GE RX3i - Page 121

Chapter 6. Programming EGD Commands
108 PACSystems* RX7i & RX3i TCP/IP Ethernet Communications User Manual GFK-2224Q
Masked Write to EGD Exchange Bit Mask and Data Bits
Word 9 of the Masked Write command contains the bit mask. The most significant byte of Word 9 is ignored. In
the least significant byte, any bits set to 1 will be written to the remote producer.
The equivalent bit of Word 10 of the Masked Write command contains the bit state to be written, 1 or 0. The
most significant byte of Word 10 is also ignored.
For example:
Most Significant Byte
0
0
1
0
0
0
0
0
Word 9
(mask)
Most Significant Byte
0
0
0
0
0
0
0
0
Word 10
(data)
Bit to be written at the selected
Remote Exchange Offset
State to set the masked bit
Figure 47: Example: Masked Write to EGD Exchange Bit Mask and Data Bits