8 Fieldgate Configuration
WirelessHART Fieldgate SWG70
44
Hauser
8.2.2
Advanced Setup
Channel Blacklist
Where several wireless networks are in operation on a site and all are critical for plant operation, it
is advisable to set up them up such a way that mutual interference is avoided. This is done by
restricting the channels on which a particular network can broadcast.
In general, a WirelessHART network dynamically adapts channel usage to new situations, for
example if a new wireless network is installed in the area where the WirelessHART network is
located. If WLAN and WirelessHART are used together in a production environment, it is necessary
to set up channel usage manually in the Channel Blacklist.
It should be noted that a WLAN channel based on the IEEE 802.11 standard is wider than a
WirelessHART channel based on the IEEE 802.15.4 standard. If a WirelessHART network is to be
run parallel to a IEEE 802.11 network, several WirelessHART channels must be disabled. Also note
that the channel numbering differs for each type of network:
For example: If the WLAN uses channel number 5, channels 5 to 8 in the WirelessHART network
must be disabled.
Disabling channels
1 Disable a channel by deactivating its check box in the Channel Blacklist
–
The number of remaining active channels must be odd
–
At least 5 channels must remain active.
2 Click
Send to Device
to transfer the updated blacklist settings to the Fieldgate
–
Fieldgate stores the updated blacklist but does not apply the updated settings until
the network is reformed.
3 Go to
Additional Functions > Reset
and click
Reform Network
to apply the updated
channel blacklist.
Channel numbering
Wifi
Wireless
HART
IEEE
Wifi
Wireless
HART
IEEE
Wifi
Wireless
HART
IEEE
Wifi
Wireless
HART
IEEE
1
1 – 4
11 –1 4
5
5 – 8
15 – 18
8
8 – 11
18 – 21
11
11 – 14
21 – 24
2
2 – 5
12 –1 5
6
6 – 9
16 – 19
9
9 – 12
19 – 22
12
12 – 15
22 – 25
3
3 – 6
13 – 16
7
7 – 10
17 – 20
10
10 – 13
20 – 23
13
13 – 15
23 – 25
4
4 – 7
14 – 17
Содержание Fieldgate SWG70
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