UniData Communication Systems Starlog Prologger 7001, Руководство пользователя

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To select the RS-232 baud rate (other than the default 9600* baud) you must
link one (or more) of the COMPUTER connector pins 15, 16 and 17 to
ground (pin 7).
Pin 15 Pin 16 Pin 17 Baud Rate
GND NC GND 300
NC GND NC 1200
NC GND GND 2400
GND GND NC 4800
NC NC NC 9600*
NC NC GND 19200
GND NC NC 38400
GND GND GND 76800
NC = Not connected.
GND = connected to ground.
Note that pin 14 is reserved.
7.3 Communications (STARLOG) Protocol
This section describes the communications protocol common to all
STARLOG products. See Appendix B
Starlog Protocol Command List for a
complete list of STARLOG protocol commands.
7.3.1 Scan Synchronised RS-232 Communication
At the end of every scan (5 seconds usually) the logger will check to see if the
computer interface is connected. If the interface is connected, the logger
sends a prompt to the interface (host computer). This prompt is an ASCII
asterisk followed by a carriage return (CR).
The logger then waits 0.5 second for a request from the host computer. If no
request is received by the logger, the logger powers down (switches off) until
the next scan (5 seconds usually).
While the logger is communicating with the computer, it will remain active
(in high power mode). However, any logger scans that are due will be
processed simultaneously with ongoing communications.
PROLOGGER Hardware
COMPUTER COMMUNICATION 35