HOST.pdf - 第49页

BM 122/ 123 /1 33/ 221/2 31 HOST COMPUTER SYSTEM 3.6 Handl i ng Co mm uni cations Break E35HEC- 4A-201- A0 3.6- 2 3.6. 2 Cable Di sconnected whi le th e Host Co mpu ter is w aitin g for Reception The c able has been di s…

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BM122/123/133/221/231
HOST COMPUTER SYSTEM
3.6 Handling Communications Break
E35HEC-4A-201-A0
3.6-1
The cable has been disconnected while the
equipment is waiting for reception.
Waiting for
reception
Detect cable break before transmission and
disconnect
Waiting for
reception
Send a request for connection.
Request for connection
Clears the last connection automatically and
establishes a new connection for the
request.
Clears the last connection
New connection
Waiting for
reception
Remains waiting for reception because it
cannot detect disconnection by host
computer.
3.6. Handling Communications Break
E35HEC-4A-201-A0
Icons used in this section
: Equipment
: Host computer
3.6.1 Cable Disconnected while the Equipment is waiting for
Reception
BM122/123/133/221/231
HOST COMPUTER SYSTEM
3.6 Handling Communications Break
E35HEC-4A-201-A0
3.6-2
3.6.2 Cable Disconnected while the Host Computer is waiting
for Reception
The cable has been disconnected while the host
computer is waiting for reception.
Detects cable break before transmission
and disconnects automatically.
C2HB
Detect cable breaking by a C2HB
command.
Clear the last connection and send a
request for a new connection.
Establishes a new connection for the
request.
Waiting for
reception
Waiting for
reception
Waiting for
reception
Clears the last connection
New connection
Request for connection
BM122/123/133/221/231
HOST COMPUTER SYSTEM
4. COMMAND TABLE
E35HEC-4A-CC1-A0
4-1
4. COMMAND TABLE