7 U02124ML-01-UK
3.4 ADDRESSING
There are 16 possible addresses, 0 to 15. These correspond to addresses
set up on the DIP switches (see section 4.2) the 0 address (ASCII 30) is a
common address and any characters following are displayed by all units.
3.5 PROTOCOL
The following serial ASCII protocols are switch selectable:
MODE 0: All data received is displayed (except illegal characters) in the
order in which they are received.
MODE 1: The last six characters received are displayed once a carriage
return character (OD) is received.
MODE 2: 269 Temperature Meter Display - display is updated when a
carriage return character is received. When the transmitting meter is
measuring temperatures this remote module repeats the four characters
shown on the 269, followed by degrees C or degrees F. When the
transmitting 269 is indicating millivolts, this remote module repeats the four
characters in the middle four positions, and negative indication is in the left'
hand position. Overload indication is all E's (See section 4.7 for interfacing
details).
MODE 3: P6000 Universal Counter (without units of measurement) Display
is updated when the carriage return character is received. The display
repeats the six characters shown on the P6000. If the first character
received is a H the upper left hand indicator will light, if a L is received the
lower left hand indicator will light and if the first character is a B, both
indicators will light (See section 4.7 for interfacing details).
N.B. The P6000 must be configured to transmit a 9 character message, not
a 12 character message.
3.6 LH/RH LED INDICATORS
Two rectangular LED's are provided on the 6155AS for use as general
indicators
I
alarm condition displays. An extra (seventh - MSD) character
transmitted (in modes 0 or 1) will control these two LED's as follows:-
RH LED
=
Upper horizontal segment
=
segment A
LH LED
=
Centre horizontal segment
=
segment G
Thus any valid character (see figure 3.1) can be sent which includes neither
I either or both of the above segments to operate the indicators as required.
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