Modifier; Addressing; Acknowledge/Response; Supported Commands - Projectiondesign F1+ Protocol Manual

6.4

Modifier

R Relative change. Value given will be relative to the existing value
A Request an acknowledge. This modifier is the only that might be applied together with another modifier. It can be
used to read back the result of the command.
? ? – current
?M – max
?N – min
6.5

Addressing

The same address mechanisms as for the binary protocol is supported in the ASCII protocol.
6.6

Acknowledge/Response

Acknowledge is optional and ON by default. Auto acknowledge can be turned on and off with ECHO commad. Also turned activated on a per command basis using modifier A.
ACK ADDRESS SEP
1 byte 3 bytes 1 byte
Field Description
ACK ASCII character '%'
SEP ASCII space
VALUE 6 bytes return value
TERM Termination char 0x0D (CR)
6.7

SUPPORTED COMMANDS

Modifiers
A Request acknowledge
? Get current value
?M Get MAX value
?N Get MIN value
R Relative set
COMMAND SEP VALUE
4 bytes 1 byte 6 bytes
Comment
Always
Always
Always
Always
TERM.
1 byte
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