Sending A Role-Swap Command - Siemens SIMATIC TI505 User Manual

Sending a Role The user-commanded role swap feature of the Redundant I/O system allows
Swap Command an orderly transition of the active unit to a stand-by status. The original
stand-by unit then assumes the active role. This feature is accessed using a
task code formatted as follows:
TC = 43FE + LAR + 0310 + RCC + RBC
where LAR = two hex digits,
RCC = single hex digit corresponding to channel number (0 – 7)
RBC = single hex digit corresponding to base number (0 – F)
This task code is transmitted either directly to the Redundant I/O system as
formatted above, or as the body of a native primitive "01" to a TIWAY Host
Adapter.
For example, to command base 0 on channel 1 to do a role swap, send either:
43FEF0031010
0143FEF0031010
To command base 15 on channel 7 to conduct a role swap, send either:
43FEF603107F
0143FEF603107F
SIMATIC TI505 Redundant I/O System User Manual
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F1 for role swaps on bases on channels 0 and 1
F2 for role swaps on bases on channels 2 and 3
F4 for role swaps on bases on channels 4 and 5
F6 for role swaps on bases on channels 6 and 7
task code
or
TIWAY command
task code
or
TIWAY command
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