FEC DSP1500 Main Unit User Manual
Page 72
enFORCE
DSP1500 Main Unit Hardware Manual
(Rev. 4.0)
PAGE 5 - 32
Chapter 5: Control Interfaces
5.6.1 Component Descriptions
Fieldbus Interface Connection
Pin
No.
Signal
Description
1
N.C.
2
N.C.
3
B- Line
Positive RxD/TxD according to RS485 Spec.
4
RTS
Request
to
send
5
GND Bus Isolated GND from RS 485 side
6
+5V Bus
Isolated +5V from RS 485 side
7
N.C.
8
A- Line
Negative RxD/TxD according to RS485 Spec.
9
N.C.
(9 pin female D-sub)
Housing Shield
Connected to PE
Termination
Termination of the fieldbus requires a terminating resistor at each end of the
fieldbus. A termination switch is provided on the Profibus-DP interface board.
Set the switch to “ON”, if termination is required. If external terminators are
used, the switch must be in the off position.
Node Address
Before configuring the Profibus-DP module, the node address has to be set.
This is done with two rotary switches on the module which can set the node
address 1-99 in decimal format. The Upper rotary switch (closest to the D-sub)
sets the “tens” digit (10x), and the bottom rotary switch sets the “ones” digit (1x).
Example: To set node 37, place the “tens” digit switch on 3 and the “ones” digit
switch on 7.
This switch must be set before power is on, and cannot be changed
during operation.
Status LEDs
LED Status
Description
1 -
Not Used
2
Off
Module not on-line
Green
Module is on-line and data exchange is possible.
3
Off
Module is not off-line
Red
Module is off-line and data exchange is not
possible.
4
Fieldbus
Diagnostics
Off No
diagnostics
present.
Red flashing at 1
second intervals
Error in configuration: IN and/or OUT length set
during initialization of the module is not equal to
the length set during configuration of the
network.
Red flashing at 1/2
second intervals
Error in user parameter data: The
length/contents of the User Parameter data set
during initialization of the module is not equal to
the length/contents set during configuration of
the network.
Red flashing at 1/4
second intervals
Error in initialization of the PROFIBUS
communication ASIC.
5
1
9
6
1
2
3
4