Rev A: 0611
5/98
Remote Interfaces
TP04100A Interface
&
Applications
4-8
Host Interface Commands
The Temptronic TP04100A Thennostream System host interface instruction set was designed to be in
substantial compliance with IEEE Standard 488.2-1987 ("IEEE Standard Codes, Formats, Protocols, and
Common Commands For Use with ANSUIEEE Std.488.2-1987 IEEE Standard Digital Interface for
Programmable Instrumentation"). Please refer to that standard for general programming information.
With a few exceptions the IEEE-488.2 and serial versions of the TP04100A host interface use the same
instructions.
Several instructions (listed below) were added to the serial version to compensate for the lack of dedicated
hardware lines. The serial version does not transmit until it has a complete response message (a string
terminated by a line feed) to send to the host. The interface output buffer is 250 bytes in size. The "message
available" bit in the status byte is always sent
as
0 (zero) when using the serial interface.
The host interface is functional in both "Manual" and "Program" operation modes.
The temperature setpoint, window, ramp rate, soak time, and cycle count values associated with a particular
setpoint number in "Manual" mode are distinct from the values for the like-numbered setpoint in the
"Program" mode. The SETP, WNDW, RAMP, SOAK, CYCC commands
and
their corresponding queries act
on the setup for the operation mode currently in use ("Manual" or "Program").
Page 4-9
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