Internal Register Structures; Description Of The I/O Registers; Input Registers; Input And Output Register Offsets - Siemens SIMATIC 505 Installation And Operation Manual

3.2

Internal Register Structures

Description of the
I/O Registers

Input Registers

SIMATIC 505–2556 Installation and Operation Guide
The SIMATIC 505–2556 module in the high-density mode logs in to the
controller as 32 WX input registers, 32 WY output registers and 16 X and
16 Y discrete inputs and outputs. This high-density configuration provides
support for reading the raw data and the processed data, and for writing the
configuration data to the module. Refer to section 3.7 for a one-page
summary of I/O assignments.
Starting login addresses and the locations of their corresponding registers
are shown in Table 3-1.
Table 3-1 Input and Output Register Offsets
Starting Controller Address
X registers begin
Y registers offset 16
WX registers offset 32
WY registers offset 64
The word input content of the module consists of 32 WX input registers.
These registers present the raw measured data and the processed data to
the controller.
WX33 – WX48 contain the converted data in engineering units for the
sixteen input channels, as shown in Table 3-2.
WX33
.
.
WX48
1
1
17
33
65
Table 3-2 Input Channel Data
Channel 1
.
.
Channel 16
Advanced Function Programming
105
105
121
137
169
Conversion data
.
.
Conversion data
3-5