CET s.r.l. Parallel Message Display
page 6
2.2. CHART OF COMMANDS
Input signals are divided and managed according to the codes reported in the following chart:
COMMAND
SY
D
C
B
A
D8 D7 D6 D5 D4 D3 D2 D1
D0
TYPE 0
IMP. 0
0
0
0
Binary message Synchronism
TYPE 1
IMP. 0
0
0
1
BCD message Synchronism
TYPE 2
IMP. 0
0
1
0
BCD variable
TYPE 3
IMP. 0
0
1
1
Address in BCD variable on display
TYPE 4
IMP. 0
1
0
0
Address in Binary variable on display
TYPE 5
IMP. 0
1
0
1
ASCII variable
TYPE 6
0
0
1
1
0
Message recall through independent inputs
TYPE 7
0
0
1
1
1
Test manual commands
TYPE 8
1
0
1
1
1
Direct Binary message recall
TYPE 9
IMP. 1
0
0
0
Not active
TYPE 10
IMP. 1
0
0
1
Displayed message print enabling
TYPE 11
IMP. 1
0
1
0
Binary sub-message recall
TYPE 12
IMP. 1
1
0
0
Message flashing mode enabling
TYPE 13
IMP. 1
0
1
1
BCD sub-message recall
TYPE 14
IMP. 1
1
0
1
System language change / Bank selection
Each command is stored upon the variation from 0 to 1 of SY (excluding command types 6, 7 and 8).
2.3. MESSAGE RECALL ON DISPLAY
Each message is associated with a number that identifies the message sequence position in the text composition
MEMORY.
Four command types are available to recall a message to the display, as indicated in the previous chart.
2.3.1. Command TYPE 0: Binary message Synchronism
Inputs
SY
D
C
B
A
Command TYPE 0
IMP
0
0
0
0
