RBI FUTERA XLF Series, Control Manual

Page: 102 / 128

MODBUS COMMUNICATIONS HeatNet Control V3
Page 102
Figure 63 MODBUS Input/Output Variables (Read/Write)
Address Name Raw Data Type Scale Description Valid Values/Range
40012 SetYear 8 bit unsigned --- Set real time clock – year ( see SetClock ) 0
– 99
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
40018 DHWSetpoint 16 bit signed 1.0 DHW Setpoint 40 - 200 °F
40019 BMSGPMRate 16 bit unsigned 1.0
GPM rate to be loaded by BMS for
calculating how many boilers can run based
on flow.
0-1500 GPM
40020 BMSLimitBoilers 16 bit unsigned 1.0
Write the # of boilers that the BMS allows
to fire. If x boilers are available, x becomes
less than or equal to LimitBoilers.
0-16
Figure 64 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)