User`s guide

Clarity Visual Systems
November 1998
80
0-9, A-F for the Unit setting) providing the means to control up to 256
combinations (00 to FF).
Multiple units can be controlled simultaneously by using the ASCII
character for the asterisk (*) in place of either or both of the IDT
monitor ID bytes. The (*) is a wild card character and provides a
means to control multiple units simultaneously. There are four types
of addressing that are supported.
1. Single address mode
– the entire address is specified: 00, 01, 02,
A2, AA, FF are valid examples. Only the single display that
matches this address responds to it. An acknowledgment is sent
in this mode. Do not set multiple displays to the same address.
2. Group address mode
– the group part of the address is specified,
while the unit part of the address is not: 1*, 9*, A*, F* are valid
examples. All displays that match the group respond to this
addressing mode. No acknowledgment is sent in this mode. All
displays must be set to a unique address.
3. Unit address mode
– the unit part of the address is specified,
while the group part of the address is set as global: *2, *9, *F are
valid examples. All displays that match the unit respond to this
addressing mode. No acknowledgment is sent in this mode. All
displays must be set to a unique address.
4. Broadcast mode
– both group and unit are “*”. All displays
respond to this address. No acknowledgment is sent in this mode.
All addressing is done in hex.
CMD
- CMD is a 3 byte command character string. These command
strings are shown in the table listing the RS-232 command codes.
ASCII ETX
- End of transmission character, = 03h
Description Abbreviation Hex Decimal Character Control
End of Text ETX 03 3
❤
Ctrl- C
For example, to turn on a display with an address of 06 it would need
to receive the following command:
06PON
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