What Value Is Displayed On The Gateway Webpage When A Device Goes Offline; What Value Is Displayed On Modbus Registers When A Device Goes Offline; What Happens When Multiple Devices Have Same Tag Name; How To Check That Wirelesshart Network Is Operating As Normal - ABB AWIN GW100 User Manual

WH AT VAL U E I S D IS PL AY ED ON T H E G ATE WAY W EB PAG E W H EN A DEV IC E G O ES OF FLI NE?
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9.7 What Value is Displayed on the Gateway Webpage
when a Device Goes Offline?
– When a device goes offline the Devices page (in admin account) marks the device as dis-
connected with a red color row entry.
– When a device goes offline the Devices page (in monitor account) marks the device as
idle.
– The last recorded device values are displayed on the webpages.
9.8 What Value is Displayed on Modbus Registers when a
Device Goes Offline?
– When a device goes offline the PVStale, SVStale, TVStale and QVStale reports zero value.
– Communication status register also shows device disconnection. However, this does not
happen immediately.
– Trying to read data from Modbus registers of a disconnected device will result in Modbus
exception.
9.9 What Happens When Multiple Devices Have Same Tag
Name?
If same tag name is used by multiple devices in the same WirelessHART network, then they
will still join the network but will not operate as desired on Modbus connection. Modbus map
is assigned based on Device's tag name. Therefore, every device should have a unique tag
name, else Modbus exception will occur.
9.10 How to Check that WirelessHART Network is
Operating as Normal?
Gateway's good health status can be verified by two means:
(1) Check via LEDs status on the hardware.
(2) Check traffic light on the gateway's webpage.
Check LEDs
– ST LED is solid green.
– MESH LED is solid green, if WirelessHART devices are connected.
– LINK LED is solid green.
– ORANGE LED is blinking in orange color.
– ERR LED is off.
5 6
Battery life will be displayed as 65535.000 until battery life value is reported by de-
vice in burst message. Initially, it may take some time to populate.
Battery life of 65535.000 is also displayed for loop powered devices.
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3BN P 102 9 12 C