3.The data identification outputs Y19 ± Y17 are set according to the data being transferred. These are decoded by the module in order to distinguish the type of data being loaded (see Figure 3-9).

 

MWIR

 

 

 

 

A V300

 

 

 

C1

B Y17

V300=2

C2

N=3

 

Specified word

 

 

LSB

 

 

14

15

16

 

 

 

 

17

 

 

 

 

18

 

 

 

 

19

Figure 3-9 Identifying the Data Being Transferred

4.Y32 Data_Ready is energized to transfer the word data into the module (see Figure 3-10).

C2Y32

Data_Ready

Figure 3-10 The Data_Ready Bit

SIMATIC 505±2557 Installation and Operation Guide

Advanced Function Programming 3-13

Page 43
Image 43
Siemens 505-2557 installation and operation guide Identifying the Data Being Transferred