Honeywell CGW-MB, Installation And User Manual, Page: 62 / 187

CGW-MB Installation and Users’ Manual | P/N:LS10248-000HW-E | REV.G | JUL/31/2022 61
Register Mapping Modbus Communications
7.21.3 Zones/Panel Circuits Status Holding Registers
Each of the zones/panel circuits status holding registers is divided into an upper and
lower byte as described below.
•
Upper Byte : The upper byte contains general status information about the zone or
panel circuit.
• Lower Byte: The lower byte is primarily used when bit 11 in the upper byte is a ‘1’ (or
active). When bit 11 is a ‘1’, See “CGW-MB Active Event Code” on page 73.
for detailed information about the active zone or panel circuit. The lower byte will be all 0’s
if the zone/panel circuit is not in an active state.
Specifically, the lower byte contains the actual active event for this zone or panel circuit.
An active state is defined in this CLSS Gateway mainboard as any Fire, Security, Critical
Process, Medical, Mass Notification, or Supervisory alarm state.
If the zone or panel circuit is not present in the panel programming, all bits in the lower
byte will contain a ‘1’ or the value ‘FFH’, but the upper byte will contain a ‘0’.
The only possible active event type for zones is Non-Fire Activation (71H).
See “CGW-MB
Active Event Code” on page 73.
301801 302100 L4D1–L4D300
302101 302400 L4M1–L4M300
302401 302700 L5D1–L5D300
302701 303000 L5M1–L5M300
303001 303300 L6D1–L6D300
303301 303600 L6M1–L6M300
303601 303900 L7D1–L7D300
303901 304200 L7M1–L7M300
304201 304500 L8D1–L8D300
304501 304800 L8M1–L8M300
304801 305100 L9D1–L9D300
305101 305400 L9M1–L9M300
305401 305700 L10D1–L10D300
305701 306000 L10M1–L10M300
Table 7.17: Input Register Addresses of the Point Device Types
Table 7.18: Zones/Panel Circuits Holding Register Bit Definitions
Upper Byte Lower Byte
Bit No. 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Bit
Name
Ack
Block
Prealarm Trouble InActive Active Enable Disable
Ack
Fire
Alarm
Active Event Type
(When Bit 11 is
set to 1, see
7.29
"CGW-MB Active
Event Code"
.)
When individual upper byte bits are set to 1, the following definitions apply:
Ack Block (Bit 15): All events on this zone/panel circuit, other than fire
alarm, are acknowledged.
Prealarm (Bit 14): The zone/panel circuit is in a prealarm state.
Trouble (Bit 13): The zone/panel circuit is in a trouble state.
InActive (Bit 12): The zone/panel circuit is not active.
Active (Bit 11): The zone/panel circuit is active and there will be an active
event type in the lower byte.
Enable (Bit 10): The zone/panel circuit is enabled.
Disable (Bit 9): The zone/panel circuit is disabled.
Ack Fire Alarm (Bit 8): The fire alarm on this zone/panel circuit is
acknowledged.