
6-1
Chapter 6. Communication Data
6 - 1
Basic Information for Handling Communication Data
Communication data types and formats
z
Types of communication data
Communication data can be categorized as follows:
•
Data related to the device
•
Data related to operating status
•
Data related to the instantaneous flow rate setpoint
•
Data related to total flow volume
•
Data related to function settings
•
Data related to parameter settings
z
Format of communication data
Communication data has one of the following formats:
•
Numeric data: Data that represents a number.
Read/write data does not have a decimal point. Data must be
combined or separated when it is sent or received.
The unit and the number of decimal places is determined for
each type of data.
6 - 2 Communication Data Table (p. 6-3)
•
Bit data: Data whose meaning is contained in a single bit Data must be
combined or separated when it is sent or received.
Handling Precautions
•
Numerical data and fixed-point data are 16 bits long at a maximum. If the data
specified by the user-defined unit and number of decimal places settings is
outside the 16-bit range (−32238 to +32237 or 0 to 65535), the maximum or
minimum value in the 16-bit range is read.
Communication data storage memory
z
Memory type
Communication data is stored in the memory of the device. This device has two
types of memory.
· RAM
: Data is erased when the power is turned off.
· NVRAM : Data is not erased if the power is turned off. (Write/read capacity:
10
12
/bytes)
Содержание F4Q
Страница 10: ......
Страница 14: ......
Страница 46: ......
Страница 66: ...7 2 Chapter 7 Device Operation by Communication Commands...
Страница 68: ......
Страница 70: ......
Страница 71: ...Revision History CP SP 1458E Printed Edn New Page No Description June 2021 1...
Страница 72: ......
Страница 73: ......