C-Link Protocol Commands
Record Layout Definition
B-46
Model 15
i
Instruction Manual
Thermo Fisher Scientific
These commands set the relay logic to normally open or closed for relay
number
value
, where
value
is the relay between 1 and 16. The following
example sets the relay no 1 logic to normally open.
Note
If the command is sent without an appended relay number, then all
the relays are assigned the set logic of normally open/closed.
▲
Send:
set relay open 1
Receive:
set relay open 1 ok
The erec, lrec, and srec layouts contain the following:
●
A format specifier for parsing ASCII responses
●
A format specifier for parsing binary responses
In addition to these, the erec layout contains:
●
A format specifier for producing the front panel display screens
Values are read using either the ASCII or binary format specifiers and
converted to uniform internal representations (32-bit floats or 32-bit
integers). These values are converted into text for display on the screen
using the format specifier for the front panel display. Normally, the
specifier used to parse a particular datum from the input stream will be
strongly related to the specifier used to display it (such as, all of the floating
point inputs will be displayed with an 'f' output specifier, and all of the
integer inputs will be displayed with a 'd' specifier).
The first line of the layout response is the scanf-like parameter list for
parsing the fields from an ASCII erec response. Parameters are separated by
spaces and the line is terminated by a “\n” (the normal line separator
character). Valid fields are:
%s - parse a string
%d - parse a decimal number
%ld - parse a long (32-bit) decimal number
%f - parse a floating point number
%x - parse a hexadecimal number
%lx - parse a long (32-bit) hex number
%* - ignore the field
Note
Signed versus unsigned for the integer values does not matter; it is
handled automatically.
▲
Record Layout
Definition
Format Specifier for
ASCII Responses
