Instruction manual

CHAPTER SIX
6-2
A typical interconnection (in its simplest form) between the 361T and a
computer is shown below.
361T
COMPUTER
W/DB25
Receive Data 2 ———————— 3 Receive Data
Transmit Data 3 ———————— 2 Transmit Data
Ground 7 ———————— 7 Ground
Serial Output
The data format that is transmitted from the 361T is determined by the
I/O PORT options found in "I/O Port Selection" in Chapter 5.
Serial Output Note – Data transmitted by the 361T shall
have one start bit (Logic 0), 7 bits of ASCII, one parity bit
set to zero, and then one stop bit (Logic 1).
Serial Input Commands
Your 361T is equipped with an input which allows the 361T to be
controlled or monitored remotely. Every function which can be
performed by the 361T (plus a few special functions not activated by the
keyboard) can be activated via the serial input. This Remote Control
Interface is covered by U.S. Patent 4,591,978.
Basically, the Remote Control Input (RCI) format consists of a series of
characters (a command string) sent to the 361T in an ASCII FORMAT
with a Carriage Return or Line Feed at the end of each command string
to act as a delimiter. The 361T then acts on that command. The serial
input buffer of the 361T, upon receiving its first command string
character, sends a "Buffer Full" interrupt to the 361T microprocessor.
The 361T microprocessor then halts all normal operation and dedicates
itself to receiving and responding to remove control command strings.
Normal execution is returned to upon receiving a GO command via the
serial input.
Serial Input Notes – 1) Data transmitted by the 361T shall
have one start bit (Logic 0), 7 bits of ASCII, one parity bit
set to zero, and then one stop bit (Logic 1). 2) To ensure
proper processing of received data by the 361T, a delay of
50 msec. should be added between every character sent to
the 361T, and a delay of 500 msec. should be added after a
"p", "t", or "u" command.