FEC920: USER GUIDE
Page 181
September 18
8.3.2 Mapping to Virtual Channels
BACnet objects are mapped to
FEC920
virtual channels as shown in Table 3.
A maximum of 30 virtual channel objects are supported.
Table 3: BACnet Object Representation of Virtual Channels
Input Channel 3
Channel.3.Main.PV
AI
PV
Channel.3.Main.PV
R
PV Status
Channel.3.Main.Status
Channel.3.Alarm1.Threshold
AV
AL1 Threshold
Channel.3.Alarm1.Threshold
R/W
Channel.3.Alarm1.Status
MSI
AL1 Status
Channel.3.Alarm1.Status
R
Channel.3.Alarm2.Threshold
AV
AL2 Threshold
Channel.3.Alarm2.Threshold
R/W
Channel.3.Alarm2.Status
MSI
AL2 Status
Channel.3.Alarm2.Status
R
Input Channel 4
Channel.4.Main.PV
AI
PV
Channel.4.Main.PV
R
PV Status
Channel.4.Main.Status
Channel.4.Alarm1.Threshold
AV
AL1 Threshold
Channel.4.Alarm1.Threshold
R/W
Channel.4.Alarm1.Status
MSI
AL1 Status
Channel.4.Alarm1.Status
R
Channel.4.Alarm2.Threshold
AV
AL2 Threshold
Channel.4.Alarm2.Threshold
R/W
Channel.4.Alarm2.Status
MSI
AL2 Status
Channel.4.Alarm2.Status
R
Input Channel 5-8
Instantiated similar to above (if required)
Digital I/O
DigitalIO.DI_LALC.Output
BI
Dig In A
DigitalIO.DI_LALC.Output
R
DigitalIO.DI_LBLC.Output
BI
Dig In B
DigitalIO.DI_LBLC.Output
R
DigitalIO.1A1B.Output
BI
I/O 1 - Output
DigitalIO.1A1B.Output
R
DigitalIO.1A1B.PV
AI
I/O 1 - Input
DigitalIO.1A1B.PV
R
DigitalIO.2A2B.Output
BI
I/O 2 - Output
DigitalIO.2A2B.Output
R
DigitalIO.2A2B.PV
AI
I/O 2 - Input
DigitalIO.2A2B.PV
R
DigitalIO.3A3B.Output
BI
I/O 3 - Output
DigitalIO.3A3B.Output
R
DigitalIO.3A3B.PV
AI
I/O 3 - Input
DigitalIO.3A3B.PV
R
DigitalIO.RELAY_4AC.Output
BI
Relay Out 4
DigitalIO.RELAY_4AC.Output
R
DigitalIO.RELAY_5AC.Output
BI
Relay Out 5
DigitalIO.RELAY_5AC.Output
R
Object Name
Type
Data Parameter
Equivalent Modbus Path
R/W
Virtual Channel (n, m)
VirtualChannel.n.Main.PV
AI
PV
VirtualChannel.n.Main.PV
R
PV Status
VirtualChannel.n.Main.Status
VirtualChannel.n.Alarm1.Threshold
AV
AL1 Threshold
VirtualChannel.n.Alarm1.Threshold
R/W
VirtualChannel.n.Alarm1.Status
MSI
AL1 Status
VirtualChannel.n.Alarm1.Status
R
VirtualChannel.n.Alarm2.Threshold
AV
AL2 Threshold
VirtualChannel.n.Alarm2.Threshold
R/W
VirtualChannel.n.Alarm2.Status
MSI
AL2 Status
VirtualChannel.n.Alarm2.Status
R
Object Name
Type
Data Parameter
Equivalent Modbus Path
R/W
A5E45696052A Rev-AA