MC³ 24.96.EX O&M Manual
Page 36
08/14/01 4:34 PM/LDD
On at the MC³. When you have forces in effect, there is an indication in the Main Feeder screen
“FORCE(S)”.
Available logical I/O points
There are eight logical inputs and outputs called “Available I/O 1” - “Available I/O 8”. These logical
I/O points are both inputs and outputs, and are not used by the application. This allows you to
borrow unused physical inputs and outputs from the controller to accommodate local specific
needs. For example, you may have a local emergency stop loop, and you want a indictor light for
the stopped condition. You can connect the “Not Stopped” condition to an unused physical input,
map it to “Available I/O 1” and then map “Available I/O 1” to an unused physical inverted output.
External physical I/O points
There are 16 external physical inputs and 16 external physical outputs. They are not present in the
controller, but are rather controlled by serial communications. This makes it possible, via a
supervisory system, such as SuperBridge, to locate inputs and outputs inside a controlling PLC.
The Ladder Program can have direct control over the feeder.
Digital Inputs Setup
You reach the Digital Inputs screen from Setup Screen 2. See page 33. The screen
allows you to change the mapping for the Digital Inputs. The Physical inputs are mapped
to the Logical inputs. The logical inputs appear to the left, and the physical inputs appear
to the right. When you enter the screen, the list of Logical Inputs is marked.
Digital Inputs setup screen
Use the up and down arrow key the select the logical input you want to work with. Map unused
logical inputs to either “Always On” or “Always Off”. The black dot to the right of the Logical Input
name indicates the state of the Logical Input.
(ON) or
(OFF) The black dot to the right of the
Physical Input name indicates the state of the Logical Input. In the IV (inverted) property column, a
“0” means “Not Inverted” and a “1” means “Inverted”. In the FC (forced) property column, a “0”
means “Forced OFF”, a “1” means “Forced ON” and an “X” means “Not Forced”. The “RM”
property column has no meaning and is not used.
TAB
This button switches the marking between the Logical and Physical columns. Touching
the TAB button makes the screen look like this:
Digital Inputs setup screen, Physical list marked.
