ProSoft Technology MVI56-101S User Manual
Page 129

MVI56-101S ♦ ControlLogix Platform
Reference
IEC 60870-5-101 Slave Communication Module
User Manual
ProSoft Technology, Inc.
Page 129 of 193
August 2, 2011
Examples:
A value of 4000hex (only Bit 14 set, all others clear) is interpreted as 0.5 decimal
A value of 2000hex (only Bit 13 set, all others clear) is interpreted as 0.25
decimal
A value of 1000hex (only Bit 12 set, all others clear) is interpreted as 0.125
decimal
... and so on until...
A value of 0001hex (Only Bit 0 set, all others clear) is interpreted as
0.000030517578125
Therefore, the actual data values transmitted may be any combination of the
decimal values for any given bit pattern.
M_ME_NC and M_IT_NA
The Monitor Short Floating-Point Measured Value and Monitor Integrated Totals
information objects occupy two words with double-word addressing.
For example, if you configured the following information objects:
The following table describes how these information objects would be stored in
the module.
Inf. Object Address
Module Database Address
500
Words 40 and 41 (Double-word address 20)
501
Words 64 and 65 (Double-word address 32)
502
Word 104 and 105 (Double-word address 52)