4.3.9Setting the Baud Rate Dip Switches
Dip switches 6 and 7 control the baud rate at which the Gateway communicates with the site controller on the RS485 Network. These switches must be set to the same baud rate setting as the controller you are using (Einstein, RMCC, or E2), and defaults to 9600 baud. Dip switch 8 controls the baud rate at which the Gateway communicates with the MRLDS. For 9600 baud, set dip switch 8 to the OFF position. For 19200 baud, set dip switch 8 to the ON position (always use 19200 baud for MRLDS).
GATEWAY
DIP SWITCH
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BAUD RATE |
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I/O NET BAUD RATE SETTINGS
9600 19200
ALWAYS USE 19200 BAUD WITH MRLDS
Figure 4-13 - Dip Switch Settings for Gateway Baud Rate
4.3.10Hand-Held Terminal Set-
tings
The
MRLDS GATEWAY 
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FAIL I/O NET
Figure 4-14 - MRLDS HHT Home Screen
4.3.10.1MRLDS Setup
From the HHT Home screen (F1), press the down arrow key to navigate to the Baud Rate/Address screen (Figure
I/O ADDR: | 1 |
I/O BAUD: | 9600 |
MOD BAUD: | 19200 |
FAIL I/O NET
Figure 4-15 - Baud Rate/Address Screen
The Baud Rate/Address screen displays the Gateway I/O Network address (I/O ADDR), the I/O Network baud rate between the Gateway and the E2 (I/O BAUD), and the Modbus baud rate between the Gateway and the MRLDS devices (MOD BAUD).
4.3.10.2Select Screen
Press the down arrow again to navigate to the Select screen (or press F2). From the Select screen you can see status, setup, and firmware version information.
To select, press the right arrow until it appears next to SELECT and press 1, 2, or 3 in the list. Press the down arrow twice to move to the desired screen.
SELECT: 
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1 - STATUS
2 - SETUP/ONLINE
3 - FW REVISION FAIL I/O NET
Figure 4-16 - Select Screen
4.3.10.3Status Screen
1 - The Status screen displays general status informa- tion about the MRLDS such as device numbering, count information (gas concentration in ppm), the type of refrig- erant gas being monitored (MRLDS jumpers set by the user), and whether an alarm has been issued. An alarm indicates an MRLDS failure and that the MRLDS should be replaced. Call the CPC Service Department
Possible states (ST) are:
•WARMUP - MRLDS is warming up.
•NORMAL - MRLDS has completed
•OFFLINE - MRLDS has lost communication.
•UNUSED - This address is not being used.
•FAIL - MRLDS has reported a fail state. Check the ALM field for specification.
10 • MRLDS I&O Manual |