Siemens TIM 1531 IRC, Руководство по эксплуатации

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Block library TeleControl ST7
5.7 Master copies
TIM 1531 IRC
Operating Instructions, 02/2018, C79000-G8976-C468-02
173
Default: 0 (B#16#0)
Address
range:
Memory bytes MB0 ... MBn
Data bytes DBm.DBB0 ... n
This is an in/out parameter (declaration IN_OUT). It is difficult to specify local
bit memory with this parameter type and this should not be used.
Explanation
Command input byte for software input
This command input byte is specially designed for entering commands using
software, i.e. by the user program or an operator panel (OP). When an input is
detected and if no error is detected during the 1-out-of-8 and 1-out-of-n check,
the command id reset at the input byte and transferred. The central enable
memory bit is ignored here because it is only intended for command input over
hardware (see "CommandInputByte_HW").
If a 1-out-of-8 or 1-out-of-n error is detected, the entered command is no
longer processed. A new command is only read in again if previously for the
time of one OB1 cycle no software command was detected in the CPU at this
or another command input block with a software input.
The FB enters a detected 1- out-of-8- or 1-out-of-n error in the diagnostic buff-
er (event ID B171 or B172). Appropriate error bits are also set in the central
data block BasicData where they can be queried by the software. For further
details, refer to the description of FC Safe.
In principle it is possible to create a new command at "CommandIn-
putByte_SW" in every OB1 cycle. However, only one command per OB1 cycle
is allowed and this applies to all command input blocks with software input (1-
out-of-n check). An ’empty cycle’ between two consecutive software com-
mands is therefore not necessary.
Note
CommandInputByte_HW / CommandInputByte_SW
If the same commands need to be entered over the hardware and software, the two
command inputs "CommandInputByte_HW" and "CommandInputByte_SW" can also be used
at the same time.
If a command is entered at the same time over both input bytes, this is only accepted when
exactly the same command is entered over the hardware as well as the software input. The
hardware input is then processed further.
In all other cases the input is rejected and an error message is entered in the diagnostic
buffer (Event ID B170). The error status is also indicated via the InputError output of FC
Safe. Appropriate error bits are set in the central data block BasicData where they can be
queried by the software (see FC Safe).
5.7.1.11 Command typical Cmd01B_R
Function
Receive 1 byte commands (1-out-of-8 format)