Yokogawa Touch Screen GP20 - Manual (Page 97)

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IM 04L51B01-17EN
Commands and Responses
1
2
App
2.11 Format of the Data Block of Binary Output
This section explains the data that is stored in the data block in the binary output of data
output response.
2.11.1 Most Recent Channel Data (FData)
The output in response to the command “FData,1” is shown below. Outputs the most recent
I/O channel, math channel, and communication channel data.
Configuration
The figure below shows the structure of the output data. Data is stored in “Block 1.”
Number of blocks Number of bytes
2 bytes 2 bytes
Block 1
Number of Blocks (16 bits)
Always 1.
Number of Bytes (16 bits)
Stores the number of bytes of block 1.
Block 1
The figure below shows the structure of block 1.
Year Month Day Hour Min. Sec. Millisecond
Additional information
Data type
Channel type
Status Channel number Alarm Data value
1 byte 1 byte 1 byte 1 byte 1 byte 1 byte 2 bytes
Status Channel number Alarm Data value
...
4 bytes
8 bytes
12 bytes
Data Time
Item (Number of Bits) Value
Year (8 bits) 0 to 99
Month (8 bits) 1 to 12
Day (8 bits) 1 to 31
Hour (8 bits) 0 to 23
Minute (8 bits) 0 to 59
Second (8 bits) 0 to 59
Millisecond (16 bits) 0 to 999