Honeywell SV2 Series, User Manual, Page: 212 / 232

SV2 Series Safety Shut-off Valves
212 32-00029—02
Table 33. Holding Register Attributes.
Holding
Register Bit
Meaning
0 Register exists
1 Register is writable
2 Safety parameter register
3 Safety parameter register was changed. Need to perform Safety Parameters Verification process.
Table 34. Holding Register Mapping.
Address Type Valve
Model
Intelligence
Level
Description Data
Type
Content Range Default
Value
Dec Hex Min Max
73 49
General All Standard
Selectable units for temperature
Enum
0=Fahrenheit
1=Celsius
0 1
74 4A Selectable units for pressure
0=Mbar
1=PSI
2=inches WC
0 2
75 4B
Selectable units for volumetric
flow
0=Liters per hour (l/h)
1=Milliters per min (ml/ min)
2=Cubic feet per hour (CFH)
0 2
78 4E Selectable volumetric units
0=Milliliter (ml)
1=Cubic inch (cu in)
0 1
79 4F Remote reset U16
Will return number of remote resets
remaining. If value 0xAA55 is written and
remaining number of resets >0 then reset
action will be performed.
NOTE: All national and local codes must
be followed in regards to the allowance of
remote reset.
0 65535 5
90 5A SV2 valve Modbus slave address U16
Low byte contains address and high byte its
negated value, otherwise default address
is used.
0 65535
91 5B
Modbus communication baud
rate
U16
9600, 19200, 38400 or 57600 bps
Default value 38400
9600 57600 38400
148 94
Valve MV1 / MV2 LED
orientation indication change
Bool
0=Factory default; no change
1=MV1/MV2 LEDs swapped
0 1 0
149 95 Body size of attached valve Enum
Valve body size in inches
0=Unknown
Refer to Table 37.
0 3 0
255 FF
User entered Value Name
U16
2 bytes each = 2 ASCII characters
Maximum string length = 10 characters
If the registers contain invalid values (not
ASCII characters), the default name is
displayed
0 65535
256 100 U16 0 65535
257 101 U16 0 65535
258 102 U16 0 65535
259 103 U16 0 65535
285 11D
Date stamp selected
by user during setup
U16
Year 7
Month 4
Day 5
Year offset of 2000
0 65535