Units - Omron SYSMAC mini SP10 Operation Manual

Units

Input/Output Requirements
Sequence, Timing, and
Relationships
1-3 Units
1-3-1 CPU
SP10
signing a Control System is thus determining the requirements of the con-
trolled system.
Once the entire Control System has been designed, the task of program-
ming, debugging, and operation as described in the remaining sections of
this manual can begin.
The first thing that must be assessed is the number of input and output points
that the controlled system will require. This is done by identifying each device
that is to send an input signal to the PC or which is to receive an output sig-
nal from the PC.
Next, determine the sequence in which control operations are to occur and
the relative timing of the operations. Identify the physical relationships be-
tween the I/O devices as well as the kinds of responses that should occur
between them.
For instance, a photoelectric switch might be functionally tied to a motor by
way of a counter within the PC. When the PC receives an input from a start
switch, it could start the motor. The PC could then stop the motor when the
counter has received a specified number of input signals from the photoelec-
tric switch.
Each of the related tasks must be similarly determined, from the beginning of
the control operation to the end.
Note Programs and Peripheral Devices are not compatible between the SYSMAC
SP-series PCs and C-series PCs.
This section presents the names and functions of the various components of
the CPU, Programming Console, and Link Adapter.
The SP-series PCs are shown below. Four models are available for each:
two powered by a 100- to 240-VAC power supply and the other two powered
by a 24-VDC power supply. Refer to Appendix A Standard Models for details.
Power supply
NC Power terminals
for external supply
24 VDC, 0.1 A (see note 1)
Inputs
Analog timer
setting adjustment
Programming Console/
Link Adapter connector
Outputs
Section 1-3
5