GE GFK-0787B Noise Reduction Machine User Manual


 
6
6-45GFK-0787B Chapter 6 Configuration
Completing the Logicmaster 90 Configuration
Logicmaster 90 configuration steps for a PLC In a GMR system are the same as for a
non-GMR system. A typical configuration is summarized on the following pages. You
should refer to the Logicmaster 90 Software User’s Manual for detailed configuration
instructions.
Since the configuration and program for the redundant PLCs in a GMR system are
nearly identical, it is easiest to complete the configuration (and program) for one PLC,
then copy and edit them for the other PLCs.
One necessary change in the configuration is to edit the serial bus addresses (also
referred to in other Genius documentation as “device numbers” of the Bus
Controllers). See below.
Genius I/O blocks use the same reference addresses in each of the redundant PLCs,
so reference addresses are not changed from PLC to PLC.
It is very important to be sure that entries made during Logicmaster configuration match
similar entries made during GMR configuration. Complete the GMR configuration first,
print it out, and use the printout for reference during the Logicmaster configuration.
Configuring Bus Controllers
A Series 90-70 PLC can have up to 31 Genius bus controllers. In a GMR system, bus
controllers perform the dual function of supporting Genius I/O and providing inter-PLC
communications. The number of bus controllers supporting GMR functions in a GMR
system must be the same in each PLC. Other, non-GMR, bus controllers can be added to
an individual PLC configuration.
All Genius bus controllers that are included in the GMR system must be assigned serial bus
addresses (device numbers) as follows:
PLC A bus address 31
PLC B bus address 30
PLC C bus address 29
For example, if the system consists of three PLCs with two triple-bus GMR I/O
subsystems, each PLC would require six bus controllers. All six in PLC A would have to
be configured at bus address 31, all six in PLC B at bus address 30, and all six in PLC C at
bus address 29.
29
29
29
29
29
29
30
30
30
30
30
30
31
31
31
31
31
31
PLC A
PLC B PLC C