HeatNet Smith Series, User Manual, Page: 55 / 82

COMMUNICATIONS HeatNet Control REV 1.38-1
Page 55
Figure 38 MODBUS Input/Output Variables (Read/Write)
Address Name Raw Data Type Scale
Description Valid
Values/Range
40013 SetHour 8 bit unsigned --- Set real time clock – hour ( see SetClock ) 0 – 23
40014 SetMinute 8 bit unsigned --- Set real time clock – minute ( see SetClock ) 0 – 59
40015 SetSecond 8 bit unsigned ---
Set real time clock – second ( see
SetClock )
0 – 59
40016 SetWeekday 8 bit unsigned ---
Set real time clock – weekday ( see
SetClock )
1 (Monday) - 7
(Sunday)
40017 SetClock 1 bit unsigned ---
Set (write) the real time clock.
Do Not Write more than once per minute
To write the real time clock, the system
variables (SetMonth, SetMonth, SetDay,
SetYear, SetHour, SetMinute, SetSecond,
SetWeekday) must first be loaded with the
correct date and time. Then, a 1 must be
written to the state portion of this system
variable to write the new date and time to
the system clock.
0 = no action
1 = set/write the
clock
Figure 39 MODBUS Input Variables (Read Only)
Address Name
Raw Data
Type
Scale Description Valid Values/Range
30001 BoilersOn
8 bit
unsigned
---
The number of boilers currently
running.
0 – 16
30002 Modulation
8 bit
unsigned
0.01 Current system modulation level. 0 – 100 %
30003 HeaderTemp
16 bit
signed
0.01 Header / System temperature. 32 – 250 °F
30004 SupplyTemp
16 bit
signed
0.01 Supply temperature. 32 – 250 °F
30005 ReturnTemp
16 bit
signed
0.01 Return temperature. 32 – 250 °F
30006 OutsideTemp
16 bit
signed
0.01 Outside air temperature. -40 – 250 °F
30007 Spare1
16 bit
signed
--- Raw A/D value from spare 1 input. -32768 to 32767
30008 Spare2
16 bit
signed
--- Raw A/D value from spare 2 input. -32768 to 32767
30009 Month
8 bit
unsigned
--- Real time clock month.
0 (January) - 11
(December)
30010 Day
8 bit
unsigned
--- Real time clock day. 1 – 31
30011 Year
8 bit
unsigned
--- Real time clock year. 0 – 99
30012 Hour
8 bit
unsigned
--- Real time clock hour. 0 – 23
30013 Minute
8 bit
unsigned
--- Real time clock minute. 0 – 59
30014 Second
8 bit
unsigned
---
Real time clock second. 0 – 59
30015 Weekday
8 bit
unsigned
---
Real time clock weekday. 1 (Monday) – 7 (Sunday)
30016 Boiler01Status1 16 bit --- Boiler (1 – 16) status flags. These See the “BoilerStatus1”