Siemens 505-2557 用户手册
Advanced Function Programming
3-13
SIMATIC 505–2557 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).
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
B Y17
N=3
B Y17
N=3
C2
16
15
Specified word
LSB
14
17
19
18
C1
V300=2
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).
(see Figure 3-10).
Y32
Data_Ready
C2
Figure 3-10
The Data_Ready Bit