Microscan MINI Hawk Xi Manuel d'utilisateur Page 51

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MINI Hawk Xi High Performance Imager Us
er Manual 3-7
Communications
Polling Mode Options
RES-NAK Defaults
Note: See Polling Mode Data Flow Examples for sample Polling Mode communication
scenarios.
Definition: These parameters only take effect for Polling Mode <K140,5> on the main
RS-232 port and are completely independent of the ACK/NAK Options
<K147>.
The values of protocol characters can be changed, but the protocol events
cannot be disabled. The polling mode address is configured in the <K140>
command (see Poll Address).
If RS-232 is enabled, <K102,0>, Polling Mode will operate as a Point-to-
Point polling protocol. This is because the RS-232 transmitter is always left
on when enabled.
Serial Cmd: <K148,RES,REQ,STX,ETX,ACK,NAK>
RES: (Reset) 04
REQ: (Request) 05
STX: (Start of Text) 02
ETX: (End of Text) 03
ACK: (Acknowledge) 06
NAK: (Negative Acknowledge) 15
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