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WIKA operating instructions pneumatic high pressure controller, model CPC7000
0019104001D 10/2018EN
EN
7. Remote Operation
7.7 Mensor Command Set
This Mensor command set is the default on the CPC7000. For queries (ending with a ?), the Data column represents the response
of the CPC7000. All response strings begin with a space character or an “E” representing that there is an error in the error queue.
All response strings are terminated with a <CR> and a <LF>. The error queue holds the last 10 errors identified.
For all commands (no ?), the data column represents the required parameters to be sent to the CPC7000 following the string in the
command column. For any command that requires multiple parameters to be sent, the parameters must be separated by commas.
7.8 Command and Query Format
Commands must be sent in ASCII format and terminated with either a carriage return (<cr>), linefeed (<lf>), or both. Commands
are not case sensitive. Each query returns a response. If an error is detected the response will include an error flag.
Command or Query field: Unless otherwise specified, commands are typically converted to queries by appending a question mark
to the command. Table 6.11 lists all of the CPC7000 command or query keywords.
Data field: The data field is either in ASCII {string} or numeric {value} form. In the case of multiple data fields, commas are required
to separate the fields. Queries do not have a data field. String (text) or value (numeric) data are acceptable in any of the following
formats:
Examples of {string} data: ON, OFF, mBar, inHg
Examples of {value} data: 1, 1.0, -5.678, 25.68324e-5
7.9 Command Set Definitions
In this manual a data entry made up of alpha characters is defined as a string, as opposed to data containing only numbers, such
as “Enter 1 for ON or 0 for OFF” where 1 and 0 are defined as values.
Command
: Any command or query listed in Table 6.11. For commands that take boolean data the following strings are
acceptable:
0 1
False True
No
Yes
Off
On
Separator
: Space (SP).
Data:
ASCII representations of numbers, {value}, or alpha characters, {string}, data as defined above. When sending code a literal
variable replaces the brackets and the enclosed character(s) shown in the following examples.
Termination:
Linefeed (LF) or carriage return (CR) is used to signal the end of a command statement. For IEEE-488.2 operation
“EOI” is an acceptable alternative.
Always send commands in one of the following formats:
1. [Command] [Termination];
2. [Command] [Separator] [Data] [Termination];
3. Queries are special instructions in the form: [Command?] [Termination] where the question mark, “?”, immediately precedes the
terminator.
When a valid query is received, the CPC7000 will return {data} terminated by CR and LF. Floating point data is returned in the
current engineering units in exponential format.
7.10 Output Formats
Pressure readings are returned in exponential notation in a format according to the OUTFORM command as follows.
Output formats
1. <sp> pressure value <cr><lf>
2. <sp> pressure, units, mode <cr><lf>
3. <sp> pressure, pressure rate <cr><lf>
4. <sp> pressure, minimum peak, maximum peak<cr><lf>
5. <sp> pressure, active sensor (P or S) active turndown (1-2)<cr><lf>
6. <sp> pressure, control point, “stable” or “slewing”<cr><lf>
7. <sp> pressure, “no barometer” or baro reading<cr><lf
