Pressure Systems 9022 Uživatelský manuál stáhnout pdf (Strana 80)

www.meas-

spec.com

Measurement Specialties Inc. NetScanner System (9016, 9021, & 9022) User’s Manual

3 - 47

choice of remport parameter will affect the way host software must handle

multiple modules sending streams. If every module uses the same port, then a

single host socket can be bound to that port to receive all responses from all

modules. The remote IP address, given to that socket, at time of receipt of the

stream’s datagram, will identify the particular module who sent the datagram.

Alternately, every module may be given a unique remport number, requiring that a

host program bind a unique UDP socket to each of these unique remport numbers.

Then, when a particular socket receives a UDP datagram to its unique port, the

module sending it is automatically identified.

The optional ipaddr parameter is normally unspecified, causing it to default to use

the IP address of the current TCP/IP connection. That way the host need not have

to be aware of its own IP address. This parameter is provided in case a special

host has multiple network interfaces and wants to use more than one. When used,

ipaddr requires four dotted numeric fields (d.d.d.d). Each d is a 1-3 digit decimal

number in the range 0-255. The ipaddr = 255.255.255.255 is best avoided, unless

the UDP datagrams of streams are to be broadcast to all network nodes.

Examples:

• Configure all streams to be delivered via UDP/IP protocol. Host expects the

UDP datagrams to arrive via port 7500. The IP Address of the current TCP/IP

connection is also used to send each UDP datagram.

“c 06 0 1 7500”

Read response:

“A”

• Configure all streams to be delivered via the default TCP/IP protocol.

“c 06 0 0”

Read response:

“A”

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 ... 193 194

Žádné komentáře

Pressure Systems 9022 Uživatelský manuál Strana 80