BIS U-602_ Processor Unit
TCP/IP / RS232
28
The processor unit and the controlling system communicate via the serial interface.
A sequence protocol determines the communication type.
The processor unit and the controlling system communicate via the physical Ethernet network.
The device uses the Internet Protocol (IP) for network communication.
The Transmission Control Protocol (TCP) is used to ensure all the data is transferred in the
correct sequence without error.
The controlling system and the processor unit BIS U-6027 communicate via TCP/IP sockets.
Communication occurs in raw mode (only user data is exchanged, not configuration or status
information).
Establishing a connection:
– Socket connection to the IP address of the device, port 10001. The connection depends on
the PC operating system and programming language being used.
Synchronous commands are structured according to the "Command-response-end" principle.
This command type is standard.
Command sequence:
Base
state
Com-
mand
'_ _'
Reply
Base
state
t1
– For all commands, the delay time t1 depends on the number of data carriers and bytes to be
read.
The only asynchronous command is 'CA'. Sending the CA command once initiates the "Detect"
action. Then the read field is monitored continuously. Only modifications in the data carrier
population are reported to the system.
The command is issued until it is terminated by the stop command 'QS'.
Command sequence:
Base
state
Com-
mand
'CA'
Reply
Stop
'QS'
Base
state
8.1 Function
Principle of the
BIS U-6020
8.2 Function
Principle of the
BIS U-6027
8.3 Protocol
Sequence
Synchronous
commands
Asynchronous
commands
/Stop
8
Device Function
Содержание BIS U-6020-053-10 RS232
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