22
Siemens Building Technologies
Cerberus Division
E1481b
06.2000
7.3
Example no. 3
In this third example we configure a two level network. The gateway is connected to
two GW-20s, one CS11, one standard subsystem and one CMX, in this way:
§
1st GW-20
UART 1
§
2nd GW-20
UART 2
§
No subsystems
UART 3
§
Standard (CDDL / CDSF) UART 4
§
CMX / CF9003
UART 5
§
No subsystems
UART 6
The two GW-20 communication speed is 9600 baud with ciphering not enabled.
The DIL-Switch settings are as follows:
DIL-Switch
subsystem
network address
S1.4
ON
S1.5
ON
UART 1
S1.6
ON
1st GW-20 (two level network)
S2.2
ON
S2.3
ON
UART 2
S2.4
ON
2nd GW-20 (two level network)
S2.8
ON
S3.1
OFF
UART 3
S3.2
OFF
CS11
0
S3.6
OFF
S3.7
ON
UART 4
S3.8
ON
Standard (CDDL / CDSF)
1
S4.5
ON
S4.6
ON
UART 5
S4.7
OFF
CMX / CF9003
2
S5.3
OFF
S5.4
OFF
UART 6
S5.5
OFF
No subsy stems
3
Tab. 12
8
Troubleshooting
On problems with the communication to the control units:
§
First check if the baud rates and the subsystem’s protocols of the gateway are set up
correctly (see Sections 4.2.1 and 5 of this manual).
§
Check if the connections of the gateway to the monitoring system (PC or GW-20) and
to the control unit have been implemented in the way described in Sections 6.1 and
6.2 of this manual.
If the red LED on the CPU board blinks fast (4 Hz):
§
there could be a configuration error - check carefully the configuration you set.
or
§
there is a download in progress. Wait till the download ends
If the red LED on the CPU board blinks slow (1 Hz):
§
the RAM is fault - call for technical assistance
If the green LED on the CPU board does not blink
(it either permanently ON or OFF)
§
there is a general failure - call for technical assistance
Summary of Contents for Cerberus GW-21
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