7
Following is the procedure for connecting four weighers together for total operation:
1. Turn off the weighers to be interconnected.
2. Attach a communication cable from weigher #1 to weigher #2.
3. Attach a communication cable from the breakout receptacle of the first cable to the #3 weigher.
4. Attach a communication cable from the breakout receptacle of the second cable to the #4 weigher.
5. Turn the weighers on.
6. Press the LCL/TTL button on any weigher.
7. The display will show “WAITING FOR COMM” .
8. After communications with all weighers attached is achieved, the display will show “04 TOTAL #4”.
This means that all 4 weighers are in communication with each other.
9. The display will show “TOT XXXXX LB” on all scales interconnected.
10. Press the ZERO pushbutton on any weigher. If all weighers zero, they are ready for use.
If any connected weigher remains in local mode, communication with that unit is not established. Check the
cable for bad connections or broken pins. When communication is established, the weighers display the total
number of weighers communicating.
2.9
Weigher Bus Address
When operating in the TOTAL mode, each weigher must have its own bus address. If two or more weighers
have the same bus address, communication cannot be properly established. Referring to the example given in
Section 2.8, Local/Total Operation, the four weighers connected must have four different bus addresses.
These addresses can be any number from 1 to 30.
No two weighers can have the same number. To change the bus address, perform the following steps:
1. Turn the weigher off.
2. While holding the ZERO pushbutton down, turn the weigher on.
3. The display will read “RELEASE ZERO”. Release the ZERO pushbutton.
4. The display will read “NEW ADDRESS XX”, where XX is a number from 01 to 30. Press the
LCL/TTL pushbutton to increment the number.
5. After a new number has been selected, press the ZERO pushbutton. The weigher will operate as it
would under normal local operation.
