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Communication format
・
Format sent from the host (PLC, PC, etc.).
Add “@**” (“**” is the device address 01 to 63 set with AD-8551R) before the command you want to send to the
weighing device.
The AD-8551R with the matching device address outputs the command part excluding “@**” to the weighing
device (RS-232C) side.
・
Format received by the host (PLC,PC,etc.).
A command with “@**” (“**” is the device address 01 to 63 set by AD-8551R) added before the data output from
the weighing device is received.
■
Example of obtaining weighing data from a weighing instrument connected to device address 01.
@ 0 1 Q CR LF
@ 0 1 S T , + 1 2 3 4 . 5 6 7 _ _ g CR LF
Q CR
LF
S T , + 1 2 3 4 . 5 6 7 _ _ g CR LF
■
Example of re-zeroing the weighing instrument connected to device address 01.
@ 0 1 R CR LF
R CR LF
Caution
Some weighing devices do not respond to requests for weighing data during rezero processing. Wait for the rezero
process to finish and request the weighing data again.
Host (PLC, PC, etc.)
AD-8551R (device address 01)
Weighing device
Wait for display rewriting
：
After receiving the data request command,
the weighing device outputs the weighing value
at the timing of rewriting the display.
Host (PLC, PC, etc.)
AD-8551R (device address 01)
Weighing device
Timing of display rewriting of
the weighing device
