Siemens 505-2557 User Manual
Advanced Function Programming
3-5
SIMATIC 505–2557 Installation and Operation Guide
3.2
Internal Register Structures
The SIMATIC 505–2557 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.
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.
are shown in Table 3-1.
Table 3-1
Input and Output Register Offsets
Starting Controller Address
1
105
X registers begin
1
105
Y registers offset 16
17
121
WX registers offset 32
33
137
WY registers offset 64
65
169
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.
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.
sixteen input channels, as shown in Table 3-2.
Table 3-2
Input Channel Data
WX33
Channel 1
Conversion data
.
.
.
.
.
.
WX48
Channel 16
Conversion data
Description of the
I/O Registers
I/O Registers
Input Registers