is 3M

2 Answers   Samtel,

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CHMER EDM MACHINE PRINTED CIRCUIT BOARD

1 Answers  

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what is dc injection braking?

0 Answers   Samtel,

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Why we use pneumatic instrument.

0 Answers  

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How we install and terminate the wire of pressure transmitter and temprature transmitter. Give full explanation.

0 Answers  

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Differences between Modular & Integrated PLC ?

1 Answers  

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how can we choose the controller of CNC bending machine?and how can we know the nomber of the machine axis?

0 Answers  

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what is the formula to get the 3 phase motor winding resistance? for example, i have 460v and 3A ? what would be the per phase winding resistance? thank you..

4 Answers   Sabic,

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