weed instrument EOTec 2000 MUX User manual

Safet
y
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g
Information
Connect the DIN Rail, via the Model 2A09 End
Clamp, to protective earth ground with low
impedance. The modules are grounded to PE
when they are snapped onto the DIN Rail. A
Model 2A09 End Clamp on each side of the
module bundle on the DIN rail prevents
accidental disconnection of the modules’
interconnection bus.
Weed Instrument Co., Inc.
Fiber Optics Division
Phone: [phone]
512-434-2850
Fax: [phone]
Email: [email protected]
Visit: www.weedinstrument.com
Important Notice - Before utilizing the product, the user should
determine the suitability of the product for its intended use. The
user assumes all risk and liability in connection with such use.
WEED INSTRUMENT'S WRITTEN WARRANTY FOR THE
PRODUCT IS MADE IN LIEU OF ALL OTHER WARRANTIES,
EXPRESSED OR IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. The user's exclusive remedy for breach of Weed
Instrument's written warranty shall be the repair or replacement
of such quantity of product which is proven to be defective. In no
case shall Weed Instrument be liable for any special, incidental,
or consequential damages based upon breach of contract,
negligence, strict liability or other legal theory.
Publication Number: RM0900177 Rev. 7/04
Weed Instrument
Fiber O
p
tics
EOTec 2000 MUX Model
2M30
Dual Channel, RS-232/485
Installation Instructions
2 Channel, RS-232 or RS-485
Serial Communications Module
For use with the EOTec 2000
Multiplexer (MUX)
Power Requirements 9VDC @ 200mA via
the interconnection Bus
from a 2A06 or 2A16
power supply or the
MUX Base Module
(2M55, 2M57, 2M59 or
2M61)
Connections Pluggable, Cage Clamp
Screw Terminal Blocks,
Accept 12 to 24 AWG
Serial Communications Bi-directional,
Half-Duplex
Baud Rates RS-232: 9.6K to 115.2K
RS-485: 9.6K to 230.4K
Wire Cable Termination
RS-232 none required
RS-485 User supplied based on
cable specifications
Maximum Devices
and Cable Length
RS-232 1 Device, 50ft (15m)
RS-485 30 Devices, 2000ft
(600m)
Ambient Conditions -40 to 85°C
0 to 95% Humidity
(Non-condensing)
Mounting 35mm DIN Rail
Weight < 9oz
Flammability Rating UL V-0
S
p
ecifications

POWER: The 2M22 obtains its operating power
from the module interconnection bus. The
operating power originates from the MUX Base
Module (2M55, 2M57, 2M59 or 2M61) or from an
EOTec 2000 universal power supply (2A06 or
2A16)
SERIAL DATA: The Channel 1 output terminal
block is towards the bottom-front of the unit and
the Channel 2 output terminal block is directly
behind and below Channel 1. On both terminal
blocks, the individual screw terminal connections
are numbered from left-to-right as follows:
RS-232
Terminal 1 no connection
Terminal 2 Common (COM)
Terminal 3 Transmit (TXD)
Terminal 4 Receive (RXD)
RS-485
Terminal 1 no connection
Terminal 2 no connection
Terminal 3 A Input/Output
Terminal 4 B Input/Output
Description
The Model 2M30, RS-232/485 Module is
designed to provide two channels of bi-
directional, half-duplex serial communications.
The input signals from a 2M30 module on one
end of the fiber link are passed to its MUX Base
Module where they are multiplexed and
converted to a fiber optic signal. The MUX Base
Module at the other end of the fiber link de-
multiplexes the signals and passes them to the
mated 2M30 Module for conversion back to their
original serial data format.
Non-illuminated LED status indicators or LED
indicators that are red or flashing red can point to
problem areas of the individual modules of the
EOTec 2000 MUX system.
The upper LED indicator on each module is
illuminated green when operating power is present
at the module. If this LED is not illuminated, verify
that power is applied, that the modules’
interconnection bus is fully seated at each module,
that the voltage levels and current ratings of the
power source are sufficient for operation and that
the polarities of the connections are correct.
Cycling the power will reset the units and restart
internal programming.
On the MUX Base Module, directly above the fiber
ports is a bi-color (red/green) LED status indicator.
When this LED is green, the MUX Base Module is
operating normally. If this LED is illuminated
constant red, it is indicating that its receive optical
signal level is inadequate for system operation.
Verify the fiber optic cables are not broken, are
connected from TX to RX and are securely
fastened. If this LED is flashing red it is indicating
duplicate or non matching I/O module addresses.
Verify that there is an address match between the
input module and its corresponding output module
and that no two modules on the same side of the
fiber link are set to the same address.
On the I/O modules, there are two channel status
LED indicators marked CH1 and CH2 that are
illuminated Green when input/output signals are
present. If a channel status LED indicator is not
illuminated, verify that the input/output connections
are connected to the correct terminals and that the
polarities are also correct. On the analog input
modules, measure the input signal levels and
ensure they are present and are at least 1mVDC
for 0 to 10VDC input module or 0.002mADC for 4
to 20mA input module. These same levels on
each output of the analog output modules will
illuminate its corresponding channel status LED.
If you are still experiencing difficulty, contact the
factory for assistance.
System Troubleshooting Tips
Connections
Operational Settings
Use a small screwdriver to press on the latches
(indentations) at the top and bottom of the
housing. Slide the housing open.
MODULE ADDRERSS SETTING: A two position
DIP switch, SW1, is used to set the address of
the module and it must match the address of its
mating module at the opposite end of the fiber
link. Do not set two modules at the same end of
the fiber link to the same address setting. The 4
possible address settings are:
DIP switch locations
CHANNEL SETTINGS: The setting of a five
position DIP switch determines each channel’s
communications parameters, independently. Use
SW2 to set the Channel 1 parameters and use
SW3 to set the Channel 2 parameters. The
settings for the switches are as follows:
Position 1:
ON = Use parity bit; OFF = No parity bit
Position 2:
ON = RS-485; OFF = RS-232
Positions 3, 4 & 5 respectively (Baud rate):
ON, OFF, ON = 9.6K Baud
ON, OFF, OFF = 19.2K Baud
OFF, ON, ON = 38.4K Baud
OFF, ON, OFF = 57.6K Baud
OFF, OFF, ON = 115.2K Baud
OFF, OFF, OFF= 230.4K Baud (RS-485)
Close the housing by sliding it back together until
both the top and bottom latches "click" into place.
Address SW1-1 SW1-2
00 OFF OFF
01 OFF ON
10 ON OFF
11 ON ON