Profibus PROFI-2510 Setup guide

Quick Start User Guide
Introduction
This user guide introduces the user how to implement the PROFI-2510
/ PROFI-2541(SC) into their applications in a quick and easy way.
Therefore, it only provides the basic instructions. For more detail
information about the PROFI-2510 / PROFI-2541(SC) module, please refer
to the PROFI-2510 / PROFI-2541(SC) user manual in the ICP DAS product
CD or download it from ICP DAS web site.
PROFIBUS Connector
Pin No. Signal Meaning
3 B-Line Receive/Transmit data – plus
5 GND Power ground of active terminator
6 VP Power 5 volt of active terminator
8 A-Line Receive/Transmit data - minus
PROFI
-
2510 / PROFI
-
2541
(
SC
)
The PROFIBUS connector is a standard 9-pin D-Sub connector, there are
only 4 pins used in PROFI-2510 / PROFI-2541(SC). The pins VP and GND
support the 5 volt power to active terminal resistor, and the A-Line and
B-Line is the data bus.
Status Indicator
PROFI-2510 PROFI-2541(SC)
It provides three status indicator, In PROFI-2510, they are PWR LED
(red),DP1 LED(green) and DP2 LED (green). In PROFI-2541(SC), they are
PWR LED (red), TxD LED(green) and RxD LED (green). When the power is

supplied to module, PWR LED will turn on; Transmitting/receiving one data
to/from fiber cable will flash the DP1/DP2/TxD/RxD LED once. The
DP1/DP2/TxD/RxD LED may always be turned on if there are a lot of datas
transmitted on fiber cable.
PROFI-2510 PROFI-2541(SC)
PWR Led (Red) PWR Led (Red)
ON Module active ON Module active
OFF Module inactive OFF Module inactive
DP1 Led (Green) TxD Led (Green)
Flashing Data transmitting Flashing Data transmitting
OFF No data transmitting OFF No data transmitting
DP2 Led (Green) RxD Led (Green)
Flashing Data transmitting Flashing Data transmitting
OFF No data transmitting OFF No data transmitting
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-2510 / PROFI-2541(SC) 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
O
N
Terminator OFF
Terminator
Switch
Wire Connection
PROFI-2510
If PROFI-2510 is a end device of PROFIBUS segment 1 and
PROFIBUS segment 2. The terminal resistor of segment 1 is ON. The
terminal resistor of segment 2 is ON.
If PROFI-2510 is an intermediary device of PROFIBUS segment 1. The
terminal resistor of segment 1 is OFF.

PROFI-2541(SC)