5/17/2022 | MAN1278-03-EN
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2 CONTROLLER OVERVIEW
page 3 of 8
wiring: I-O continued on next page...
2.1 - Port Connectors
1. Touch Screen
2. High-capacity microSD Slot
3. RS232/RS485 Serial Connector,
CAN port (via RJ45),
LAN Port (Ethernet)
4. USB Mini-B Port
5. Analog I/O, DC Inputs, DC Outputs
6. DC Power
NOTE:
See Precaution #12 on p.7 about
USB and grounding.
DC Input / Frame
DC Input / Frame
Solid/Stranded Wire:
12-24 awg (2.5-0.2mm).
Strip Length:
0.28” (7mm).
Torque Rating:
4.5 – 7 in-lbs (0.50 – 0.78 Nm).
DC- is internally connected to I/O V-.
A Class 2 power supply must be used to meet UL requirements
.
POWER UP
1. Attach included ferrite core* with a minimum of two turns of the DC+ and
DC- signals from the DC supply that is powering the controllers.
2. Connect to Earth ground.
3. Apply the recommended power.
2.2 - Power Wiring
Primary Power Port Pins
PIN SIGNAL
DESCRIPTION
1
Ground
Frame Ground
2
DC-
Power Supply Common
3
DC+
Power Supply Voltage
Positive Logic vs. Negative Logic Wiring
The OCS can be wired for positive logic inputs or negative.
0V
I1
0V
I1
12-24VDC
Positive Logic In
Negative Logic In
3.1 - Digital Inputs
Digital inputs may be wired in either a Positive Logic or Negative Logic
fashion as shown. The setting in the Cscape Hardware Configuration for
the Digital Inputs must match the wiring used in order for the correct
input states to be registered.
3 WIRING: INPUTS AND OUTPUTS
3
4
6
5
2
1
3.2 - Relay Life Expectancy
Data Values
INPUT MODE:
DATA FORMAT, 12-bit INT:
0-20mA, 4-20mA
0-32000
RTD
20 Counts/ °C
Raw input values are found in the registers as Integer-type data with a
range from 0 – 32000.
Analog inputs may be filtered digitally with the Filter Constant found in
the Cscape Hardware Configuration for Analog Inputs. Valid filter values
are 0 – 7 and act according to the following chart.
3.3 - Analog Inputs Information
Micro OCS Relay Lif eExpectancy
Mechanical Endurance
10,000,000 ops Min. (no load)
Electrical Endurance
100,000 ops Min. (rated load)
