Configuring Temperature Controllers

The following three GAMRY.INI sections describe three different temperature controllers.

[TDC_1]

LABEL=TDC2

TYPE=2

PORT=1

MODE=COM1:9600,O,7,1

[TDC_2]

LABEL=TDC1

TYPE=1

[TDC_3]

LABEL=Bath

TYPE=3

PORT=1

MODE=COM4:9600,N,8,1

All three sections came from one GAMRY.INI file. A CPT Setup screen for this system shows three Temp Controller entries, labeled TDC2, TDC1 and Bath.

Examine the [TDC_1] section. As you can see from its LABEL, this section describes a TDC2 Temperature Controller. The LABEL can be any string of eight characters or less.

The TYPE field, which identifies the type of temperature controller, contains a 2. This is the code for a TDC2. Other types of temperature controllers have different TYPE codes.

The PORT and MODE fields identify the COM port and communications parameters used to talk to this TDC2. In this example, the TDC2 is connected to COM1, which is running at 9600 baud, with odd parity, 7 data bits and 1 stop bit. The MODE field is identical to the DOS Mode command. See the DOS manual for a full description of this command including the allowed parameter settings.

Examine the other two sections.

The temperature controller at [TDC_2] is a TDC1. It has a TYPE code of 1. It does not use an RS-232 connection so no PORT or MODE fields are required.

The temperature controller at [TDC_3] is an RS-232-controlled recirculating water bath. Gamry Instruments may provide support for a single specific bath in the future. It will have a TYPE code of 3. It will require PORT and MODE fields, which are specified identically to those for the TDC2.

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