LumaSense Technologies M335 - Manual (Page 14)

M335 Manual Operation 14
3.5.1 RS485 Option
RS485 two wire is available as an option. The connection scheme is shown below:
Each M335 address must be set to a different value.
To change the address of an M335:
1. Press and hold the PAGE button. The word ACCESS will appear in the lower display.
2. Press the SCROLL button. LEVEL 1 will appear.
3. Press the UP button until LEVEL 3 appears.
4. Enter PASSCODE py pressing the UP button until 3 appears and wait until PASS
appears.
5. Press the PAGE button repeatedly until COMMS H MODULE appears.
6. Press the UP button until J COMMS appears.
7. Press the SCROLL button twice until ADDRESS appears.
8. Press the UP or DOWN buttons to change the address.
9. Press the PAGE button until ACCESS appears.
10. Press the SCROLL button. The display will show LEVEL 3.
11. Press the DOWN button until LEVEL 1 appears and wait.
12. Press the center, round button on the top row to go back to the normal display mode.
Note: A CD containing a sample program is included with your order. For more details
on communications, refer to the electronic communication manual also found on the
CD provided.
M335 Unit 1
(Address 1)
M335 Unit 2
(Address 2)