ProSoft Technology MVI56E-SIE - Manual (Page 126)

Diagnostics and Troubleshooting MVI56E-SIE ♦ ControlLogix Platform
User Manual Client Communication Module
Page 126 of 168 ProSoft Technology, Inc.
September 6, 2012
4.3 Reading Status Data from the Module
Module status information is useful for troubleshooting and can be accessed in
several different ways.
In the ladder logic's SIE.STATUS controller tag structure.
The MVI56E-SIE module returns status data in the input image that can be used
to determine the module’s operating status. This data is transferred from the
module to the ControlLogix processor continuously as part of the normal data
transfer block sequence (page 138). You can view this data in the SIE.STATUS
controller tag structure in the ladder logic.
Client status data can also be requested and returned in a special Client Status
block (page 143), outside of the normal data transfer block sequence. The status
data contained in the Client Status block is different from the status data in the
normal data transfer blocks. It can also be viewed in the SIE.STATUS controller
tag structure.
For more information about status data in SIE.STATUS, see the Status Data
Definition (page 127).
In ProSoft Configuration Builder's Diagnostics screens.
For more information, see the section on PCB Diagnostics (page 121).
In database locations specified by Error/Status Pointers (optional).
If optional Error/Status Pointers are enabled, status data can also be found in the
Read Data area of the module’s database at the locations specified by the
pointer configuration parameters. For more information, see Backplane
Error/Status Pointer (page 44), Client Error/Status Pointer (page 47) and
Command Error Pointer (page 48).