Telemetry Tables - Thermo Scientific 3403 Manual

Section 8
Appendices
Test 14/E (Communications Test) This test sends "COMM TEST\r\n\r\n" to the serial port to verify correct
operation of the communications interface. If multiple "daisy-chain" jacks
are on the unit, all should be tested.
Note The "\r\n\r\n" are carriage returns and will not come out as text.
s
Test 15/F (External RAM Test) This test sends vectors to the external RAM chip. It exercises the parallel
interface and integrity of the external RAM interface on the CPU board.
Test duration depends on the oscillator frequency, typically 15-30 minutes.
Note After the last test, a mode/mute button press will result in cycling
back to the first test. This mode will never reenter the Main Loop.
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Telemetry Tables

Telemetry mode is meant to be a point-to-point communications mode
that easily interfaces with a serial communications program (ex.
HyperTerminal). The underlying hardware uses a TI75176 (or similar)
transceiver to communicate to an RS485 specification. Thus, to connect
to a PC, a converter (RS232 to RS485) is required. In the preferred
embodiment, the converter selected is powered from the PC UART (see
B&B Electronics Model: 485SD9TB). The communications settings that
are required are as follows: 9600-8-S-1-NONE:
Communications Parameters:
Bits per second: Settable in Service Mode (9600, 14400, 19200 *Default*,
38400)
Data bits: 8
Parity: Space
Stop bits: 1
Flow control: None
Once these settings are correct for the terminal program, communications
with the embedded controller can commence. To communicate, simply
send a command from the terminal program and await the response.
Commands are a simple ASCII character and some repeat with a set
frequency and some merely output data one time. Date may be text,
integer, floating point, or hexadecimal values.
Thermo Scientific Midi 40 CO2 Incubator 8-5