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Spectrum Controls 1746sc-INO4vi User Manual

Page 26

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16

SLC 500

Isolated Analog Output Modules

No special I/O configuration (SPIO CONFIG) information is required.
The module ID code automatically assigns the correct number of input
and output words for the processor to access.

Figure 4. Output and input words

Channel 0 Output Data Word

15

0

O:e.0

Address

Channel 1 Output Data Word

O:e.1

Channel 2 Output Data Word

O:e.2

Channel 3 Output Data Word

O:e.3

Channel 1 Configuration Byte

Channel 0 Configuration Byte

O:e.4

Channel 3 Configuration Byte

Channel 2 Configuration Byte

O:e.5

Low Value of Output Data Limit (or User-Defined Scale)

O:e.6

High Value of Output Data Limit (or User-Defined Scale)

O:e.7

Channel 0 Data Word

15

0

I:e.0

Address

Channel 1 Data Word

I:e.1

Channel 2 Data Word

I:e.2

Channel 3 Data Word

I:e.3

Channel 0 Status Word

I:e.4

Channel 1 Status Word

I:e.5

Channel 2 Status Word

I:e.6

Channel 3 Status Word

I:e.7

Example – If you want to reconfigure channel 2 on your module, and it
is in slot 4 of the SLC chassis, you would modify the configuration word
at address O:4.5. Alternatively, if you want to obtain the status of channel
2, you would check the status word at address I:4.6.