Security - ABB GW100 User Manual

CO NF IG UR AT IO N O F WIR ELES SHART NET WORK
Field
Stale Data Timer
Channel Blacklist
6.6.1
Two methods of security are available in a WirelessHART network created by AWIN GW100
rev.2.
Accept Common Join Key
The Common Join Key security method uses a single, common key value entered in all Wire-
lessHART devices and the AWIN GW100 rev.2 gateway. Each WirelessHART device sends the
same common key. If the key matches the entry in the gateway, the device is allowed to join
the network.
In the Common Join Key field, enter the common key value.
Require Access List Entry
The Access List security method allows access via an external join list in addition to a Join
Key.
To enable the Require Access List security mode, click the Require Access List Entry radio
button. In the MAC Address field, enter the MAC addresses of the WirelessHART devices in
the network.
In the Join Key field, enter the key value. The key value consists of four fields of hexadecimal
characters (0-9, A-F) for a total of 32 characters. Click Submit button after entering each
MAC address.
After entering all the MAC addresses and corresponding Join Keys, reboot the gateway and
allow approximately 30 minutes to 1 hour for the network to form.
36
Description
Data from WirelessHART devices is cached in the gateway.
This allows the gateway to respond quickly to host requests
without having to constantly obtain fresh device data (a
much slower transfer). To ensure the validity of the data
stored in cache, each point of data is time stamped.
If the cached value has not updated within one-third of the
stale data timer value, a downstream request for the update
will be sent to the device.
If the data in cache is not updated within the stale data
timer interval, a Modbus Exception code will be generated to
the host system and the cached value will be cleared from
the gateway.
Allows specific WirelessHART channels to be blocked from
use in the channel-hopping scheme. Channels must be
blocked in pairs, so an odd number of channels is always
available.
To provide blacklist channels: Separate channel numbers
with a comma and no spaces, example: 3,5,11,12.
See section
By selecting Submit All, the parameters configured on this page are saved and
downloaded to the AWIN GW100 rev.2 gateway.

Security

Channel Blacklist for details.
CO NF IG URATI ON
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