Common channel 5 and 6 RTD configuration settings
Table A-68 Common channel 5 and 6 RTD configuration settings
Modbus
register
Data type /
Size in bytes
Parameter Description Default value
[units]
(units register)
Value range /
Setting options
Access
level
2100 Unsigned / 2 RTD type Type of connected
RTDs.
Configuration applies
to channel 5 and chan‐
nel 6.
0
● 0: 100 ohm RTD
● 1: 500 ohm RTD
● 2: 1000 ohm RTD
Read /
write
2101 Unsigned / 2 RTD wire con‐
figuration
Wire configuration of
connected RTDs.
Configuration applies
to channel 5 and chan‐
nel 6.
0
● 0: 2-wire RTD
● 1: 3-wire RTD
● 2: 4-wire RTD
Read /
write
2034 Float / 4 Upper range
value pressure
Upper process pres‐
sure value that is map‐
ped to the upper nomi‐
nal range boundary se‐
lected by current mode
(2020). Applicable if
process value (2002) =
1.
700000.0
[Pa]
(7548)
100000.0 - 100000000.0 Read /
write
2032 Float / 4 Lower range
value pressure
Lower process pres‐
sure value that is map‐
ped to the lower nomi‐
nal range boundary se‐
lected by current mode
(9306). Applicable if
process value (9302) =
1.
700000.0
[Pa]
(7548)
100000.0 - 100000000.0 Read /
write
2058 Float / 4 Upper range
value density
Upper process density
value that is mapped to
the upper nominal
range boundary selec‐
ted by current mode
(2020). Applicable if
process value (2002) =
2.
1000.0
[kg/m
3
]
(7600)
0.08 - 10000.0 Read /
write
2056 Float / 4 Lower range
value density
Lower process density
value that is mapped to
the lower nominal
range boundary selec‐
ted by current mode
(2020). Applicable if
process value (2002) =
2.
1000.0
[kg/m
3
]
(7600)
0.08 - 10000.0 Read /
write
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
Operating Instructions, 08/2018, A5E37367739-AD 263