II) V24/RS232/485 Interface - Single Analyzers and Systems

The codes determined in this manual are valid for the communication between

∙the TBCC and the front-end computer of an exhaust analyzer system.

∙the front-end computer of an exhaust analyzer system and the corresponding single devices.

∙the TBCC and the single exhaust analyzers connected directly to the TBCC.

∙the TBCC and other exhaust measuring or analyzing devices or equipments connected directly to the TBCC.

The floating point format is valid for the signal transfer.

The physical units are determined as follows:

∙Exhaust values: ppm

∙Temperatures: K

∙

Pressures:

Pa

∙

Flow:

l/min

The analyzer system or each analyzer can be set to the operation mode "MANUAL" selecting "REMOTE DISABLE" for the parameter "REMOTE EN-/DISABLE". This setup does not depend on the previous status of the system or analyzer.

If you select "REMOTE ENABLE", the mode "MANUAL" will retain for the moment, but the TBCC can call this operation mode with a control command. If the TBCC will setup the system/the analyzer to "REMOTE", the system/the analyzer will execute control commands from the TBCC. Precondition: The system/the analyzer is able to start the function selected.

In the mode "REMOTE DISABLE", the TBCC can only send read commands. It is only possible to read signals and status informations. If then the system or the analyzer is in the mode "MANUAL", it will ignore the control command from the TBCC. No change of the error status will be done in the response to the TBCC. Instead of that the response will display "MANUAL" as first date.

The same will be valid, if the parameter is "REMOTE ENABLE", but the TBCC did switch the system/the analyzer to the mode "MANUAL".

Otherwise, the operation mode can only be recognized by reading the status. This is also valid during a test is running.

90003752(1) [AK-Commands] 10/98

AK

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