3
Device view and design
gas-net
C1 and C2
Page 3-1
3 Device view and design
The housing of the
gas-net
C1 is designed as slide-in unit for a 19”-frame with a
width of 1/6, the
gas-net
C2 device has a mounting width of 1/3 or 1/2.
The front panel of the device contains the following operating and display
elements:
•
8 LEDs for status indication.
•
One pushbutton for triggering a general polling.
•
One user switch protecting particular parameters from being changed when
it is in the closed position. You can only export an entire parameterisation
data record into the device if the user switch is open (cf. Chapter 4.1).
The DSS data interface for the connection of a PC or laptop for servicing pur-
poses.
The following illustration shows, as an example, the front view of a
gas-net
C1
(narrow design with a mounting width of 1/6):
Data interface
DSS
Pushbutton for
triggering
general pollings
User switch.
Close the user switch
by turning it clock-
wise as far as it will
go.
Status LEDs:
Master
glows if the C1 is the bus master on
the DSfG bus.
Polling Fault
indicates that the DSfG station
list has changed.
Transmission, Reception
signal data
communications with the DSfG bus.
Host Fault
blinks if the communication with
the host is disturbed.
Data to Host / Data from Host
signal data
communications with the host.
Status:
The status LED glows green when
the device operates normally.
