Keri Systems TAP100 - Manual (Page 68)

TAP 100 Application Software Manual
Page 68 Revision 3.3
Once communication is complete, the reader is locked.
Unlock A Reader
The unlock a reader command immediately unlocks a selected reader, allowing access or egress.
To immediately unlock a reader, use your pointing device and select Readers and then Unlock a
reader. The following prompt box will appear.
The Status Message Line will display:
Once communication is complete, the reader is unlocked.
Enable Global Lock/Unlock
The enable global lock/unlock (GLU) function allows an external device to automatically lock or
unlock all readers on the network at one time. The factory default value is to disable this feature,
so you must enable the global lock/unlock feature if you want to use it.
When enabled, the master control unit will monitor the input state of the External Time Zone input
relay, also known as AUX IP0 (TB1, pins 1 and 2). The default sense of the GLU input is TTL
Logic 0, corresponding to a global lock readers command. TTL Logic 1 at the GLU input
corresponding to a global unlock readers command. All other system functions continue to
operate as usual, including the automatic lock/unlock (ALU) time functions.
While enabled and the GLU input is in the locked state, all doors on the network will remain
locked until one of three possible conditions are detected.
1. A change in the GLU input state from 0 to 1 is received.
2. An unlock a reader command is received.
3. An ALU time is met.
When one of these conditions is achieved, the appropriate doors will be unlocked.
While enabled and the GLU input is in the unlocked state, all doors on the network will remain
unlocked until a change in the GLU input from 1 to 0 is received. When this condition is achieved,
all doors will be locked without exception. The GLU lock command takes precedence over all
other functions including the ALU function.
Enabling the GLU feature will immediately lock all doors if the GLU input is at the appropriate
state.
Regardless of if the GLU command is enabled or disabled, every state change at the GLU input is
logged and forwarded to the host.
To enable the global lock/unlock function, use your pointing device and select Readers and then
Enable global lock/unlock. The Status Message Line will display:
Initiating communication with local network on COM1 . . . please wait.
Initiating communication with local network on COM1 . . . please wait.
Reader number to unlock: (1-32)