The IO interface has an inactivity monitor. For this purpose, special TMC
telegrams must be sent at regular intervals from the MultiFlow via the
CAN bus to the IO interface. If these telegrams are not sent, for instance
due to a break in the connection, the device automatically switches to
offline mode. The output statuses in this case assume the default
statuses.
Up to 8 solenoid valves can be controlled from the I/O interface. The I/O
interface is also equipped with two not-intrinsically safe inputs.
Output circuit U
max
≤ 24V, I
max
≤ 1A
Input circuit U
max
≤ 24V, I
max
≤ 1A
In the case of multiple measuring systems you need to ensure that the
active MultiFlows are not accessing the same IO interface.
9.14.1.1
Link
Each output of the external IO interface can be linked to any input or
output of the MultiFlow plus one of the two inputs of the IO module (IN1
and IN2). The corresponding output of the IO interface assumes the
status of the respectively allocated input or output.
It is also possible to specify a delay time. After recognizing a status
change of the reference-in/output the status of the linked external output
is adjusted after this delay time. The delay time can be set in 100 msec
increments from 0 to 10 sec.
Furthermore an inversion of the output status can be specified. In this
case the external output always assumes the inverted status of the input
or output with which it is linked.
9.14.1.2
Additional hose path
Alternatively to the in/output-link it is possible to use the external outputs
to control an additional hose path. The hose path name can be specified
by the user, bearing in mind that different entries cannot have the same
name. This name is displayed in addition to the existing hose paths in the
hose path choice displayed before each delivery. If the corresponding
hose path is selected here, the delivery is controlled not via the local
outputs but via the respective external output. The additional hose paths
cannot be selected if the IO expansion is incorrectly connected to the
MultiFlow or the connection is damaged.
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