Emerson MRLDS Setting the Baud Rate Dip Switches, Hand-Held Terminal Set Tings, Mrlds Setup

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

I/O NETWORK OR
COM A AND D									OFF = 9600 BAUD ON
BAUD RATE
									MODBUS
(GW to E2)
									ON = 19200 BAUD ON
	1	2	3	4	5	6	7	8	MODBUS
ON									(GW to MRLDS)

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 hand-held terminal can be used to view status information, enable unit addresses, and is connected directly to the Gateway board via the hand-held terminal jack.

MRLDS GATEWAY 810-3040 VER:1.10B03 ( PRESS )

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 4-15).

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: 1

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 (770-425- 2724) to verify if the MRLDS unit should be replaced.

Possible states (ST) are:

•WARMUP - MRLDS is warming up.

•NORMAL - MRLDS has completed warm-up and is operating normally.

•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 026-1307 Rev 1 11-30-07