PLC-5/250: shared data addresses

Shared data addresses specify a memory location that both the processor and a Configurable Vision Input Module (CVIM) can access. The CVIM is an optional module, used in vision applications. For example: 1SD13:10/0.
To access shared memory:
  1. Specify the pushwheel number (1-4), shared data specifier (SD), and module identification (13 for a CVIM).
  2. Include a colon (:) as a word delimiter, followed by the word number (0-1023 decimal).
  3. Include a front slash (/) as a bit delimiter, followed by the bit number (0-15 decimal).
For example,
1SD13:10/0
 is a valid shared data address:
Where:
Is the:
Pushwheel number (1 or 2)
SD
Shared data specifier
13
Module identification
10
Word number (0-1023 decimal)
0
Bit number (0-15 decimal)
The preceding example specifies pushwheel number 1, shared data (
SD
), module number 13 (CVIM module), word 10, bit 0. Shared data is available only if you have a CVIM module.
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