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MULTIPLE TTDM-128 WITH NETWORK SYSTEM
One of the TTDM’s must be selected as the
master TTDM; all remaining TTDM’s in the
network will operate in “slave” mode.
At each slave TTDM:
► Perform Basic TTDM-128 Setup (page 7)
► Assign the leak detection channel tag if
required (page 7)
► Make sure that the Host Port Mode Selector
Switch on the User Interface
board is set to
RS485
► Set the host port parameters as follows (page
8):
▪ Set baud rate to 9600
▪ Set TTDM mode to Slave
At the master TTDM:
► Perform Basic TTDM-128 Setup (page 7). Be sure the settings match those of the Primary
TTDM
► Perform the Host Port Setup as required (page 8). Check that the TTDM mode is set to
Master.
► Change the Communication Timeout parameter:
▪ With the TTDM in the Current Event/Status display, press MENU
▪ Use the DOWN arrow key to select General Setup, then press ENTER
▪ Use the DOWN arrow key to select Password, then press ENTER
▪ Input the value 04000, then press ENTER followed by ESC
▪ Use the DOWN arrow key to select Special, then press ENTER
▪ Use the DOWN arrow key to select Comm Timeout, then press ENTER
▪ Use the arrow keys to input the value 660 ms, then press ENTER
▪ Press MENU to return to the Current Event/Status display
► Initialize the SIM network:
▪ With the TTDM in the Current Event/Status display, press MENU
▪ Use the DOWN arrow key to select SIM Network, then press ENTER
▪ Use the DOWN arrow key to select Init Network, then press ENTER
► Change the leak detection channel ID tags (page 7) to match what was set at the Primary
TTDM
Add TTDMs into the SIM network
where it makes sense to have a local
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