Command For Measured Data Read Out And Delete - Endress+Hauser memo-graph Version II Betriebsanleitung

Using the W command the operating parameters transmitted are the same as shown
in the display.
Attention:
After the last WRITE command a CODE-CLOSE (CC) command must be transmitted.!
Example for changing the time of the screen saver:
To unit: SOH 01 STX W12E0 0010 ETX BCC
From unit: SOH 01 STX 0 ETX BCC
Answer codes:
0..1: o.k.
2..11: Fault, only the answer code is transmitted.
0: Address can be edited.
1: Address can be "activated".
2: Address cannot be edited.
3: Address does not exist.
4: Option for this address not available.
5: Address not used at the moment.
6: Address cannot be operated using the serial link.
7: Not allowed characters in the parameters (e.g. time for screen saver transmitted
as 005A)
8: Parameter logically wrong (e.g. lower scale larger than high scale)
9: Invalid date format
10: Invalid time format
11: Value not available in selection list.
Measured data transmission sequence
To unit: SOH Unit address STX Command ETX BCC
From unit: SOH Unit address STX DX Data ETX BCC
To unit: ACK Data received send next package
NAK Data faulty repeat package
EOT End transmission
From unit: SOH Unit address STX DX Data ETX BCC
The last data package is constructed as follows:
From unit: SOH Unit address STX FX Data ETX BCC
To unit: ACK
The D after the STX indicates that data is being transmitted. The X is a continuous
number between 0 and 9. Using this number the receiver can monitor if all packages
have been received. The last block contains the character E after the STX. If the unit
has sent the last package and has received an ACK it returns to the basic position
and waits for an SOH.
Data read out command (DA)
Data from the memory is read out using the data read out command. Only new data
that has been stored since the last data delete (DD command) is transmitted. Data is
transmitted in a number of packages. A package length is approximately 200 Byte. It
is independent of the diskette and units memory data blocks. The packages are also
not synchronised to these data blocks, this means that a data block does not always
start at the beginning of a serial package.
8. For experienced users: Serial interface RS 232/RS 422/RS 485 transmission protocols
8.2 Command for
measured data read
out and delete
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