Siemens ESM - Manual (Page 63)

Interfaces, Displays and Operator Controls
Industrial Ethernet OSM/ESM
C79000-Z8976-C068-10
59
Full duplex
Note
LED 3 exists only on devices with digital
inputs.
Port LED
- Lit green: Port operating in full duplex
mode
- Not lit: Port operating in half duplex mode
Fault mask
Note
LED 3 exists only on devices with digital
inputs.
The fault mask indicates whether the ports
and the power supplies are monitored with
the signaling contact.
Port LED
- Lit green: Port is monitored; in other
words, if the port does not have a valid
connection (for example cable not
plugged in or attached device turned off),
the signaling contact is triggered.
- Not lit: The port is not monitored; in other
words, an invalid or valid connection at
the port does not trigger the signaling
contact.
The fault mask can be set again with the
button on the front panel of the OSM (see
4.2.4.2)
Digital inputs
Note
LED 3 exists only on devices with digital
inputs.
Port LED
- Lit green: The logical state "1" is applied
to the corresponding digital input. This
requires an input voltage of + 13 V DC to
+ 30 V DC.
- Not lit: The logical state "0" is applied to
the corresponding digital input. This
requires an input voltage of + –30 V DC
to + 3 V DC.
The basic status "Port Status" of the display is adopted automatically after turning
on the device. The device also switches automatically to this display status when
the "Select/Set" button is pressed for more than a minute.
Display
Display
LED on LED off LED off
LED on LED on LED off
Display
LED off LED off LED on
3 2 1
3 2 1
3 2 1