ATI Q46 Ethernet/IP Communications Manual
7
1.6 Interface Operation
Once the proper power is applied to the Q46 monitor, select “Ethr” in the ^Host
Comms listing of the OPTIONS menu on the Q46 to enable Ethernet/IP
functionality.
On power-up, the Q46 looks for a BOOTP server to assign an IP address.
Standard PLC networks (like Rockwell-RSLinx) include this server as part of the
system. If no response from BOOTP occurs after about 60 seconds, the Q46
system defaults to an IP address at 192.168.0.254. The data is stored in an
object with the attributes shown below, and can be acquired with an Ethernet/IP
PC test program using the explicit message format as follows –
Service: 14 (0x0E hex, Get_Attribute_Single)
Class: 4 (0x04 hex, Assembly Object)
Instance: 101 (0x65 hex, Input Instance)
Attribute: 3 (0x03 hex, Data Attributes)
As an example, this call is shown in the Molex Ethernet/IP software tool screen
shot below, run on the default IP address of a Q46D. This free Molex PC tool
can be used to test explicit messages on the Q46 interface. To run this on a PC
for check-out, the user must first be sure to set the IP address of the PC Ethernet
port to the 192.168.0 subnet range, like 192.168.0.20 (or, manually run a BOOTP
server.) This tool cannot be used to set a fixed IP, and is primarily useful as
a quick verification tool.
Figure 3 - Molex Ethernet/IP Explicit Message Tool Example
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