Page 85 - Gas Detection Systems Training Manual

the operator may create a configuration greater than ten total bits, the transceivers by default will adapt a replacement frame that remains ten bits in length and will resemble the most common frame format.
Activating ModBus Communication - Put the SEC3120 Unit Online or Offline
Scroll down to MAIN MENU and select ENTER.
Move the cursor down to the NETWORK menu and select ENTER.
Select ENTER on MODBUS SETTINGS to bring up the Modbus Settings Menu.
The operator can place the unit actively on RS485 bus, or take it off by moving the cursor to ONLINE, selecting ENTER and using the UP/DN arrows to change the value between YES and NO.
Scroll down to the Modbus Settings Menu Page 2.
Select ENTER on PREVIOUS MENU to exit the Modbus Settings Menu and return to the Network Settings Menu Screen.
Scroll down to and select ENTER on PREVIOUS MENU to return to the Main Menu Screen.
Select ENTER on SAVE CHANGES. The screen will return to the Main Menu.
Scroll down to Main Menu Page 2.
Scroll down to and select ENTER on PREVIOUS MENU to return to the Initial/Top Menu Screen.
Set RS485 ModBus Line Settings (Data Bits, Stop bits, Parity and BAUD)
Scroll down to MAIN MENU and select ENTER.
Operator Manual Page 24 of 40 P/N 1580281 SEC3120 Digital Transmitter Sensor Electronics Corporation Rev 10, 20150707
EJECT MEMORY CARD ABORT WARMUP
INFO
* MAIN MENU
CALIBRATION ALARM RELAY
* NETWORK
NETWORK ID MENU * MODBUS SETTINGS
PREVIOUS MENU
* ONLINE SENSORS
NET ID
485 BUS MENU
YES / NO * UNIQUE UNIQUE
* ONLINE SENSORS
NET ID
485 BUS MENU
YES IDENT SINGLE
* PREVIOUS MENU
NETWORK ID MENU
MODBUS SETTINGS * PREVIOUS MENU
* SAVE CHANGES ABORT CHANGES
CALIBRATION ALARM RELAY
* NETWORK
HIDE LOW GAS SELF TEST SET DATE TIME
* PREVIOUS MENU
EJECT MEMORY CARD ABORT WARMUP
INFO
* MAIN MENU