Yokogawa Value Series FX1000 - Manual (Page 178)

6-4
IM 04L21B01-17EN
Command
Command type: R-M, W, W-M
Number of commands: Set up to 16 commands
Data type:
See the table below.
Symbol Description
INT16 16-bit signed integer
UINT16 16-bit unsigned integer
INT32_B 32-bit signed integer (higher and lower order)
INT32_L 32-bit signed integer (lower and higher order)
UINT32_B 32-bit unsigned integer (higher and lower order)
UINT32_L 32-bit unsigned integer (lower and higher order)
FLOAT_B 32-bit floating point (higher and lower order)
FLOAT_L 32-bit floating point (lower and higher order)
• Reading Values into Communication Input Data
• Reads values from the server register into the communication input data of the FX.
• Communication input data is an option (/M1, /PM1, or /PWR1).
• The data type of the communication input data is 32-bit floating point.
• You can display communication input data on a computation channel by including
the data in the equation of an FX computation channel (/M1, /PM1, or /PWR1
option). The measurement range and unit are also set using the computation
channel.
R-M
30001 to 39999
300001 to 365536
40001 to 49999
400001 to 465536
INT 16, UINT 16,
INT 32_B, INT 32_L,
UINT 32_B, UINT 32_L,
FLOAT_B, FLOAT_L
Register
Server
Data type Command
type
Read
FX1000
Communication input data
Number: C01 to C24
Data type: 32-bit floating point
• Writing the Measured Values of the Measurement Channels
• Writes the measured values of the measurement channels to the server registers.
• The data type of measured values is signed 16-bit integer.
When the Data Types of the Write Destination Servers Are Identical
(INT16)
• 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
(FLOAT_L or FLOAT_B)
• 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, see “Writing the Computed Values of the Computation Channels.”
The FLOAT values in the Special values table are used.
W
40001 to 49999
400001 to 465536
INT 16
Measurement channel
Number: 001 to 012 (FX1000)
Data type: 16 bit signed integer
Register
Server
Data type Command
type
FX1000
Write
FLOAT_B, FLOAT_L
6.3 Modbus Protocol Specifications