Star Micronics TCP300II Series Printer User Manual


 
5
3-3. Transmission Control Matrix (Reader Type)
Event
TCP status
STX received ETX received Other receptions ACK received NAK received No response
1 Idling
2
Read and
discarded1
Read and
discarded1
Read and
discarded1
Read and
discarded1
1
2 Command received Buffering 2 Buffering 3
If data error
DLE sent 1
If data normal
buffering 2
If data error
DLE sent 1
If data normal
buffering 2
If data error
DLE sent 1
If data normal
Buffering 2
2
3 BCC received
If BCC matched
4
If BCC does not
match
NAK sent 1
If BCC matched
4
If BCC does not
match
NAK sent 1
If BCC matched
4
If BCC does not
match
NAK sent 1
If BCC matched
4
If BCC does not
match
NAK sent 1
If BCC matched
4
If BCC does not
match
NAK sent 1
3
4 Wait for ACK after
response sent
Read and
discarded 4
Read and
discarded 4
Read and
discarded 4
1
Response
resend 4
4
When a priority command, such as Reset command, is sent while another command is being executed, that command is canceled, and a priority
command response is returned.