Moxa Technologies NPort IA5150A User Manual

NPort IA5150A/IA5250A Series Web Console Configuration
5-12
Max connection is usually used when the user needs to receive data from different hosts simultaneously. The
factory default is 1, this means that only one specific host can access this NPort IA5150A/IA5250A, and the
Real COM driver on that host will have full control over the port.
Max Connection 1:
Only a single host’s Real COM driver can access the specific NPort IA5150A/IA5250A serial port.
Max Connection 2 to 8:
Allows two to eight host’s Real COM drivers to access the specific NPort IA5150A/IA5250A serial port at the
same time. When multiple hosts’ Real COM drivers access the serial port at the same time, the COM driver only
provides pure data tunneling without control ability. This means that the serial port will use the parameter of
the firmware’s settings and not those of your application program (AP).
Application software that is based on the COM driver will receive a driver response of “success” when the
software uses any of the Win32 API functions. The firmware will only send the data back to the driver on the
host.
Data will be sent first-in-first-out when the data is received by the NPort IA5150A/IA5250A from the Ethernet
interface.
ATTENTION
When "Max connection" is set greater than 1, this means that
the NPort IA5150A/IA5250A will be using a
“multi connection application” (i.e., up to eight hosts are allowed access to the port at the same time). When
using a
multi connection application, the NPort IA5150A/IA5250A will use the serial communication
parameters set in
the console. All of the hosts connected to that port must use the same serial settings. If
one
of the
hosts opens the COM port with parameters that are different from the NPort IA5150A/IA5250A’s
console setting, data communication may not transmit properly.
Ignore jammed IP
Setting Factory Default Necessity
No or Yes No Optional
If you select “No” when Max connections is > 1 and the serial device is transmitting data, in the event one of
the connected hosts is not responding, the second group of data will not be sent until all the data from the first
group has been successfully transmitted. If you select “Yes” for “Ignore jammed IP,” hosts that are not
responding will be ignored, but the data will still be transmitted to all the other hosts.
Allow driver control
Setting Factory Default Necessity
No or Yes No Optional
If “Max connection” is greater than 1, NPort will ignore the driver control commands from all connected hosts.
However, if you set “Allow driver control” to “Yes,” control commands will be accepted. Note: Since the NPort
IA5150A/IA5250A may get configuration changes from multiple hosts, the most recent command it receives
will take precedence.
Packing length
Setting Factory Default Necessity
0 to 1024 0 Optional
Default = 0, The Delimiter Process will be followed, regardless of the length of the data packet. If the data
length (in bytes) matches the configured value, the data will be forced out. The data length can be configured
for 0 to 1024 bytes. Set to 0 if you do not need to limit the length.
Delimiter 1
Setting Factory Default Necessity
00 to FF (hex) None Optional

Moxa Technologies NPort IA5150A Specifications

General

Isolation	1.5 kV
Certification	CE, FCC
Serial interface type	RS-232/422/485
Serial ports quantity	1
Ethernet LAN data rates	10, 100 Mbit/s
Ethernet LAN (RJ-45) ports	2
Supported network protocols	ICMP, IP, TCP, UDP, DHCP, BOOTP, Telnet, Rtelnet, DNS, HTTP, SMTP, SNTP, IGMP
Connectivity LEDs	Yes
Storage temperature (T-T)	-40 - 85 °C
Operating temperature (T-T)	0 - 60 °C
Operating relative humidity (H-H)	5 - 95 %
Input voltage	12 - 48 V
Safety	UL-508

Weight and Dimensions

Weight	475 g
Dimensions (WxDxH)	36 x 105 x 140 mm