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Spec Tech Industrial Electric
Chapter 3: Set-Up & Programming
Chapter 3: Setup & Programming
Getting Started
Before the 1746R PLC Resolver Interface Module can communicate with the A-B SLC 500
processor, the system must be configured to include the 1746R PLC Resolver Interface Module.
This is done through either the APS Software or the hand-held controller. When defining the
system, the program will prompt for a SPIOGA ID code. The ID code for the 1746R PLC
Resolver Interface Module is: 3535. This tells the processor that the 1746R uses 8 input words
and 8 output words.
I/O Image Table
Data is passed between the A-B SLC 500 processor and the resolver input module through the I/O
image table. This table is limited to 8 input words and 8 output words.
Configuration data, such as the scale factor and the offset position, will be programmed through the
output image table. Monitoring data, such as the current resolver position and RPM, will be reported
back to the SLC 500 processor through the input image table.
Two types of data can be passed through the I/O image table, status/control data and application data.
Two bit registers have been placed in word 0 of the input image table and word 0 of the output image
table for the status/control data. The rest of the I/O image table is used for application data.
Output Image Table
Because there are more than 8 parameters to program, the 1746R Resolver Interface Module uses
a command based programming sequence to enter parameters into the system. The first word of
the output image table is the command bit register. This bit register contains a programming bit
used to initiate the programming sequence. The second word is the command word and the other 6
words are used for the command parameters as shown in the table below:
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W
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d r
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W
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5
W
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d r
6
W
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d r
7
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