Siemens S7-400PLC Spezifikationen Seite 349

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Interface modules
6.2 Interface modules IM 460-0 (6ES7 460-0AA01-0AB0) and IM 461-0 (6ES7 461-0AA01-0AA0)
S7-400 Automation System Module Data
Reference Manual, Edition 09/2009, A5E00850736-06
349
Operator controls and indicators on the send IM
Table 6- 6 Operator controls and indicators on the send IM
LEDs Meaning
EXTF LED (red) Lights up in the event of an external fault. Line 1 or line 2 is faulty (terminator
missing or broken cable)
C1 LED (green) Line 1 (via front connector x1, connection 1) is correct.
C1 LED (flashing
green)
An EU in the line is not ready for operation because
The power supply module is not switched on or
A module has not yet completed the initialization process
C2 LED (green) Line 2 (via front connector x2, connection 2) is correct.
C2 LED (flashing
green)
An EU in the line is not ready for operation because
The power supply module is not switched on or
A module has not yet completed the initialization process
Front
connectors x1
and x2
Connector (output) for line 1 and line 2
X1 = upper front connector; x2 = lower front connector
Operator controls and indicators of the receive IM
Table 6- 7 Operator controls and indicators of the receive IM
LEDs Meaning
INTF LED (red) Lights up if a rack number > 21 or = 0 was set.
Lights up if you have changed the rack number under voltage.
EXTF LED (red) Lights up in the event of an external fault (line fault, for example, if the terminator
is not inserted or if a module has not yet completed the initialization process).
DIP switch DIP switch to set the number of the mounting rack.
Front connector x1 Upper connector (input) for the cable from the previous interface module.
Front connector x2 Lower connector (output) for the cable to the next interface module or for the
terminator.
Parameter assignment for the mounting rack number
Using the DIP switch on the front panel of the module, you must set the number of the
mounting rack in which the receive IM is installed. The permitted range is 1 to 21.
Setting/changing the number
Proceed as follows:
1. Set the switch of the power supply module in the EU in which you want to make the
change to the
position (Output voltage 0 V).
2. Enter the number using the DIP switch.
3. Switch the power supply module on again.
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