M_me_nc and m_it_na – ProSoft Technology PTQ-104S User Manual

Page 147

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48TPTQ-104S Rev 1 ♦ 47TQuantum Platform

Reference

46TIEC 60870-5-104 Server for Quantum

12TUser Manual

Bit

15

14

13

12

11

10

9

8

7 6 5 4 3 2 1 0

6000h

0.75

0

1

1

0

0

0

0

0

0 0 0 0 0 0 0 0

3210h

0.395751953125

0

0

1

1

0

0

1

0

0 0 0 1 0 0 0 0

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 monitored measured short floating point and monitored integrated total
points occupy two words with double-word addressing.

For example, if you configured the following points:

The following table describes how these points would be stored in the module:

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)

ProSoft Technology, Inc.

Page 147 of 201

March 4, 2013

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