Rockwell Automation 1761-NET-ENIW MicroLogix Ethernet Interface (ENI) User Manual - Manual (Page 87)

Publication 1761-UM006E-EN-P - August 2005
1761-NET-ENIW Web Server Capabilities 7-11
Integer data, written to N50 can be in the range of -32768 to +32767.
Floating point data, written to F51, can be any valid 32-bit floating
point number. However, ASCII representation is limited to 7 characters
plus the decimal and any exponents.
Values that do not change are not written to the device. The data is
not validated by the ENIW. Failed writes are indicated by six question
marks (??????).
Display Event Data The Event page is a dynamic page that displays lines buffered by the
ENIW as a last specified number of events (Event Log) as shown
below.
Table 7.5 Data Table Addresses for Data View Pages
Row Data Table Addresses
Page1 Page2 Page3 Page4
1 N50:0 N50:7 N50:14 N50:21
2 N50:1 N50:8 N50:15 N50:22
3 N50:2 N50:9 N50:16 N50:23
4 N50:3 N50:10 N50:17 N50:24
5 N50:4 N50:11 N50:18 N50:25
6 N50:5 N50:12 N50:19 N50:26
7 N50:6 N50:13 N50:20 N50:27
8 F51:0 F51:3 F51:6 F51:9
9 F51:1 F51:4 F51:7 F51:10
10 F51:2 F51:5 F51:8 F51:11
TIP
The device updates run at a slightly higher priority
than regular EtherNet/IP network traffic. However,
the ENIW does not guarantee delivery or write
performance and will discard data after the standard
DF1 retry and timeout periods.