Yokogawa Value Series FX1000 - Manual (Page 179)

6-5
IM 04L21B01-17EN
Specifications
1
2
3
4
5
6
App
Index
• Writing the Computed Values of the Computation Channels
• The computation function is an option (/M1, /PM1, or /PWR1).
• Writes the computed values of the computation channels to the server registers.
• The data type of computed values is signed 32-bit integer.
W-M
40001 to 49999
400001 to 465536
INT 16, UINT 16,
INT 32_B, INT 32_L
Register
Server
Data type Command
type
Write FLOAT_B, FLOAT_L
FX1000
Computation channel
Number: 101 to 124
Data type: 32-bit signed integer
When the Data Type of the Write Destination Server Is Identical (INT32_B
or INT32_L)
The values can be written directly including special data (See “Special Data Values” in
section 4.3). Perform data processing on the slave device.
When the Data Types of the Write Destination Servers Are Different
(INT16, UINT16, FLOAT_L or FLOAT_B)
INT16: A value in the range of –32768 to 32767 (excluding the decimal point) can be
written. If lower than –32768 the value reverts to –32768, and if higher than
32767 it reverts to 32767.
UINT16: A value in the range of 0 to 65535 (excluding the decimal point) can be
written. Including special values, if the value is lower than 0, it reverts to 0,
and if the value is higher than 65535, it reverts to 65535.
FLOAT: For data other than special data, the values that are calculated from the
decimal point information set on each channel are written. For special data
values, see the “Special values” table below.
Computed value Data type of the write destination
INT16 UINT16 FLOAT
More than 32767 32767 Calculated from
the decimal point
information set on
each channel
-32768 to 32767 –32768 to 32767
Less than -32767 –32768
More than 65535 65535
0 to 65535 0 to 65535
Less than 0 0
Special values
Computed value Data type of the write destination
INT16 UINT16 FLOAT
+ Over 32767 65535 7f800000H (+ ∞)
Burnout (Up) 7f800006H (Nan)
- Over
–32768 0
ff800000H (– ∞)
Burnout (Down) ff800006H (Nan)
Skip ff800002H (Nan)
Error ff800004H (Nan)
Undefined ff800005H (Nan)
6.3 Modbus Protocol Specifications