Super Systems AC20 RS485 Modbus User Manual
Page 37
Page 37/59
TITLE: MODBUS/J-BUS Protocol for SSi’s- AC20 ENG. 824E REV. 1
WORDS FOR DEVICE IN CONFIGURATION MODE - PARAMETERS
“Inpt.” - Menu Conf. 1 - MAIN/AUXILIARY INPUT CONFIGURATION
ADDRESS
(decimal)
DEC.
Display
R
W
R
JBus
Mod
Bus
DESCRIPTION
FIGU-
RES
MNEM
CODE
E
A
D
I
T
E
2001
2000
Line frequency
Range:
0 = 50 Hz
1 = 60 Hz
N.A.
(“Ln.Fr”)
x
x
2002
2001
Primary variable selection
Range:
0 = Carbon potential as primary control
variable (the span limits are 0.00
to 2.00)
1 = Dew point as primary control variable
(the span limits are -100 to 100°F or
-75 to 40°C)
2 = Sensor output in mV as primary
control variable (the span limits are 0
to 1500 mV)
N.A.
(“PV.SL”)
x
x
2003
2002
Time constant for filter on probe sensor
input (in seconds)
0
(“Pb.FL”)
x
x
2004
2003
Input type and range value for
temperature input
Range:
1 = TC K From -100 to 1370 °C
2 = TC S From - 50 to 1760 °C
3 = TC R From - 50 to 1760 °C
4 = TC K From -150 to 2500 °F
5 = TC S From - 60 to 3200 °F
6 = TC R From - 60 to 3200 °F
N.A.
(“tP.In”)
x
x
2005
2004
Temperature input offset adjustment
(Value in Celsius or Fahrenheit as confi-
gured at Mbus word 2003)
0
(“OFSt”)
x
x
2006
2005
Time constant for filter on temperature
value (in seconds)
0
(“tP.FL”)
x
x
2007
2006
Auxiliary input function for carbon mono-
xide measurement
Range:
0 = Input not used
1 = Input used for CO measurement
N.A.
(“CO.In”)
x
x
2008
2007
Auxiliary input type
Range:
0 = 0
÷
20 mA
1 = 4
÷
20 mA
2 = 0
÷
5 V
3 = 1
÷
5 V
4 = 0
÷
10 V
5 = 2
÷
10 V
N.A.
(“CO.tP”)
x
x