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Section 6 Linking Device LD 800DN
LD 800DN I/O Tables
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LD 800DN I/O Tables
The LD 800DN maintains an I/O table accessible by both DeviceNet slaves and
CI873. The DeviceNet interface in the LD 800DN accesses the I/O tables, as slave
I/O connections are processed by the DeviceNet master. There is no buffering or
timed updates of the I/O within the module. Safeguards are in place to ensure data
integrity by prohibiting simultaneous access by the Ethernet and DeviceNet
interfaces. There is no synchronization between the two network interfaces.
When an output data is required on a I/O connection of a slave, the output data is
read from the Output table. This output data is written by the Ethernet interface.
When an input data is received on a I/O connection of a slave, it is copied to the
Input table. This data is available for reading by the Ethernet interface and sent to
the EtherNet/IP I/O scanner during the next data exchange.
Status and Diagnostics Indicators
LD 800DN has a group of LED indicators on its front side for displaying the current
status of the module and the network interfaces. The layout of the LEDs is shown in
Figure 70. LD 800DN LEDs
Summary of Contents for AC 800M
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Page 3: ...AC 800M EtherNet IP DeviceNet Configuration System Version 6 0 ...
Page 10: ...Table of Contents 10 9ARD000014 600 A ...
Page 18: ...Released User Manuals and Release Notes About This User Manual 18 9ARD000014 600 A ...
Page 22: ...Figure 1 System configuration Device Import Wizard Section 1 Introduction 22 9ARD000014 600 A ...
Page 26: ...Linear Network Section 1 Introduction 26 9ARD000014 600 A ...
Page 46: ...Hot Swap of EtherNet IP Device Section 2 Functional Description 46 9ARD000014 600 A ...
Page 68: ...Figure 22 Enum Values File Section 3 Device Import Wizard 68 9ARD000014 600 A ...
Page 71: ...Section 3 Device Import Wizard File 9ARD000014 600 A 71 Figure 25 EDS Range selection ...
Page 222: ...Auxiliary RS 232 9 Pin D Subminiature Section 8 Hardware Connections 222 9ARD000014 600 A ...
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