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TEMPTRAC INTERFACE GUIDE, GATEWAY SETUP AND POINTS LIST
Page 18 of 30
PV7069-T 03/17
Part number 129209
TYPICAL POINTS:
Alarm_AL3
Read Only
Status of digital input #3 Alarm
MODBUS
Holding Register
3328
43329:12
BACNET
Alarm_AL3
332962
LONWORKS
nvoAlarm_AL3_#
Digital Input #3 alarm. On some products, this is a general failure to operate alarm. See product specific
information. This is Bit 12 of the ALARM STATUS ALL word.
Flashes ‘AL3’ or ‘HP’ on TempTrac display. In
BACNET and LONWORKS, this is broken out into a state logic point.
For MODBUS ALARMS && 0x1000 = 0x1000 Alarm is active. = 0x0000 Alarm is not active.
Com Status
Read Only
Communication Status bit
MODBUS
Input Register
NA
NA
BACNET
Gateway_TT_Com_OK
200
LONWORKS
nvoGwyTTCmOK_#
NOTE: This point is not generated by the heater; it is generated internally by the gateway. It is a status of the
communication connection between the gateway and the heater. If active (GOOD), the gateway is talking to the
heater. If inactive (NOT_PRESENT) then the gateway does not have good communication with the heater. This
point may take up to 3 minutes to register properly after communication is established or interrupted. If this
value if reading NOT_PRESENT, then no all over values are suspect, as the device is not communicating.
Generally the Gateway will hold the last value received. The only way to ensure you have the current values
from the heater is to verify this point is ACTIVE as well.
ALL POINTS INCLUDING ADVANCED:
Points listed below that are not in the TYPICAL POINTS are provided for advanced interface and for
custom applications. Contact factory for additional information.
ALL POINTS INCLUDING ADVANCE:
Control_CNT
Write
Enable Heater 257=on 1 = off
MODBUS
Holding Register
1280
41281
BACNET
Enable
128100
LONWORKS
nvoCtrl_CNT_#
This can be used to prevent the heater from heating via communication. 257 or 0X0101 = on, 1 or 0x0000 = off
The resister cannot be read. The register should only be written to with the values 257 and 1, as it has other
undocumented functions.
Setpoint_St1
Read/Write
System Setpoint
MODBUS
Holding Register
768
40769
BACNET
Setpoint_St1
76900
Deg-F
LONWORKS
nvoSP_St1_#
nviSP_St1_#
Deg_F
This is the setpoint for the heater.
Setpoint_St1 C
Read/Write
System Setpoint
MODBUS
BACNET
Setpoint_St1_C
76900
Deg-C
LONWORKS
Special BACNET point that converts the Setpoint value to degrees C in the gateway. Not available in
LONWORKS or MODBUS.