Manual Version 1.3.1
Manual Part# 18200-LM-0038
4.2 Ethernet Connection:
The Ethernet connection is available for PC to CPT-1 communications. These communications are available for
setting up the software, and for on screen controls. After the controller has been setup the settings can be saved
and disconnected to be run as a standalone unit. The CPT-1 uses two industry standard Ethernet connection
protocols TCP/IP and UDP/IP, the controller will automatically respond in the format in which it is connected.
When connecting to the WK Controller to a local network. The WK Controller will look to the server to assign it an
IP address; this is supported on both DHCP and BOOT-P server protocols.
4.3 RS-232 Connection:
An RS-232 connection can be created through the 9 pin serial port on the box. When opening the software the
RS-232 port will show as a COM port and will give two baud rate options, 19200 and 115000. The default baud
rate is 115000, however the slower 19200 baud rate can be selected by placing a jumper on the connection
labeled 19.2 on the upper right side of the control box.
5 Digital I/O Setup
5.1 Power Digital Ports
The digital ports are not powered by the controller. An external power supply is required for the digital ports to be
active. Use Table 1 for digital port power connections.
Pin Name
Pin #
Wire Color
Designation
Levels
Notes
Power:
Source
Outputs
15
Red/
Black Stripe
Power Source
12-24 VDC
The voltage input into these pins power
all of the source type outputs.
* The voltage input will equal the voltage
output from these ports.
27
Red/
White Stripe
Ground Reference
0 VDC
Power:
Sink Outputs
8
Green
Power Source
12-24 VDC
The voltage input into these pins will
power the sink type outputs.
11
Orange
Ground Reference
0 VDC
Power:
Input High
37
Violet/
Red Stripe
Reference Voltage
High
12-24 VDC
The Voltage input into this pin will be the
reference for all digital high inputs.
Power:
Input Low
19
Orange/
Black Stripe
Reference Voltage
Low
0 VDC
The Voltage input into this pin will be the
reference for all digital low inputs.
* Note: When using the quick connection board simply connect power to one of the power ports, then power will
be distributed to all of the correct locations. See markings on the board for power and ground pins. The second
power port is to jumper power to the controller.
5.2 Digital Inputs:
Each digital input can be wired into either a high or low voltage reference see Table 2.
Table 1: Wire connections for powering the digital ports. All ports should be connected
