| # | NAME: | TYPE: | MEANING:
|
| C | Comrc | class | Standard commercial Msg.
|
| I | Urgnt | class | Priority Msg.
|
| P | PrmOH | class | Primary Overhead Msg. Flow codes will switch.
|
| G | AuxOH | class | Overhead. Manual Flow control.
|
| D | Debug | class | Diagnostic Overhead. Used for automated tower / terminus returns.
|
| S | Safe | mod | Msg will not be evaled for Tower commands.
|
| Q | Chain | mod | Tower commands will be executed even if this is not the recieving tower.
|
| N | NoLog | mod | Msg will not be logged on Tower's Drum.
|
| O | OrLog | mod | Msg will only be logged on Originator and Reciever tower Drums.
|
| U | UTurn | flow | Msg is to be sent back the way it came when it reaches a terminus.
|
| E | Echo | flow | Msg is to be sent back once it reaches the recieving tower. This will change to S once it does so.
|
| M | March | flow | Msg is to be sent to the nearest terminus even after it reaches the recieving tower.
|
| B | Brnch | flow | Msg is to be sent all possible directions except originator direction if this tower is a junction.
|
