72 TGZ 040A through TGZ 190A OMM TGZ-1
BAS Interface
The BAS interface will use the supervisor port on the controller as a connection point.
Protocols Supported
The following building automation system (BAS) protocols are supported. It is possible to
change the building automation interface without loading different software.
BACnet
When protocol is set to BACnet, the baud rate and ident set points are not accessible. The
ident setting is locked at 1 for BACnet, and the baud rate is locked to 19200.
LONworks
With protocol set to LON, the baud rate and ident set points are not accessible. The ident
setting is locked at 1 for LON, and the baud rate is locked to 4800.
Modbus
With the protocol set to Modbus, the baud rate and ident set points are accessible.
Available Parameters
Types: A = Analog, I= Integer, D= Digital
I/O: I = Input only, O = Output only , I/O = Input/Output
Type Index I/O Description L
ON
W
ORKS
BACnet Modbus
A 1 I/O Network Cool LWT set point
x x x
A 2 O Active LWT set point
x x x
A 3 I/O Network limit set point
x x x
A 6 O Evap LWT
x x x
A 7 O Cond EWT
x x x
A 10 O Unit capacity (%)
x x x
A 11 I Network Cool LWT set point default
x
A 15 O Suction temp
x x x
A 16 O Evap sat temp
x x x
A 17 O Evap pressure
x x x
A 20 O Cond sat temp
x x x
A 21 O Cond pressure
x x x
A 39 O OAT
x x x
A 42 O Active Capacity Limit
x x x
A 50 I/O Network Ice LWT set point
x x x
I 1 O Active alarms 1
x x x
I 2 O Active alarms 2
x x x
I 3 O Active alarms 3
x x x
I 4 O Active alarms 4
x x x
I 5 O Active alarms 5
x x x
I 6 O Active alarms 6
x x x
I 7 O Active alarms 7
x x x
I 8 O Active alarms 8
x x x
I 9 O Active alarms 9
x x x
I 10 O Active alarms 10
x x x
I 11 O Active alarms 11
x x x
Continued next page.
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