Annex A - BACnet and Modbus Objects
The E
Point can be factory configured with optional communication
3
types: BACnet or Modbus. Each of these communication protocols has
its own specific objects.
Honeywell recommends appropriate measures be taken to ensure
security since BACnet and Modbus are not inherently secure. The
installer takes all responsibility for protecting the controller from
malicious network traffic.
BACnet Configuration
The E
Device Binding (WHOIS/IAM), which is part of BACnet protocols
DM-DDB-B and DM-DOB-B (see the
Conformance Statement
BACnet Objects Descriptions
Each measurement type has Analog Input (AI), Analog Value (AV),
Binary Output (BO) and Binary Value (BV) objects. The table below
defines each object and lists the default setting:
Type
Name
AI
Conc.
AV
Alr A
AV
Hyst A
AV
Alr B
AV
Hyst B
BV
Hi
Temp
Fault
BO
Relay
BO
Buzzer
36
Point is an MSTP Master Device and supports Dynamic
3
The gas reading
The level at which Alarm A will be triggered
Alarm A hysteresis offset (Alr A + Hyst A = level at
which alarm is deactivated)
The level at which Alarm B is triggered
Alarm B hysteresis offset (Alr B + Hyst B = level at
which alarm is deactivated)
Temperature High Level limit
Actual buzzer status (on or off)
Actual relay status (on or off)
Protocol Implementation
section for details).
Description
E
Point Network Gas Monitor User Manual
3
Read/
Write
R
R/W
R/W
R/W
R/W
R
R/W
R/W