Endress+Hauser Proline Promag H 500, Руководство по эксплуатации

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Electrical connection Proline Promag H 500 PROFIBUS DP
60 Hauser
Proline 500 transmitter
Hardware addressing
1.
1
2
3
4
5
6
7
8
128
64
32
16
8
4
2
1
PR
OFIBUS addr
ess
not used
A0029637
Set the desired device address using the DIP switches in the connection compartment.
2.
On Off
2
3
1
4
A0029633
To switch addressing from software addressing to hardware addressing: set the DIP
switch to On .
 The change of device address takes effect after 10 seconds. The device is
restarted.
Software addressing
‣
To switch addressing from hardware addressing to software addressing: set DIP switch
No. 4 to Off .
 The device address configured in the Device address parameter (→  110) takes
effect after 10 seconds. The device is restarted.
7.6.2 Enabling the terminating resistor
To avoid incorrect communication transmission caused by impedance mismatch, terminate
the PROFIBUS DP cable correctly at the start and end of the bus segment.
• If the device is operated with a baud rate of 1.5 MBaud and under:
For the last transmitter on the bus, terminate by setting DIP switch 3 (bus termination)
to ON.
• For baud rates > 1.5 MBaud:
Due to the capacitance load of the user and the line reflections generated as a result,
ensure that an external bus terminator is used.
It is generally advisable to use an external bus terminator as the entire segment can
fail if a device that is terminated internally is defective.