Table 5-6 Meaning Of The Leds On The Front Panel Of The Tim 4R-Ie - Siemens SIMATIC NET SINAUT ST7 System Manual

Installing and putting a TIM into operation
5.2 Design of the TIM 4R-IE
Table 5-6 Meaning of the LEDs on the front panel of the TIM 4R-IE
LED no. Labeling
1 BATF
2 KBus
3 TXD1
4 RXD1
5 TXD2
6 RXD2
162
Relevant TIM port Type of WAN
driver
All -
K bus -
RS-232 interface 1 Dedicated line
Dial-up network
RS-232 interface 1 Dedicated line
Dial-up network
RS-232 interface 2 Dedicated line
Dial-up network
RS-232 interface 2 Dedicated line
Dial-up network
Description
If there is a functioning battery installed, the LED is
off.
The LED lights up red if the battery is not inserted in
the battery compartment or if the battery voltage is
too low.
Data flow over the backplane bus
The display state changes with each message
received or sent over the backplane bus.
Transmit data
LED is lit constantly and is off while a message is
being sent (TXD).
Transmit data
No connection established:
LED is off.
Connection is established:
LED is lit constantly and is off while a message is
being sent (TXD).
Receive data
As long as receive level (DCD) is detected, the LED
is lit and goes off while a message is being received
(RXD).
Receive data
Lights up with an incoming call (RI), remains lit as
long as receive level (DCD) is detected and goes off
while a message is being received (RXD).
Transmit data
LED is lit constantly and is off while a message is
being sent (TXD).
Transmit data
No connection established:
LED is off.
Connection is established:
LED is lit constantly and is off while a message is
being sent (TXD).
Receive data
As long as receive level (DCD) is detected, the LED
is lit and goes off while a message is being received
(RXD).
Receive data
Lights up with an incoming call (RI), remains lit as
long as receive level (DCD) is detected and goes off
while a message is being received (RXD).
SINAUT ST7 Station control system - System Manual
System Manual, 05/2007, C79000-G8976-C178-06