
A
GFK-2731
Chapter A
A-17
A 5.2
Description of the registers
Data-x
(safe data of satellite x)
The register contains the safe data of the specified satellite. The structure and function of
the register are as follows:
Prot-x
Protocol data; the user cannot access this register.
Dev-Diag-x
(PSDI, PSDO diagnostics)
The diagnostic register of the specified (x) IC220SDL543 or IC220SDL... has the following
structure and function:
Dev-Ack-x
(device acknowledgment)
This register is used to acknowledge device errors internally. The user cannot access this
register.
The register assignment for the IC220SDL953, IC220SDL543, and IC220SDL753 is
illustrated below.
As the registers are device-specific, the assignment for other modules may differ from
the description. Check the register assignment against the device-specific
documentation.
The actual assignment of the data registers (Data..., Feedback-Data...) is determined by
the parameterization (single-channel, two-channel). The register description below
describes all bits. Please refer to the description of the process data words in the
documentation for the modules for information about which bits are actually assigned.
Table A-12
Data-x register
7
6
5
4
3
2
1
0
IC220SDL543
IN3
_Ch2
IN3
_Ch1
IN2
_Ch2
IN2
_Ch1
IN1
_Ch2
IN1
_Ch1
IN0
_Ch2
IN0
_Ch1
IC220SDL...
OUT3
_Ch2
OUT3
_Ch1
OUT2
_Ch2
OUT2
_Ch1
OUT1
_Ch2
OUT1
_Ch1
OUT0
_Ch2
OUT0
_Ch1
The data is only valid as long as the connection is active.
Table A-13
Dev-Diag register of the IC220SDL543 or IC220SDL...
15
14
13
12
11
10
...
0
Diag-Sel
Diagnostic code/address
Bit
Meaning
Function
15 ...
13
Diag-
Sel
Diagnostic
selector
111
bin
:
Bit 12 has no function.
Bits 11 ... 0 contain the diagnostic code of the
module.
Please refer to the user manual for the
satellites you are using for information about
the function of the diagnostic codes.
100
bin
:
No errors (8000
hex
)
010
bin
:
Bits 12 ... 0 contain the address of the module.
Others:
Reserved