Det-Tronics S3 Graphics - Manual (Page 308)

13-83 EQP LOGIC EDITOR
Version 6.0
Item 150 - Inhibit Control
Setting this control item instructs the controller to inhibit the device or channel associated with this item. Clearing
the item will remove the inhibit.
Inhibit control and status resides in the controller, not the field devices. Only the primary alarm or input status
is affected. Inhibits do not trigger a fault condition. When a device or a channel is inhibited, the controller will
illuminate one of two LEDs. When inputs are inhibited the Inhibit led will be activated and when an output
channel is inhibited the Out Inhibit led will be activated. Inhibits can be controlled from S 3 , user logic or from the
faceplate.
To change the inhibit state from the faceplate, navigate to the “Control Inhibit” property for the device or channel
and press the enter button, inhibit control will toggle. Resetting the controller or field device will not change the
inhibit state. Inhibits will persist through a download as long as the same device type remains at the address.
Inhibits will be lost during a loss of power or after a watchdog reset.
There are no built in time-outs for inhibit. An “Actual State” variable was added to show the state of an inhibited
input but S 3 does not currently display it. The “Actual State” variable is used by the controller when the inhibit is
removed. This allows the alarm or active condition to reactivate before the next status message from the device
arrives.
For SIL rated devices the master inhibit control must be enabled to allow inhibits to activate. See static logic
function for controller digital input #4 for more information.
Device What is Inhibited
DCU Low and High Gas Alarm
IDC Input Active
UV_Detector Fire Alarm
SAM Output
ARM Output
UV/IR Fire Alarm
PSM
DCIO Input Active or Output
Relay Module Output
Eclipse Low and High Gas Alarm
X3301/2/Automotive Fire Alarm
X2200 Fire Alarm
X9800 Fire Alarm
X5200 Fire Alarm
Controller Relay Output will not activate
Controller Digital Input Input Active
AIM Low and High Alarm
EDIO Channel Active, Input or Output
EDIO_SIL Channel Active, Input or Output
X3301_SIL Fire Alarm
ECLIPSE_SIL Low and High Gas Alarm
Item 151 - Request AC Voltage
Setting this control item instructs the controller to retrieve the AC voltage from the field device.
DEVICE ITEM NUMBER DESCRIPTIONS