(h)
SELECTING THE MODE OF OPERATION
Before operating in the desired mode the
I/O
has to be calibrated in the
same mode.
To set the unit to operate in 0 - 5V mode install shorting plugs between
pins 1 and 2 on JP2, JP3, JP4 and, JP5. If 4 - 20mA current mode is
desired install the shorting plugs between pins 2 and 3 on JP2, JP3, JP4
and, JP5. See Jumper Definitions for more detail.
(i)
COMMANDS
The following is a list of the valid commands, command format and, unit
response.
Host Command format:
> address command X X X X crc CR
Where:
> message start character
Address unit address is any single printable ASCII
command character one of the commands from below
X X X X
optional four ASCII characters, used by the unit to set
the analog output
crc
optional error checking characters, the crc is composed
of two ASCII characters
CR
ASCII carriage return character
There are no spaces in the transmitted command, spaces are inserted here only to
make the command easier to read. If a crc is not used it is not sent in the com-
mand line. Commands sent by the host are preceded with a start character sym-
bol, >. All commands are terminated with a CR. If data bytes are not required by
the command they are not included in the command line.
I/O Module Response format:
# X X X X X crc CR
Where:
#
message start character
command
one of the commands listed below
X X X X X
up to five ASCII characters, used to report
the analog input of the unit back to the host
crc
optional error checking characters, the crc is
composed of two ASCII characters
CR
ASCII carriage return character
There are no spaces in the transmitted response, spaces are inserted here only to
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