Page 86 - Gas Detection Systems Training Manual
P. 86
CALIBRATION ALARM RELAY
* NETWORK
NETWORK ID MENU * MODBUS SETTINGS
PREVIOUS MENU
RS485 Bus Settings Menu
Select ENTER on MODBUS SETTINGS to bring up the Modbus Settings Menu.
The operator may change the Modbus RS485 settings by selecting ENTER on 485 BUS MENU. The following sub-menu will show:
485 Bus Default Settings
Move the cursor down to the NETWORK menu and select ENTER.
485 Bus Alternate Settings
The operator can set the 485 bus to communicate using SEC DEFAULT line values by moving the cursor to COMM- DEFAULT and selecting ENTER. The default values are 9600 baud, 8 data bits, no parity and 2 stop bits. The following display is shown:
This is just an informational box to indicate what the settings are. The operator may select ENTER to return to the 485 bus menu.
The operator can set the 485 bus to communicate using SEC ALTERNATE line values by moving the cursor to COMM- ALTERNATE and selecting ENTER. The alternate values are 9600 baud, 8 data bits, no parity and 1 stop bit. The following display is shown:
This is just an informational box to indicate what the settings are. The operator may select ENTER to return to the 485 bus menu.
485 Bus Custom Settings Menu
The operator can set the 485 bus to custom communication settings by moving the cursor to COMM- CUSTOM and selecting ENTER. The following screen will show:
Operator Manual
SEC3120 Digital Transmitter
Page 25 of 40
Sensor Electronics Corporation
The operator may change the data bits by moving the cursor to DATA BITS and select ENTER, then using the UP/DN arrows to
P/N 1580281 Rev 10, 20150707
ONLINE SENSORS NET ID
* 485 BUS MENU
YES / NO UNIQUE UNIQUE
* COMM- DEFAULT COMM- ALTERNATE COMM- CUSTOM PREVIOUS MENU
DEFAULT COMM PARAMS F BITS: 8 S BITS: 2 PAR: N RATE: 9600
-ENT- TO CONTINUE
COMM- DEFAULT
* COMM- ALTERNATE COMM- CUSTOM
PREVIOUS MENU
ALT. COMM PARAMS
F BITS: 8 S BITS: 1 PAR: N RATE: 9600
-ENT- TO CONTINUE
COMM- DEFAULT
COMM- ALTERNATE * COMM- CUSTOM
PREVIOUS MENU
* DATA BITS EIGHT * STOP BITS TWO PARITY NONE BAUD RATE 9600
