POWERSCAN® D8330/M8300
5.1.2ACK/NACK ProtocolPowerScan® D8330 ReadersThis parameter sets a transmission protocol in which the Host responds to the reader after every code transmitted. The Host sends an ACK character (06 HEX) in the case of good reception or the NACK character (15 HEX) requesting
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| data |
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PowerScan | ® | cable | Host |
D8330 |
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ACK or NACK
ACK/NACK enabled
If the reader does not receive an ACK or NACK, transmission is ended after the RX Timeout (see par. 5.1.4).
When ACK/NACK protocol is enabled, FIFO must be disabled manually, see par. 5.1.3.
PowerScan® M8300 ReadersThe transmission protocol takes place between reader, cradle and Host. The reader passes its data (code read) to the cradle, which sends it to the Host. The management of responses (from Host or cradle) depends on the Transmission Mode parameter, see par. 5.9.4.
In the following descriptions the completed transmission is indicated by the Beeper Control for Radio Response parameter with its default setting to Normal, see par. 5.9.5.
When ACK/NACK is disabled (in
Transmission Mode = |
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| data | data |
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PowerScan | ® | cable | Host | |
M8300 |
| good RX |
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| beep |
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ACK/NACK disabled
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