Mrlds Gateway - Emerson MRLDS Operation Manual

bits with no parity and 2 (two) stop bits.
Register PDU
Name Address
Fault and 0x0000
Module
State
Gas 0x0001
Number
Gas Con- 0x0002
centration
Gas R-22 = 6
Numbers
R-404A = 27
R-134a = 15
Table 4-3
- RS485 Output Specifications
4.3

MRLDS Gateway

4.3.1 MRLDS Gateway Setup on
I/O Network
Modbus versions of the MRLDS must be connected to
the 810-3040 MRLDS Gateway. The MRLDS Gateway
can be mapped in either of two ways: it can be set up on
I/O Net as an IRLDS application or as a 16AI board.
Select by setting the Gateway's dip switch #5 to the OFF
or ON position (Figure 4-6).
MRLDS Gateway
Logical Range
Address
1 Under Range
2 (msb)
Under Volt-
age 8 (msb)
Temperature
10 (msb)
Lamp Fail
40 (msb)
Test Mode
80 (msb)
Warm Up
Complete
0 (Lsb)
Cal/Setup
2 (Lsb)
Factory
Mode
4 (Lsb)
Trouble
Mode
8 (Lsb)
2 0 to 40
3 -20 to 1050
(ppm)
SELECT I/O NET MODE
OFF = IRLDS
ON = 16AI
ON
OFF = IRLDS
Figure 4-6
- I/O Network Modes
4.3.2 Gateway Connections
Up to 12 MRLDS units may be connected to the Gate-
way board (P/N 810-3040). The Gateway board can inter-
face with a site controller as a 16AI or as an IRLDS. If the
site controller is an Einstein or E2, it is recommended to
interface them as an IRLDS. Multiple Gateways can be
used, each with up to 12 connected MRLDS units.
4.3.3 The Gateway Board
Figure 4-7
- MRLDS Gateway Board Layout (810-3040)
MRLDS Modbus Version (809-101x)
ON = 16AI
7
•