Delta Tau GEO BRICK LV User Manual
Geo Brick LV User Manual
MACRO Connectivity
248
MACRO Configuration Power-Up Sequence
Typically, in a MACRO master-slave configuration, it is desirable to power up the slave first and then the
master. This ensures proper establishment of MACRO communication. If this is not desirable or possible,
the following procedure should ensure that MACRO communication is properly initiated. But either way,
clearing MACRO ring faults is always recommended on power up in the following order:
master. This ensures proper establishment of MACRO communication. If this is not desirable or possible,
the following procedure should ensure that MACRO communication is properly initiated. But either way,
clearing MACRO ring faults is always recommended on power up in the following order:
1. Power up slave (logic power).
2. Issue a local clear fault command – in an initialization PLC.
2. Issue a local clear fault command – in an initialization PLC.
CMD
"CLRF"
3. Power-up master (logic power).
4. Insert a 1 second delay in an initialization PLC
4. Insert a 1 second delay in an initialization PLC
This allows the slave to clear its own fault locally first.
5. Issue a local clear fault command – in the initialization PLC.
CMD
"CLRF"
6. Insert a 250 millisecond delay
7. Broadcast a MACRO clear fault command – in the same PLC
7. Broadcast a MACRO clear fault command – in the same PLC
CMD
"MSCLRF15"
8. Insert a 250 millisecond delay
!
Caution
Make sure that the PLC logic is latched properly (scan initialization
PLCs once), sending CLRF and MSCLRF commands repeatedly locks
up MACRO communication.
PLCs once), sending CLRF and MSCLRF commands repeatedly locks
up MACRO communication.