II - DCE FEL ČVUT v Praze

SIMATIC S7 HART Analog Modules
4.8.7 Output Area (Write)
Structure of the
user data
4-38
The following figure shows the structure of the user data area for the HART
analog output module. The data for the user data area can be read in the
desired format using “Write peripheral data” (for example, L PIW 256) and
evaluated in your user program.
Byte 0
Byte 1
Byte 2
Byte 3
Value in S7 format
Channel 0
Analog output value
(only with AO HART)
Channel 1
Analog output value
(only with AO HART)
Byte 4 0
0 reserved
.
.
.
Byte 15
Value in S7 format
.
.
.
0
Fig. 4-21 User data area of the HART analog output module
I/O Modules with Intrinsically-Safe Signals
C79000-G7076-C152-04