Identifying The Data Being Transferred - Siemens SIMATIC 505 Installation And Operation Manual
505-2556 sixteen channel isolated thermocouple input module
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SIMATIC 505–2556 Installation and Operation Guide
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).
C1
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).
C2
MWIR
A V300
B Y17
N=3
Specified word
Figure 3-10 The Data_Ready Bit
Advanced Function Programming
V300=2
C2
LSB
14
15
16
17
18
19
Y32
Data_Ready
3-13
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