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 true multidrop protocol, the RS422/485 port must be enabled, <K102,1>, in order to turn the transmitter on and off. If RS-232 is enabled instead of RS422/485, <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.