Westermo ODW-730-F2 User Manual
Management Guide
6651-2255
Westermo
ODW-730-F2
Westermo Teleindustri AB
©
Industrial Converter
RS-485 to Fibre Optic Link.
Repeater, line and redundant ring
www.westermo.com
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6651-2255
Content
Multidrop, Y-mode configuration ........................................................................................................................................... 3
Prepare the fibre optical network ......................................................................................................................................... 3
Data transport in multidrop, Y-mode configuration ........................................................................................... 4
Multidrop, V-mode configuration ........................................................................................................................................... 5
Prepare the fibre optical network ......................................................................................................................................... 5
Data transport in multidrop, V-mode configuration ........................................................................................... 6
Multidrop dual channel, Y-mode configuration ................................................................................................. 7
Prepare the fibre optical network ................................................................................................................................... 7–8
Data transport in multidrop, dual channel, Y-mode configuration ...................................................... 9
Multidrop, dual channel, V-mode configuration ............................................................................................ 10
Prepare the fibre optical network ............................................................................................................................ 10–11
Data transport in multidrop, dual channel, V-mode configuration ......................................... 12–13
Redundant ring, Y-mode configuration ...................................................................................................................... 14
Prepare the fibre optical network ...................................................................................................................................... 14
Data transport in redundant ring, Y-mode configuration ................................................................ 15–16
Redundant ring, V-mode configuration ..................................................................................................................... 17
Prepare the fibre optical network ............................................................................................................................ 17–18
Data transport in redundant ring, V-mode configuration ................................................................ 19–20
Redundant ring, dual channel, Y-mode configuration .......................................................................... 21
Prepare the fibre optical network ............................................................................................................................ 21–22
Data transport in redundant ring, dual channel, Y-mode configuration ........................... 23–25
Redundant ring, dual channel, V-mode configuration .......................................................................... 26
Prepare the fibre optical network ............................................................................................................................ 26–27
Data transport in redundant ring, dual channel, V-mode configuration ........................... 28–30
LED indication during optical link failure ............................................................................................................. 31
Calculating system processing delay ............................................................................................................................ 32
Reconfiguration time under faulty condition ................................................................................................. 33
About the interfaces ............................................................................................................................................................................ 34
Power terminal ......................................................................................................................................................................................... 34
Optical fibre interfaces .................................................................................................................................................................... 34
RS-485 interface ...................................................................................................................................................................................... 34
Status port ..................................................................................................................................................................................................... 34
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6651-2255
Multidrop, Y-mode configuration
RX2
TX2
End Unit
S2: 3 ON S2: 3 OFF S2: 3 OFF
Device 1
Communicates
with all other devices
Device 2
Communicates
with all other devices
Device 3
Communicates
with all other devices
Device n
Communicates
with all other devices
TX1
RX1
RX2
TX2
End Unit
S2: 3 ON
TX1
RX1
RX2
TX2
RS-485 RS-485 RS-485
Fibre
pair
Fibre
pair
Fibre
pair
RS-485
TX1
RX1
RX2
TX2
TX1
RX1
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
In Y-mode mode an ODW-730 network will behave as a 2-wire bus. I.e. all communication devices will “hear” the data sent out by other communication devices.
Prepare the fibre optical network
• Configure all ODW-730 units for the correct speed and data format using DIPswitches S1:1 – S1:7.
• Select RS-485 2 wire and 4-wire mode using DIP-switch S2:1 (OFF = 2-wire,
ON = 4-wire).
• Enable the RS-485 termination / fail-safe if required using DIP-switches S3:1 – S3:4
(S3:1 and S3:2 = 4-wire termination, S3:3 and S3:4 = 2-wire termination).
• The first and last ODW-730 units must be configured as Multidrop end units by setting DIP-switch S2:3 to the ON position. (End units only have one fibre pair each and
must know that this is a fact)
• Set DIP-switch and S2:6 as desired. See page 34 “Status port” for more information.
• Verify that DIP-switches S1:8, S2:2, S2:4, S2:5 and S2:8 are set in the OFF position.
• Connect the fibre pairs between the units. Always connect CH 1 from one unit to CH
2 on the next unit as shown in the picture above.
• Connect the power supply to all units and verify that all fibre links become active.
(CH 1 and CH 2 LED’s are on, FL L and FL R LED’s are off).
• Connect the communication devices to the corresponding ODW-730 unit.
• The network is now up and running.
Note: In an ODW-730 fibre optic network there will be some additional processing
delays that do not exist in an electrical bus. It is possible that the application must be
adjusted to accommodate these delays if using many ODW-730 units in a large network.
See page 32 “Calculating system processing delay” for more information on how to
determine the overall system delay time.
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6651-2255
Data transport in multidrop, Y-mode configuration
RX2
TX2
Device 1
Sending
Device 2
Receiving
Device 3
Receiving
Device n
Receiving
TX1
RX1
RX2
TX2
TX1
RX1
RX2
TX2
RS-485 RS-485 RS-485
Fibre
pair
Fibre
pair
Fibre
pair
RS-485
TX1
RX1
RX2
TX2
TX1
RX1
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
RX2
TX2
Device 1
Receiving
Device 2
Receiving
Device 3
Sending
Device n
Receiving
TX1
RX1
RX2
TX2
TX1
RX1
RX2
TX2
RS-485 RS-485 RS-485
Fibre
pair
Fibre
pair
Fibre
pair
RS-485
TX1
RX1
RX2
TX2
TX1
RX1
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
Data from comminication device 1 is received at the ODW-730 RS-485 port (as indicated by the TD LED), data bits are retimed according to the preset rate and sent out
on the optical fibre TX1. The next ODW-730 unit receives data at optical fibre RX2
(as indicated by the RD LED), and data is sent out on the RS-485 port. Data is also
repeated out on TX1 on to the next ODW-730 unit.
Data from some other communication device, for example device 3, is processed in the
same way and sent out on both optical fibres TX1 and TX2.
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Multidrop, V-mode configuration
RX2
TX2
End Unit
S1: 8 ON
S2: 3 ON
S1: 8 ON
S2: 3 OFF
S1: 8 ON
S2: 3 OFF
End Unit
S1: 8 ON
S2: 3 ON
Device 1
Communicates
with devices 2 througt n
Device 2
Communicates
with device 1 only
Device 3
Communicates
with device 1 only
Device n
Communicates
with device 1 only
TX1
RX1
RX2
TX2
TX1
RX1
RX2
TX2
RS-485 RS-485 RS-485
Fibre
pair
Fibre
pair
Fibre
pair
RS-485
TX1
RX1
RX2
TX2
TX1
RX1
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
In V-mode an ODW-730 network will behave as a 4-wire bus. Where the first ODW-730
(leftmost in the picture below) will able to communicate in full duplex with any other
unit, but other units are incapable of communicating with each other.
Prepare the fibre optical network
• Configure all ODW-730 units for the correct speed and data format using
DIP-switches S1:1 – S1:7.
• Select RS-485 2 wire and 4-wire mode using DIP-switch S2:1 (OFF = 2-wire,
ON = 4-wire).
• Enable the RS-485 termination / fail-safe if required using DIP-switches S3:1 – S3:4
(S3:1 and S3:2 = 4-wire termination, S3:3 and S3:4 = 2-wire termination)
• Set DIP-switch S1:8 in the ON position (V-mode) on all ODW-730 units.
• The first and last ODW-730 units must be configured as Multidrop end units by
setting DIP-switch S2:3 to the ON position. (End units only have one fibre pair
each and must know that this is a fact)
• Set DIP-switch S2:6 as desired. See page 34 “Status port” for more information.
• Verify that DIP-switches S2:2, S2:4, S2:5 and S2:8 are set in the OFF position.
• Connect the fibre pairs between the units. Always connect CH 1 from one unit to
CH 2 on the next unit as shown in the picture above.
• Connect the power supply to all units and verify that all fibre links become active.
(CH 1 and CH 2 LED’s are on, FL L and FL R LED’s are off).
• Connect the communication devices to the corresponding ODW-730 unit.
• The network is now up and running.
Note: In an ODW-730 fibre optic network there will be some additional processing
delays that do not exist in an electrical bus. It is possible that the application must be
adjusted to accommodate these delays if using many ODW-730 units in a large network.
See page 32 “Calculating system processing delay” for more information on how to
determine the overall system delay time.
6
6651-2255
Data transport in multidrop, V-mode configuration
RX2
TX2
Device 1
Sending
Device 2
Receiving
Device 3
Receiving
Device n
Receiving
TX1
RX1
RX2
TX2
TX1
RX1
RX2
TX2
RS-485 RS-485 RS-485
Fibre
pair
Fibre
pair
Fibre
pair
RS-485
TX1
RX1
RX2
TX2
TX1
RX1
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
RX2
TX2
Device 1
Receiving
Device 2
Not sending or
receiving any data
Device 3
Sending
Device n
Not sending or
receiving any data
TX1
RX1
RX2
TX2
TX1
RX1
RX2
TX2
RS-485 RS-485 RS-485
Fibre
pair
Fibre
pair
Fibre
pair
RS-485
TX1
RX1
RX2
TX2
TX1
RX1
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
Data from comminication device 1 is received at the ODW-730 RS-485 port (as indicated by the TD LED), data bits are retimed according to the preset rate and sent out
on the optical fibre TX1. The next ODW-730 unit receives data at optical fibre RX2
(as indicated by the RD LED), and data is sent out on the RS-485 port. Data is also
repeated out on TX1 on to the next ODW-730 unit.
Data from some other communication device, for example device 3, is processed in the
same way and sent out on optical fibre TX2. Intermediate ODW-730 units will receive
this data at optical fibre RX1 and repeat it out on optical fibre TX2. But, intermediate
units will not send any data received at RX1 on to the RS-485 port. Only the first
ODW-730 (leftmost in the picture above) will have incomming data from optical fibre
RX1 sent out on the RS-485 port.
I.e. the first ODW-730 is able to communicate in full duplex with any other unit, but
other units are incapable of communicating with each other.
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Multidrop dual channel, Y-mode configuration
RX2
TX2
End Unit
S2: 3 ON
S2: 4 OFF
S2: 3 OFF
S2: 4 ON
S2: 3 OFF
S2: 4 OFF
End Unit
S1: 3 ON
S2: 4 ON
Device 1
Communicates
with device 3 on the
primary data channel
Device 2
Communicates
with device 4 on the
secondary data channel
Device 3
Communicates
with device 1 on the
primary data channel
Device 4
Communicates
with device 2 on the
secondary data channel
TX1
RX1
RX2
TX2
TX1
RX1
RX2
TX2
RS-485 RS-485 RS-485
Fibre
pair
Fibre
pair
Fibre
pair
RS-485
TX1
RX1
RX2
TX2
TX1
RX1
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
In dual channel mode it is possible to use two separate data streams in a single ODW730 network. However, all ODW-730’s must be set to the same speed and data format.
This, of course, limits the number of possible applications for a dual channel network.
In Y-mode mode an ODW-730 network will behave as a 2-wire bus. I.e. all communication devices will “hear” the data sent out by other communication devices.
Prepare the fibre optical network
• Configure all ODW-730 units for the correct speed and data format using DIPswitches S1:1 – S1:7. Again, notice that all ODW-730’s must be set to the same
speed and data format.
• Select RS-485 2 wire and 4-wire mode using DIP-switch S2:1 (OFF = 2-wire,
ON = 4-wire).
• Enable the RS-485 termination / fail-safe if required using DIP-switches S3:1 – S3:4
(S3:1 and S3:2 = 4-wire termination, S3:3 and S3:4 = 2-wire termination)
• The first and last ODW-730 units must be configured as Multidrop end units by
setting DIP-switch S2:3 to the ON position (End units only have one fibre pair
each and must know that this is a fact).
• All ODW-730 units that are to use the primary data channel (“blue” units in the
picture above) must have DIP-switch S2:4 set to the OFF position. Units that are
to use the secondary data channel (“orange” units in the picture above) must have
DIP-switch S2:4 set to the ON position.
• Set DIP-switch S2:6 as desired. See page 34 “Status port” for more information.
• Verify that DIP-switches S1:8, S2:1, S2:2, S2:5 and S2:8 are set in the OFF position.
• Connect the fibre pairs between the units. Always connect CH 1 from one unit to
CH 2 on the next unit as shown in the picture above.
• Connect the power supply to all units and verify that all fibre links become active.
(CH 1 and CH 2 LED’s are on, FL L and FL R LED’s are off).
• Connect the communication devices to the corresponding ODW-730 unit.
• The network is now up and running.
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Note: In an ODW-730 fibre optic network there will be some additional processing
delays that do not exist in an electrical bus. It is possible that the application must be
adjusted to accommodate these delays if using many ODW-730 units in a large network.
See page 32 “Calculating system processing delay” for more information on how to
determine the overall system delay time.
9
6651-2255
Data transport in multidrop, dual channel, Y-mode configuration
RX2
TX2
Device 1
Sending data to
device 3 on the
primary channel
Device 2
Sending data to
device 4 on the
secondary channel
Device 3
Receiving data from
device 1 on the
primary channel
Device 4
Receiving data from
device 4 on the
secondary channel
TX1
RX1
RX2
TX2
TX1
RX1
RX2
TX2
RS-485 RS-485 RS-485
Fibre
pair
Fibre
pair
Fibre
pair
RS-485
TX1
RX1
RX2
TX2
TX1
RX1
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
RX2
TX2
Device 1
Receiving data from
device 3 on the
primary channel
Device 2
Receiving data from
device 4 on the
secondary channel
Device 3
Sending data to
device 1 on the
primary channel
Device 4
Sending data to
device 2 on the
secondary channel
TX1
RX1
RX2
TX2
TX1
RX1
RX2
TX2
RS-485 RS-485 RS-485
Fibre
pair
Fibre
pair
Fibre
pair
RS-485
TX1
RX1
RX2
TX2
TX1
RX1
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
The first ODW-730 unit recieives data from communications device 1 on the RS-485
port and sends it out on optical fibre TX1 using the primary data channel.
The second ODW-730 unit receives primary channel data on optical fibre RX2. Primary
channel data is repeated out on optical fibre TX1. The second ODW-730 unit also
receives data from communications device 2 on the RS-485 port. The RS-485 data is sent
out on both optical fibres TX1 and TX2 using the secondary data channel.
The third ODW-730 unit receives both primary and secondary channel data on optical
fibre RX2. Both primary and secondary data are repeated out on optical fibre TX1, but
only the primary channel data is sent out on the RS-485 port.
The fourth ODW-730 unit receives both primary and secondary channel data on optical
fibre RX2, but only the secondary channel data is sent out on the RS-485 port.
The fourth ODW-730 unit recieives data from communications device 4 on the RS-485
port and sends it out on optical fibre TX2 using the secondary data channel.
The third ODW-730 unit receives secondary channel data on optical fibre RX1.
Secondary channel data is repeated out on optical fibre TX2. The third ODW-730 unit
also receives data from communications device 3 on the RS-485 port. The RS-485 data is
sent out on both optical fibres TX1 and TX2 using the primary data channel.
The second ODW-730 unit receives both primary and secondary channel data on optical
fibre RX1. Both primary and secondary data are repeated out on optical fibre TX2, but
only the secondary channel data is sent out on the RS-485 port.
The first ODW-730 unit receives both primary and secondary channel data on optical
fibre RX1, but only the primary channel data is sent out on the RS-485 port.
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6651-2255
Multidrop, dual channel, V-mode configuration
RX2
TX2
Primary – End Unit
S1: 8 ON
S2: 3 ON
S2: 4 OFF
S1: 8 OFF
S2: 3 OFF
S2: 4 ON
S1: 8 ON
S2: 3 OFF
S2: 4 OFF
End Unit
S1: 8 ON
S2: 3 ON
S2: 4 ON
Device 1
Communicates
with device 3 and 4 on
the primary data channel
Device 2
Communicates
with device 5 on the
secondary data channel
Device 3
Communicates
with device 1 on the
primary data channel
Device 5
Communicates
with device 2 on the
secondary data channel
TX1
RX1
RX2
TX2
TX1
RX1
RX2
TX2
RS-485 RS-485 RS-485
Fibre
pair
Fibre
pair
Fibre
pair
RS-485
TX1
RX1
RX2
TX2
TX1
RX1
PWR
FP
TD
RD
PWR
FP
TD
RD
PWR
FP
TD
RD
S1: 8 ON
S2: 3 OFF
S2: 4 OFF
Device 4
Communicates
with device 1 on the
primary data channel
RS-485
Fibre
pair
RX2
TX2
TX1
RX1
PWR
FP
TD
RD
PWR
FP
TD
RD
In dual channel mode it is possible to use two separate data streams in a single ODW730 network. However, all ODW-730’s must be set to the same speed and data format.
This, of course, limits the number of possible applications for a dual channel network.
In V-mode an ODW-730 network will behave as a 4-wire bus. Where the first ODW-730
(leftmost in the picture below) will able to communicate in full duplex with any other
unit, but other units are incapable of communicating with each other.
Prepare the fibre optical network
• Configure all ODW-730 units for the correct speed and data format using DIPswitches S1:1 – S1:7. Again, notice that all ODW-730’s must be set to the same speed
and data format.
• Select RS-485 2 wire and 4-wire mode using DIP-switch S2:1 (OFF = 2-wire,
ON = 4-wire).
• Enable the RS-485 termination / fail-safe if required using DIP-switches S3:1 – S3:4
(S3:1 and S3:2 = 4-wire termination, S3:3 and S3:4 = 2-wire termination)
• The first and last ODW-730 units must be configured as Multidrop end units by
setting DIP-switch S2:3 to the ON position (End units only have one fibre pair
each and must know that this is a fact).
• All ODW-730 units that are to use the primary data channel (“blue” units in the
picture above) must have DIP-switch S2:4 set to the OFF position. Units that are
to use the secondary data channel (“orange” units in the picture above) must have
DIP-switch S2:4 set to the ON position.
• The first ODW-730 unit using the secondary data channel (second from left in
• Set DIP-switch S1:8 in the ON position (V-mode) on all other ODW-730 units.
• Set DIP-switch S2:6 as desired. See page 34 “Status port” for more information.
• Verify that DIP-switches S2:1, S2:2, S2:5 and S2:8 are set in the OFF position.
the picture above) must have DIP-switch S1:8 set to the OFF position (Y-mode).
The reason for this is that the data will be sent in the wrong direction if this unit
is also set for V-mode.
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6651-2255
• Connect the fibre pairs between the units. Always connect CH 1 from one unit to
CH 2 on the next unit as shown in the picture above.
• Connect the power supply to all units and verify that all fibre links become active.
(CH 1 and CH 2 LED’s are on, FL L and FL R LED’s are off).
• Connect the communication devices to the corresponding ODW-730 unit.
• The network is now up and running.
Note: In an ODW-730 fibre optic network there will be some additional processing
delays that do not exist in an electrical bus. It is possible that the application must be
adjusted to accommodate these delays if using many ODW-730 units in a large network.
See page 32 “Calculating system processing delay” for more information on how to
determine the overall system delay time.
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