User Manual

“Halo” System: Communication Protocol 970-00002-000

EXI Wireless Systems, Confidential Page 20 of 33 July 27, 1999

5.2.2.5. Host Alarm ON

Message which informs the host that its command to set the alarm has been received and that the Controller

is in the alarm mode.

5.2.2.6. Unlock Request ON

Message which informs the Host that its command to unlock the door has been received and the door is

unlocked.

5.2.2.7. TIC Alarm

Message sent when TIC alarm is received from the Tag. This is the message with the highest priority when

the system is in the normal operating mode (not in the Test mode)

5.2.2.8. Test Mode

Message sent when the Controller is in the Test mode (set by the switch inside the Controller). No alarms

are set in this mode and it is usually used to set the field of coverage.

‘No ID’ Messages

These messages carry information about the system status. They have lower priority then ID messages.

5.2.2.9. Pin Number Entry

This message carries to the Host up to 6 keys entered from the keypad. To distinguish between a key “0”

and no key, the key “0” is coded as “A” (1010 Hex), and no key is coded as “0” (0000 Hex). If more then 6

keys are entered, only last 6 are sent to the controller.

5.2.2.10. Event (Door Open)

Message applicable to Elevators only. It is sent when the elevator door opens. This message is passed to the

RIM every time when the door changes state, but the RIM sends this message to the Host only if the

Elevator door has not changed its state for some time.

5.2.2.11. Switch Configuration

This message carries information about the Controller setup selectable by the installer by rotary switches

and about firmware version. Three data bytes are assigned as follows:

1. Version Number (Version of firmware)

2. Mode / Option

Following table illustrates Mode switch configuration and related modes of operation.

Table 4

Mode Controller Function Response

0 Test Mode Alarm ends on its own – fixed bypass time

1 Patient Monitoring with RBC Continuos alarm – fixed bypass time

2 Patient Monitoring with RBC Alarm ends on its own – fixed bypass time