Motorola GT10 - Manual (Page 130)

GT10/GT30 6.2 Entering Configuration Settings with GTWIN
107
KEY POINTS
GT internal devices
Device type Address range Points
Data register GDT0000 to GDT2047 2048 words
Memory
Internal relay WGR0000 to WGR0255 256 words
Bits Internal relay GR0000 to GR255F 4096 points
* The WGR and GR are the same memory, but in the WGR, bits are handled in word units.