Section 3: Installation

Reference, Installation, and Operations Manual

June 2013

3-9000-743 Rev S

 

 

Port B Driver Configuration

The serial communication Port B driver is configured via CPU Board switch banks S4, S5, and S7 and Field Connection Board switch bank S1.

Port B supports a special override mode which forces the port to use known communication values (19200 baud, address 32). (Note that the protocol is auto-detected.) This mode is expected to be used during meter commissioning (to establish initial communication) and in the event that the user cannot communicate with the meter (possibly due to an inadvertent communication configuration change).

The Port B communication override mode is entered by switching CPU Board S2-1 (switch bank 2, position 1) from the OPEN position to the CLOSED position. Port B remains in the override mode until either (1) the port configuration is changed (via software), (2) two minutes has elapsed (at which time the port reverts to its current configuration), or (3) the S2-1 switch is changed back to the OPEN position.

It is the action of changing S2-1 from the OPEN to CLOSED position (not being in the CLOSED position) that causes the override mode to be entered.

To configure Port B for RS-232 operation, set the switches as indicated in the table below (see Figure 3-24for switch bank locations):

Table 3-28 Port B RS-232 driver settings

Board

Switch

Position

 

 

 

CPU

S4-1

RS232

 

 

 

 

S4-2

RS232

 

 

 

 

S5-2

FULL

 

 

 

 

S7-1

RS232

 

 

 

 

S7-2

RS232

 

 

 

Field Connection

S1-5

TERM OFF

 

 

 

 

S1-6

TERM 0FF

 

 

 

 

S1-7

FULL DUPLX

 

 

 

 

S1-8

FULL DUPLX

 

 

 

76

Communication settings