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FMU Technical Manual
2.3 FP-FMU LEDs and Connectors
11
2.3.1 FP-PROFIBUS
DP
SYS LED (see page 10)
COM LED
Color
State
Indication
ON.
FMU is holding the PROFIBUS token and is able to transmit
PROFIBUS telegrams.
Acyclic flashing.
(Between 0.5Hz and 100Hz.)
FMU is sharing the PROFIBUS token with other master
devices in the PROFIBUS network.
Yellow
OFF.
FMU is not configured or has not received permission to hold
the token in the PROFIBUS network.
Red
ON.
FMU has detected a communication problem with at least
one PROFIBUS slave device. Connection timeout.
PROFIBUS connector, DB9F, 9-pin Sub-D female
Connector
Pin
Signal
Description
1
- -
2
- -
3
B Line
Positive RxD/TxD, RS485 level
4
RTS
Request to send
5
GND
Bus ground (isolated)
6
+5V bus output (see
note)
+5V termination power (isolated)
7
- -
8
A Line
Negative RxD/TxD, RS485 level
9
- -
1
9
6
5
Housing
Cable shield
•
FP
Σ
: Internally connected to the function earth
connector of the FMU.
•
FP2: Internally connected to the earth terminal of
the power unit.
NOTE
Any current drawn from pin 6, the +5V bus output pin, will affect the total power
consumption.
Summary of Contents for FMU
Page 1: ...programmable logic controller FMU Technical Manual ...
Page 3: ......
Page 9: ......
Page 10: ...Chapter 1 Features and Restrictions ...
Page 13: ......
Page 14: ...Chapter 2 Parts and Functions ...
Page 23: ......
Page 24: ...Chapter 3 Specifications ...
Page 30: ...Chapter 4 Installation and Wiring ...
Page 42: ...Chapter 5 Programming Information for Control FPWIN Pro ...
Page 70: ...Chapter 6 Outline Dimensions ...
Page 73: ......
Page 76: ...Record of Changes Manual No Date Description of changes ACGM0161V10EN July 2008 First edition ...