Manual – IPOSplus®
293
22
Binary inputs/outputs
Assembler – Programming
22.2.2 Binary outputs
Reading binary
outputs
The terminal level of the binary inputs in the basic unit and any installed option are rep-
resented cyclically in the system variables H482 OUTPUT LVL (MOVIDRIVE
®
A) / H521
OUTPUT LVL B (MOVIDRIVE
®
B). In the process, the bits of the H482 system variable
are each assigned to one hardware output.
The individual terminal levels of binary outputs can be evaluated with the BMOV com-
mand in the IPOS
plus®
program. The BMOV command copies a bit from system variable
H482 (OUTPUT LVL) / H521 (OUTPUT LVL B) to any bit position (significance) of an-
other variable. The terminal level of output DO02 is queried using the following sample
program. To do this, bit 1 of system variable H482 is copied to bit 0 (significance 2
0
) of
H200. This makes it easy to query (0 or 1) the terminal level with a JMP command.
Alternatively, one or more terminal levels of the binary outputs can be filtered using a
logical operation with the system variables H 482 (OUTPUT LVL) / H521 (OUTPUT LVL
B). The terminal level of output DO02 is queried using the following sample program:
The result of the AND operation is written to the first variable, that is H200. Therefore,
the first argument must be a variable.
Setting the binary
outputs
To set the outputs, the binary outputs (parameters 620/621 (MOVIDRIVE
®
A), 620
... 626 (MOVIDRIVE
®
B), 630 ... 637) must be set to "IPOS OUTPUT".
Digital outputs are set using the system variables:
• H 480 (OPT. OUT IP) for option DIO11 / DIP11 (DO10 ... DO17)
• H 481 (STD. OUT IP) for the basic unit (DO01 / DO02 (MOVIDRIVE
®
A) DO01 ...
DO05 (MOVIDRIVE
®
B); DB00 is set to "/Brake". The brake is controlled directly by
the firmware. As a result, the output cannot be written.)
SET H200 = 0
BMOV H200.0 = H482.1
JMP H200 == 1 ,Mxx
M1 : SET H200 = 2
AND H200 & H482
JMP H200 == 2 ,M1
AND operation of H200 and H482
H200 = 2 00000000010 (= DO01)
H482 = 11011100110 (= current status of the binary outputs)
Result 00000000010 (= the jump is performed, as H200 = 2)
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