Det-Tronics S3 Graphics - Manual (Page 304)

13-79 EQP LOGIC EDITOR
Version 6.0
Item 102 - LON B Interface Fault
The bit is set when a problem is detected with LON interface channel B.
Item 103 - Inhibit Status
This item is set when a device or channel has been inhibited.
Item 104 - Zero Drift
This item is set when a gas detector goes negative to point of a fault.
Item 105 - Option Board Fault
The controller sets this item true when a fault is detected in the controller option board.
Item 106 - Invalid Configuration
This item is set on new units, when the address is changed, or when invalid data is transferred to the device. A
valid configuration must be downloaded to clear the item.
Item 107 - Fault
The controller performs a logical OR of all field device faults to control this item.
Item 108 - Unable to Configure
This item is set when the controller is unable to successfully transfer configuration information to the field
device.
Item 109 - Last Direction
The controller has two LON channels A and B. In normal operation, both channels receive status messages
from all devices. However, during network fault conditions messages will only be received from one side. This
item indicates the last side status information was received from. This along with the offline bits can be used in
determining the location of a network break. When the bit has a value of 0, channel A was the last side, a value
of 1 indicates channel B was the last side.
Item 110 - Lon A Device Offline
This item is set when the controller has not recently received status messages from the device on the first Lon
channel.
Item 111 - Lon B Device Offline
This item is set when the controller has not recently received status messages from the device on the second
Lon channel.
Item 112 - Device Offline
Three offline item are provided for enhanced fault diagnostics. The controller maintains offline timers for every
device on the network. The controller sets the LON x device offline item when it has not received messages from
the device on that channel, A or B. The device offline fault item is set when both LON A and B offline bits are set
(totally offline). The controller will not attempt to talk to devices that are offline. The item are automatically cleared
when status messages are received.
DEVICE ITEM NUMBER DESCRIPTIONS DEVICE ITEM NUMBER DESCRIPTIONS