We are facing the problem of communication failure between seimens drives and ABB DCS. Between drives and DCS on RLM -01 module for communication purpose. We found red blinking i.e error blinking in RLM -o1 module. So we replaced with new one but after one month same problem again came. So again we installed old RLM-01 module. Now also RED blinking is coming but sometimes drives are not tripping. What will be the cause for this problem?

0 Answers   DSPM,

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sir,i had a written test conducted by jindal steel and power ltd .so please forward me the type of questions asked in written test (technical)

0 Answers   Jindal,

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8 Answers  

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in long range commn AM is very appropriate.why?

3 Answers   Cisco,

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0 Answers   Verifone,

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what is electronics

9 Answers   Google, L&T, Rocket Media,

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Derive the expressions for average output voltage and rms output voltage of 1φ semi converter?

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Define angle and amplitude modulation? What is noise in modulation?

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What is the use of radar?

0 Answers  

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