Thermo 42i - Record Layout Definition

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C-Link Protocol Commands

Record Layout Definition

B-44 Model 42i Low Source Instruction Manual Thermo Electron Corporation

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

Record Layout

Definition

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 displays

In operation, values are read in 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 (e.g., 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).

Format Specifier for ASCII

Responses

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.

Format Specifier for

Binary Responses

The second line of the Layout response is the binary parameter list for

parsing the fields from a binary response. Parameters MUST be separated by

spaces, and the line is terminated by a '\n'. Valid fields are:

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