Hardware Features - OE Max Controls NX7 Installation Instructions Manual

Hardware Features

COM2: RS-232C/RS-485
8 pin female RJ45
(NX7s controllers
support RS-485 only on
COM2.)
Power supply
connector
COM1: RS-232C/RS-485
9pin female D-Sub
(NX7s controllers
support RS-232C only
on COM1.)
COM1 DIP Switch (SW2)
Open the communication housing case and adjust the DIP switch as follows :
ON
1 2
IMPORTANT
24V dc Panel Input terminal block
auxiliary fixing
output hole
(for sensor
Battery
power)
pocket
Expansion
module
connector
output terminal block
COM1 DIP switch (SW2)
- Selects RS-232C or RS-485
- Sets termination resistance
(Applicable for NX7 controllers
only)
No. Status
Off Enables RS-232C communication for COM1
Enables RS-485 communication for COM1
1
On (Used for hand-held programmer and multi-
drop connections, etc.)
Off Disables termination for RS-485 communication
2
On Enables termination for RS-485 communication
• Use of the COM1 DIP switch is applicable for NX7
controllers only.
NX7s controllers support RS232C only on COM1.
• The baud rate is automatically detected and adjusted
within the range of 4800 to 38400 bps. If there is no
communication for more than one minute, the speed is
automatically detected and configured again.
• Termination resistance is connected to the end of the
communication line to remove mutual communication
interferences or signal distortions that can occur
between connected controllers and peripherals.
• Use an external connector for termination for COM2
port.
Status LEDs
LED Description
On when processor is in
operation.
RUN
Flashes when processor is
pausing.
On when the program can be
PROG
modified or downloaded.
On when processor fault is
detected.
ERR Flashes when battery is not
installed or needs to be
replaced.
On when power is supplied
COM1
normally.
Flashes when communication is
COM2
progressing via the port
Operation mode switch
Posi-
Description
tion
Processor is in operation.
RUN
Program editing is not allowed.
Remote program mode.
Run or pause operation,
RMT
program editing and
downloading are allowed.
Processor is in stop mode.
PROG
Program editing is allowed.
Description
9