Emerson GW-810-3760, Installation And Operation Manual

Page: 29 / 88

22 • RLDS I&O Manual 026-1309 Rev 11
4.2.4.2. Setting the Board Numbering Dip
Switch
The first step is to determine whether the RLDS
Gateway should emulate 16AI boards – known as the
REFLECS mode, or if the RLDS Gateway should
emulate IRLDS units in Einstein/E2 – known as the
Einstein mode. When dip switch 8 is in the ON
position it selects the REFLECS mode, and when dip
switch 8 is in the OFF position it selects the Einstein
mode.
REFLECS Mode
In the REFLECS mode the Gateway board responds
as a series of three 16AI Analog Input boards
numbered in succession. Addressing the “boards”
represented by the Gateway is achieved by setting dip
switches 1 through 4 to the first board number to be
used. When this number is set, the Gateway will also
use the next two board numbers above the first board
number. For example, if a Gateway dip switch is set
to board number 3, the Gateway will use board
numbers 3, 4, and 5 on the I/O Network.
Once the RLDS Gateway has been added to the
network, the I/O Board Device Numbers screen in
REFLECS (from the REFLECS Home screen press
7
,
7
,
2
) will also need to be adjusted to show the correct
number of input boards. This number should be the
total number of input boards plus the number of
RLDS units.
Since the RLDS Gateway can support up to three (3)
RLDS units, the first RLDS unit maps to the first
RLDS Gateway address, and the second RLDS unit
maps to the second RLDS Gateway address;
therefore, if the RLDS Gateway address = 3, then
RLDS unit #1 will appear on 16AI #3 and so forth.
If you are not using all three RLDS units, you can
disable them on the Gateway (see Section 11.2.,
RLDS Enable Screen ). If they are disabled on the
RLDS Gateway, then the corresponding addresses are
free to be used by other 16AI boards.
Note that because the Gateway reserves three 16AI
Board numbers for its own use, an I/O Network with
a Gateway is limited to thirteen (13) 16AI boards.
Note also that since 16 is the highest board number
possible, a Gateway’s dip switch may not be set to any
number above 14.
Einstein Mode
In the Einstein mode the Gateway board responds as
a series of three IRLDS units numbered in
succession. Addressing the “boards” represented by
the Gateway is achieved by setting dip switches 1
through 4 to the first unit number to be used. When
this number is set, the Gateway will also use the next
two board numbers above the first board number. For
example, if a Gateway dip switch is set to board
number 4, the Gateway will use IRLDS numbers 4, 5,
and 6. Once the RLDS Gateway has been added to the
network, the
Connected I/O Boards and Controllers
screen in E2 (from the E2 Main Menu press 7 , 7 , 2 )
will also need to be adjusted to show the correct
number of IRLDS units. This number should be the
total number of RLDS, IRLDS II, and MRLDS (up to
16 can be mapped to one IRLDS) units being used on
that Einstein/E2.
Since the RLDS Gateway can support up to three (3)
RLDS units, the first RLDS unit maps to the first
RLDS Gateway address, and the second RLDS unit
maps to the second RLDS Gateway address;
therefore, if the RLDS Gateway address = 4, then
RLDS unit #1 will appear on IRLDS #4 and so forth.
If you are not using all three RLDS units, you can
disable them on the Gateway (see Section 10.2.,
RLDS Enable Screen
). If they are disabled on the
RLDS Gateway, then the corresponding addresses are
free to be used by other Gateways mapping in other
RLDS, IRLDS II, or MRLDS units.
For example, if you had an IRLDS II Gateway with
two IRLDS II units, and an RLDS Gateway with one
RLDS, then you could set the IRLDS II for
address 1 and disable the third IRLDS II unit on the
Gateway. Then set the RLDS Gateway for address 3
and disable the second and third RLDS units on this
Gateway. In E2 you would select three IRLDS
Figure 4-13 - Connecting the Gateway to the RS485 Network