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CHAPTER 3: SUPPORTING LADDER LOGIC
Minimal or no ladder logic is required in most applications. The following ladder logic examples extend
the capabilities of the Temperature Controller.
SLOT DEPENDENT CONFIGURATION
The rung below programs the slot dependent V-Memory locations for a F4-4LTC in Slot 4, Normal
Operating Mode, and 4 Loops Enabled.
RE-READ LOOP PARAMETERS
If any of the PID or alarm parameters are changed then bit 0 of the mode word must be set in order for
the Temperature Controller module to apply these new values. The logic below shows an example that
uses X0 to set bit 0 of the mode word. A one-shot is used so that the Temperature Controller module
does not constantly re-read these parameters. You can change the X and C references to whatever best
meets your application needs. If your loop does not start at V5000 then you need to change the
V-Memory reference accordingly.
3.1
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