USB One Channel Relay

for MACH3 CNC software

KMtronic USB Relay

Manufacturer:
KMtronic LTD

Features:
- Fully assembled and tested.
- Powered from USB
- For 12V/24V DC 15A or 120V/220V AC at 10A max

Specifications:
Relay have Normally Open (NO) and
Normally Closed (NC) Contacts capable of switching max:
- 12VDC/15A
- 24VDC/15A
- 125VAC/15A
- 250VAC/10A

Dimensions:
100 mm / 58 mm / 24 mm

Supply:
Fully powered from USB

Drivers:
FTDI USB to Serial converter: FT232RL
Windows(all versions), Linux, Mac OS 8, Mac OS 9, Mac OS X,
Arduino, Raspberry PI ...

Communication:
8 Data, 1 Stop, No Parity
Baud rate : 9600

Commands:
OFF command : FF 01 00 (HEX) or 255 1 0 (DEC)
ON command : FF 01 01 (HEX) or 255 1 1 (DEC)
Status request : FF 01 03 (HEX) or 255 1 3 (DEC)

All in tree steps:

1. Connect USB relay to PC and install the drivers.

2. Download KMtronic.DLL and place it in your Mach3 install folder (usually C:\Mach3)

3. Add to your macro or button script ON or OFF command

Command's:

a = Relay(5,1,"ON") - where "5" is USB COM port, "1" is relay number, "ON" is command, which turns ON the relay number 1 connected to COM5
a = Relay(5,1,"OFF") - where "5" is USB COM port, "1" is relay number, "OFF" is command, which turns OFF the relay number 1 connected to COM5

Note- every script where you use commands has to start with this declaration:
Declare Function Relay Lib "KMSerial.dll" (ByVal comPort As Integer,ByVal numberRelay As Integer,ByVal command As String) As Boolean

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