Aalborg I/O-485 - Manual (Page 11)

Host R Command:
R or r - This command tells the I/O Module to receive a new set point. Four
characters must be sent and one of these characters is always a decimal point.
If the set point does not fill all four characters trailing zeroes are added. A crc
is added if error checking is enabled, otherwise it is not sent. If the command
is not recognized “Bad Command” is returned.
An example of a valid command to a unit with address >:
> > R 1.00 crc CR
> > r 1.00 crc CR
An example of an invalid command to a unit with address r:
> r W 1.00 crc CR
The reply format is:
#Bad Command crc CR
If the command is not received no response is sent. The module sends “OK”
if the command was received and understood.
The reply format is:
#OK crc CR
Host C Command:
C or c - This command tells the I/O Module to enter calibration mode.
Calibration instructions are sent to the terminal display. See Calibrating the I/O
Module for calibration procedure. If the command is received and understood
the unit enters calibration mode.
An example of a valid command to a unit with address @:
> @ C crc CR
> @ c crc CR
If the command is not recognized “Bad Command” is returned.
An example of an invalid command to a unit with address @:
> @ q crc CR
The reply format is:
#Bad Command crc CR
Host G Command:
G or g - This command tells the I/O Module to accept a global command. This
is included for compatibility with the RS-485 version of this unit. The syntax is
the same as the R command except the address is 0 and no response is sent
by the module.
An example of a valid command is:
> 0 G crc CR
> 0 g c crc CR
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