Connect PC to I/O Distributor via Profibus

Dhiyia

Hi

I have / 3 / nodes in my system & it is working properly …

The distance between the PLC & last node is 150 m … so I would like to connector my PC to last node ( ET 200S ) via Profibus port for download & monitor the program from last node ….

As soon as I connect the my PC to ET 200S port via Profibus connector with PG inter face there is no any LED light on in the PC Adaptor USB ….???

Do you have any idea what is the problem ….????

Thanks

PC adapter usb USB LED is not getting mean check the usb driver and cable some time connector end also not fixing see attached snap to establish communication

MRG

Pranav J. Bhagat

Dhiyia

Hi I have / 3 / nodes in my system & it is working properly … The distance between the PLC & last node is 150 m … so I would like to connector my PC to last node ( ET 200S ) via Profibus port for download & monitor the program from last node …. As soon as I connect the my PC to ET 200S port via Profibus connector with PG inter face there is no any LED light on in the PC Adaptor USB ….??? Do you have any idea what is the problem ….???? Thanks

As it may have passive port, you cannot connect your adapter their, As Adapter will not power up from passive port. .

We note that Profibus is carried on a pair of parallel wires (RS485 Physical layer) and150m is not a big distance to voltage drop.
Also, it's possible because I've done it many times.

Regards,
MRG

Pranav J. Bhagat

...Dear there is not the issue of Voltage Drop. . But as RIO having passive port which is unable to Power Up PC Adapter. . Generally CPU or HMI consist active port. . through which PC adapter get powered up. .

UMENCHO

Pranav J. Bhagat

...Dear there is not the issue of Voltage Drop. . But as RIO having passive port which is unable to Power Up PC Adapter. . Generally CPU or HMI consist active port. . through which PC adapter get powered up. .

If I am not wrong you mentioned the same before.I could add a DP Repeater will make a trick.Looong thread.