GE 90-30 PLC Series Installation And Hardware Manual page 187

Datagrams
The Series 90-30 GBC supports all Genius datagrams. Refer to chapter 3 of the Genius I/O System
and Communications User's Manual, GEK-90486-1, for details on using datagrams.
Global Data
Global Data is data that is automatically and repeatedly broadcast by a GBC. The Series 90-30
GBC can send up to 128 bytes of Global Data each bus scan. It can receive up to 128 bytes of
Global Data each bus scan from each GBC on its bus.
Sending Global Data
Once set up by configuration, Global Data is broadcast automatically. Other devices that receive
the Global Data sent by a Series 90-30 PLC place it in these memory locations:
Series 90-30 PLC Sends
Series 90-30 PLC
Series 90-30 GCM+
Series 90-30 PLC/GCM
Series Six PLC
Series Five PLC
Computer
Receiving Global Data
The GBC can be configured to receive or ignore Global Data from any other GBC. The memory
type and length for incoming Global Data are also selected during configuration. The Series 90-30
CPU can place incoming Global Data in %I, %Q, %G, %R, %AI, or %AQ memory.
Genius Bus Controller Documentation
See the following manuals for detailed information on the Series 90-30 Genius Bus Controller and
the Genius I/O system:
GFK-0356Q Chapter 8 Option Modules
Global Data To: Other CPU Places Global Data in these Memory Location:
%I, %Q, %G, %R, %AI, %AQ. Memory type and beginning
address are chosen during configuration of the receiving GBC.
%I, %Q, %G, %R, %AI, %AQ
%G memory location corresponding to Device Number (16-23)
of the Series 90-30 GBC that sent the data.
Register memory. Beginning Series Six address selected during
configuration of the Series 90-30 GBC that sent the data.
Register memory. Beginning Series Five address selected during
configuration of the Series 90-30 GBC that sent the data.
PCIM or QBIM Input Table Segment corresponding to Device
Number of the Series 90-30 GBC that sent the data.
GFK-1034, Series 90-30 Genius Bus Controller User's Manual
GEK-90486-1, Genius I/O System and Communications User's Manual
GEK-90486-2, Genius I/O Discrete and Analog Blocks User's Manual
GFK-0825, Field Control Distributed I/O and Control System - Genius Bus Interface Unit
User's Manual
GFK-0826, Field Control Distributed I/O and Control System - I/O Modules User's Manual
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