User guide
Serial Configuration
Rev 2.3 Feb.12 149
ATZ Reset When set to Enable, +++ ATZ will reset the device. Options:
• Disable
• Enable
Default: Enable
IP List Dial This allows access to the Modbus IP Address using the first two digits of the dial string.
E.g., ATDT1234567 would imply ID index 12 on the Modbus Address list and use the
associated IP Address as the destination. Options:
• Disable
• Enable
Default: Disable
TCP
TCP Auto Answer This register determines how the AirLink device responds to an incoming TCP connection
request. The MP device remains in AT Command mode until a connection request is
received. DTR must be asserted (S211=1 or &D0) and the MP device must be set for a
successful TCP connection. The MP device will send a “RING” string to the host. A
“CONNECT” sent to the host indicates acknowledgement of the connection request and
the TCP session is established.
• Disable
• Enable
Default: Disable
TCP Connect Timeout
(secs)
Specifies the number of seconds to wait for a TCP connection to be established when
dialing out.
TCP Idle Timeout TCP connection time-out (TCPS) units. Specifies a time interval upon which if there is no in
or outbound traffic through a TCP connection, the connection will be terminated.
• n=0 : minutes
TCP Idle Timeout Unit Interval to terminate a TCP connection when no in or outbound traffic. This value affects
only the TCP connection in TCP PAD mode. Options:
• Minutes
• secs
Default: Minutes
TCP Connect
Response Delay
(secs)
Connect Delay: Number of seconds to delay the “CONNECT' response upon establishing a
TCP connection. OR Number of tenths of seconds to delay before outputting ENQ on the
serial port after the CONNECT when the ENQ feature is enabled.
• n=0 - 255
UDP
UDP Auto Answer Sets UDP auto answer (half-open) mode. Options:
• n=0 : Disable (default)
• n=2 : Enable
UDP Idle Timeout
(secs)
Set or query UDP auto answer idle time-out in seconds. If no data is sent or received
before the time-out occurs, the current UDP session will be terminated. While a session is
active, packets from other IP addresses will be discarded (unless *UALL is set).
• n=0 : No idle time-out (Default).
• n=1 - 255 : Time-out in seconds.
Table 11-1: Serial Port Configuration
Field Description