Polling Mode Options

Definition:

These parameters only take effect for Polling Mode <K140,5> on the main RS-232 or RS-422 ports (not on the Auxiliary 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). To enable multidrop protocol, the RS422 port must be enabled, <K102,1>, in order to turn the transmitter on and off. If RS-232 is enabled instead of RS422, <K102,0>, then 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-NAK Defaults

RES: (Reset)	04
REQ: (Request)	05
STX: (Start of Text)	02
ETX: (End of Text)	03
ACK: (Acknowledge)	06
NAK: (Negative Acknowledge)	15

Note: See USB HID Interface for protocol information relating to USB.