Allen-Bradley Powermonitor 3000 User Manual page 74

4-14 Communications
Publication 1404-UM001D-EN-E - October 2004
IP Address (decimal):
(binary):
Subnet (decimal):
Mask
(binary):
In this example, the NetID is 192.1.1.0 and the HostID is 0.0.0.207.
The relationship between NetID and HostID depends on the IP
address class, the discussion of which is beyond the scope of this
document (the example uses a Class C IP address). Devices on the
same subnet can communicate directly; devices on different subnets
may communication with each other only through a gateway or
router.
The Gateway IP Address defines the address of the gateway or router
on the unit's subnet that is used to route messages to other subnets for
wide-area networking. Default: 128.1.1.1.
If the IP address is set to 0.0.0.0, any user settings for Subnet Mask and
Gateway IP Address are ignored and these parameters are obtained
from a bootp server (Series A, only).
Keep Alive Time (Series A only) defines the maximum time that the
unit keeps a socket dedicated to a connection that is not responding.
The unit probes inactive connections at this rate and closes the
connection if the remote device does not respond within 8 probes.
The range is 0 to 3,600 seconds; default is 30 seconds. 0 disables
sending of Keep Alive packets.
The Protocol Select parameter (Series A only) determines which
protocol the Ethernet port uses. Choices are: 0, for CSP and CIP
dual-stack; 1 for CSP only; and 2 for CIP only. CSP is the client/server
protocol (also called PCCC) used by some legacy Allen-Bradley PLC-5
and SLC 500 controllers. CIP is the control and information protocol
that underlies EtherNet/IP, ControlNet and DeviceNet
communications. EtherNet/IP is an open standard used by a number
of suppliers. The default setting is 0, dual stack CSP and CIP (Series B
only supports CIP).
192 .1
11000000 .00000001
255 .255
11111111 .11111111
-------- Net ID
.1 .207
.00000001 .11001111
.255 .0
.11111111 .00000000
-------- -Host ID-