Remote Processing CX-10 - Manual (Page 6)

SETUP AND OPERATION - MODBUS and BASIC SECTION 2
Page 2-1
Figure 2-1 Power and serial connection
INTRODUCTION
SETUP AND OPERATION SECTION 2
The CX-10 is ready to operate over modbus as soon as
you connect it to a PC and apply power. This section
describes different modbus hardware connection
methods.
The CX-10 is programmable in Basic. Generally, Basic
operation is independent of modbus. However,
interactions can occur. For example, relays can be
turned on or off over modbus. A Basic program can
perform the same operations. It is anticipated that the
Basic program will act as a safety program should
communications fail over modbus.
OPERATING PRECAUTIONS
The CX-10 is designed to operate in industrial settings.
However it is not indestructible. To avoid damaging the
CX-10, observe the following precautions:
1. Limit power supply voltage to 30 volts DC. The
board will not operate with AC voltage as a power
source.
2. Limit relay connections to 115VAC, 2 amperes.
3. Limit opto buffer inputs to 24 volts.
INITIAL SETUP
You will need the following equipment to verify
operation for either modbus operation or Basic
programming.
! CX-10 embedded controller
! VTC-9F serial cable
!
Power supply, 9 to 30 VDC @ 500 ma
Refer to SECTION 4, "SERIAL PORT PIN OUT", for
wiring information to make your own serial cable.
Connect your external power to the terminals marked
“Ext Pwr.” and “Gnd” on the board. External power “+”
supply goes to “Ext Pwr.” termial. See Figure 2-1 for
location.
You may connect a 12V lead acid battery to the
terminals marked “Batt” and Gnd”. Battery “+” terminal
goes to “Batt” terminal.
The next steps will take you through communicating to
the CX-10 through modbus or a terminal program.
Either method can be used to verify initial
communication.
Communication Setup The next step is communicating to your PC. There are