Point Status Holding Registers - Honeywell CGW-MB Installation And User Manual

Register Mapping
• Lower Byte: Primarily used when bit 11 in the upper byte is a '1', which means the
point is active. Any Fire, Security, Critical Process, Medical, Mass Notification, or
Supervisory alarm state identifies the active state in this CLSS Gateway mainboard.
Refer to CGW-MB Active Event Code
All of the lower byte will be zeroes if the device is not in an active state.
If the point is not present in the panel programming, all bits in the Lower Byte will have a
'1' or the value FFH, but the Upper Byte will have a '0'.
Specifically, the lower byte contains the actual active event for this point. 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 point 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'.
Bit
15 14
No.
Ack
Bit
Prealarm
Block
Name
When individual upper byte bits are set to 1, the following definitions
apply:
Ack Block (Bit 15): All events on this point, other than fire alarm, are
acknowledged. Not applicable for zones.
Prealarm (Bit 14): The channel is in a prealarm state. Not applicable for
zones.
Trouble (Bit 13): The channel is in a trouble state. Not applicable for
zones.
InActive (Bit 12): The channel is not active.
Active (Bit 11): The channel is active and there will be an active event type
in the lower byte.
Enable (Bit 10): The channel is enabled.
Disable (Bit 9): The channel is disabled.
Ack Fire Alarm (Bit 8): The fire alarm on this channel is acknowledged.
Not applicable for zones.

Point Status Holding Registers

Each of the point 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 point.
• 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',
information about the active point. The lower byte will be all 0's if the device is not in an
active state.
The only possible active event type for zones is Non-Fire Activation (71H).
Active Event Code" on page 73.
Refer to
Table 7.15, "Point Status Holding Register Channel Addresses"
holding register addresses and the channels. Each holding register range is for detectors
or modules.
CGW-MB Installation and Users' Manual | P/N:LS10248-000HW-E | REV.G | JUL/31/2022
Table 7.14: Channel Status Holding Register: Bit Definitions
Upper Byte
13 12
Trouble InActive
See "CGW-MB Active Event Code" on page 73.
Table 7.15: Point Status Holding Register Channel Addresses
Start Address End Address
400001 400300
for detailed information about the active point.
11 10 9
Active Enable Disable
Address
L1D1–L1D300
Modbus Communications
Lower Byte
8 7 6 5 4 3 2 1 0
Ack
Fire
Alarm
Active Event Code
(When Bit 11 is set
to 1, see
7.29 "CGW-MB
Active Event Code"
for detailed
See "CGW-MB
for details of the
.)
59