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Modbus communication
A.4 Modbus register mapping
SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
129
The device provides means to remap 20 Modbus registers.
Table A- 3
Modbus register mapping
Modbus
register
Data type /
Size in
bytes
Parameter
Description
Default value
[units]
(units regis-
ter)
Value range /
Setting op-
tions
Access
level
10448
Unsigned /
4
Enable mapping
Activation/deactivation of
the register mapping. A set
bit means that the mapping
pair is activated, a cleared
bit that the mapping pair is
deactivated.
Bit 0:
Requested register 1 / Tar-
get register 1
…
Bit 19:
Requested register 20 /
Target register 20
0
0 - 1048575
Read /
write
10450
Unsigned /
2
Register 1 source Modbus register that ap-
pears within Modbus re-
quest is redirected to the
parameter specified by
Target register 1
65535
0 - 65535
Read /
write
10451
Unsigned /
2
Register 1 target
Register of an existing
product parameter to which
a Modbus request is redi-
rected
65535
0 - 65535
Read /
write
...
10488
Unsigned /
2
Register 20 source Modbus register that ap-
pears within Modbus re-
quest is redirected to the
parameter specified by
Target register 20
65535
0 - 65535
Read /
write
10489
Unsigned /
2
Register 20 target Register of an existing
product parameter to which
a Modbus request is redi-
rected
65535
0 - 65535
Read /
write
Содержание SITRANS F Series
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