Backplane Variables (Smgcbackplane); Last Error Data (Smgc_0103_Lasterr) - ProSoft Technology ControlLogix MVI56E-SMGC User Manual

MVI56E-SMGC ♦ ControlLogix™ Platform
Enhanced FMC722 TPU General Communication Module

3.1.2 Backplane Variables (SMGCBackplane)

The SMGCBackplane object stores all the variables required for the data transfer
operation between the module and the controller. The LastRead data member is used as
the handshaking byte to indicate the arrival of new data from the module. The structure
of this object is shown in the following illustration:
The other members of the object are utilized in the ladder logic to assist in the data
transfer operation.

3.1.3 Last Error Data (SMGC_0103_LastErr)

The SMGC_0103_LastErr object stores the information received in the last error block
received from the server. When this block is received, ladder logic copies the information
into this object. The structure of the object is shown in the following screen:
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