E2, Einstein, and REFLECS Controllers (The RLDS Gateway Board)
Connecting Communication Devices • 19
4.2. E2, Einstein, and
REFLECS Controllers
(The RLDS Gateway
Board)
The RLDS may be connected to an Emerson
controller using a Gateway Board. The Gateway
Board is a special interface device that allows an E2,
Einstein, or REFLECS site controller to communicate
with up to three RLDS units as if each of them were a
standard 16AI Analog Input board, and allows for
programming with the Hand-Held Terminal (HHT).
The Gateway Board communicates with the RLDS
units via the MODBUS network, which is
connected to the Gateway’s “Receiver Bus” network
terminal. The Gateway communicates with site
controllers (E2, Einstein, or REFLECS) via the
RS485 I/O Network (COM A & COM D for
REFLECS).
In addition to being an interface with the site
controller, the Gateway Board also allows you use a
Hand-held Terminal (HHT) device to program the
RLDS and view status.
4.2.1. Powering the Gateway Board
The Gateway board requires 24VAC power from a
Class 2
center-tapped
transformer.
Emerson supplies several sizes of center-tapped
transformers for powering multiple 16AIs, 8ROs, and
other RS485 peripheral boards of the E2, Einstein,
and REFLECS systems.
Refer to your controller’s user manual for
information on how to use the center-tapped
to power multiple
RS485 I/O devices.
shows how to connect the 56VA and
80VA transformers to the Gateway power connector.
Figure 4-6
- RLDS Gateway Board Layout (P/N 810-3760)
NOTE: Before installing the Gateway board,
verify that jumper JP7 (if present on the board)
is set to the “NORMAL” position (not the
“TEST” position). Operating the Gateway with
the jumper in TEST position may cause board damage.
12
12
JP7
Input Voltage
24VAC, Class 2, 50/60Hz
Power
5VA
Table 4-1
- Gateway Power Requirements
Three-Board
Six-Board
P/N
640-0056
640-0080
Power Rating
56 VA
80 VA
Table 4-2
- Power Ratings for Emerson Transformers
Figure 4-7
- Pinout for the 56VA (640-0056) and 80VA
(640-0080) Transformers
Содержание GW-810-3760
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Страница 37: ...30 RLDS I O Manual 026 1309 Rev 11 Figure 4 22 Connecting the Gateway to the RS485 Network ...
Страница 84: ...Appendix B System Menu Map B 79 Appendix B System Menu Map ...
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