FGH 2000 Series - Read Messages; Set Instrument Status Messages; Message Header

SERIES 2000 COMMUNICATIONS MANUAL 5
M41 Issue 1.1
messages to the instrument may have the fields separated by spaces. These spaces will be
ignored. Messages from the instrument will not contain spaces. Eg.
W 45 C 0123 <CR>
will attempt to write 123 to the local set point as well as
W45C0123<CR>
The <CR> at the end of the message is a carriage return. (Hex 0D). Each message written
to the instrument must be terminated with, and each message from the instrument will be
terminated with a carriage return.
3.1.2 Read messages
Read messages to the instrument take the following form.
RAAPSS<CR>
where
R
= read message header
AA
= instrument address
P
= parameter code to be read
SS
= segment number (P2000 Only)
Again the message must be terminated with a <CR>, and spaces may be included if
desired.
3.1.3 Set instrument status messages
Set messages to the instrument take the following form.
SAAC<CR>
where
S
= set message header
AA
= instrument address
C
= set parameter code to be performed
Again the message must be terminated with a <CR>, and spaces may be included if
desired.
3.2 Message header.
This may be;
ASCII
R
signifying a Read
ASCII
W
signifying a Write
ASCII
S
signifying a Set.
The
R
header is used whenever data is being read from the instrument. When this header
is used the data field is absent. The
W
header is used to write data to the instrument. The
S
header is used to set the status of the instrument.