PROFI-5053 PROFIBUS DAQ Module - QuickStart (Apr/2017)
ICP DAS USA, Inc.
|
www.icpdas-usa.com
| 1-310-517-9888 | 24309 Narbonne Ave. Suite 200. Lomita, CA 90717
3
Terminating Resistors
In order to minimize the reflection effect of the signal transmission, PROFIBUS
device has to fit with an active terminal resistor at both first node and last node.
The connection of active terminating resistors is shown in above circuit diagram.
The PROFI-5000 doesn’t have any terminating resistors inside. Therefore, users
must add the terminator in external. In general, PROFIBUS connector has
terminating resistors inside, and there is a switch to control the ON/OFF of the
terminating resistors, as shown below.
Terminator ON
Terminator OFF
Terminator Switch
Node Address
According to PROFIBUS specification, the station address which from 0 to 126 is
valid, and the address 126 is a special address that supports the remote setting
SSA telegram from Class 2 DP-Master.
PROFI-5045/
PROFI-5050/
PROFI-5051/
PROFI-5052/
PROFI-5053/
PROFI-5055/
PROFI-5060
-
