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Appendix B - Modbus RTU Mappings
Appendix B.1 - SMVector Modbus RTU mappings
The following shows SMVector Modbus RTU mappings to BACnet MS/TP, BACnet/IP, and Metasys N2.
Point name
BACnet
object type
BACnet
object ID
N2 data
type
N2 point
address
Drive Control Stop Drive
BV
1
DO
1
Drive Control Start Drive
BV
2
DO
2
Drive Control Inhibit
BV
3
DO
3
Drive Control Set Reverse
BV
4
DO
4
Drive Control Set Forward
BV
5
DO
5
Drive Identity
AI
6
AI
6
Drive Status Stop/Run
BI
7
DI
7
Drive Status Commanded Direction BI
8
DI
8
Drive Status Actual Direction
BI
9
DI
9
Drive Status Network Enable
BI
10
DI
10
Drive Status Control
AI
11
AI
11
Drive Status Network Control
BI
12
DI
12
Actual Output Frequency
AI
13
AI
13
Fault Status
AI
14
AI
14
Commanded Direction
AI
15
AI
15
Network Freq Command
AV
16
AO
16
Drive Unlock
AV
17
AO
17
Minimum Output Freq
AV
18
AO
18
Maximum Output Freq
AV
19
AO
19
Appendix B.2 - Delta VFD E Modbus RTU mappings
The following shows Delta VFD E Modbus RTU mappings to BACnet MS/TP, BACnet/IP, and Metasys N2.
Point name
BACnet
object type
BACnet
object ID
N2 data
type
N2 point
address
Drive Identity Code
AI
1
AI
1
Maximum Output Freq
AV
2
AO
2
Minimum Output Freq
AV
3
AO
3
VFD Start_Stop
AV
4
AO
4
VFD Fwd_Rev_Toggle
AV
5
AO
5
Frequency Command
AV
6
AO
6
Activate External Fault
BV
7
DO
7
Reset All Faults
BV
8
DO
8
Drive Status Stop/Run
AI
9
AI
9
Drive Status Fwd/Rev
AI
10
AI
10
Actual Frequency
AI
11
AI
11
Fault Status
AI
12
AI
12
