HIMA HIMatrix F3 AIO 8/4 01, Manual

Page: 12 / 56

3 Product Description F3 AIO 8/4 01
Page 12 of 56 HI 800 161 E Rev. 2.00
If an open-circuit occurs during voltage measurement (the line is not monitored), any input
signals are processed on the high-resistance inputs. The value resulting from this fluctuating
input voltage is not reliable; with voltage inputs, the channels must be terminated with a 10 k

resistor. The internal resistance of the source must be taken into account.
For a current measurement with the shunt connected in parallel, the 10 k

resistor is not
required.
The analog inputs are designed to retain the metrological accuracy for 10 years. A proof test
must be performed every 10 years.
3.1.1.1 Reaction in the Event of a Fault
If the device detects a fault on an analog input, the
AI.Error Code
parameter is set to a value
greater than 0. If a device fault occurred, the SILworX system parameter
Module Error Code
is
set to a value greater than 0, or if ELOP II Factory is used, the
Module.Error Code
signal is set
to a value greater than 0.
In both cases, the device activates the
FAULT
LED.
In addition to the analog value the the error code must be evaluated. The analog value must be
configured to ensure a safety-related reaction.
The error code allows the user to configure additional fault reactions in the user program.
3.1.2 Line Monitoring for Digital Outputs
The analog inputs (AI) of the F3 AIO 8/4 01 can also be used to monitor the line for open-
circuits and short-circuits of digital outputs of other HIMatrix controllers (line monitoring). To this
end, the transmitter supply must be set to 26 V. To do so, set the
Transmitter Voltage[01]
parameter in SILworX and ELOP II Factory to 2, see Table 29 and Table 33.
3.1.2.1 Requirements
Using HIMatrix devices with analog inputs, the digital outputs of any HIMatrix controller can be
monitored under the following conditions:
 The transmitter supply of analog inputs exists,
 An external shunt can be connected to the analog inputs.
These conditions apply for all systems within the HIMatrix family, from compact to modular
systems.
3.1.2.2 Examples
The digital outputs of the F2 DO 16 01 or F20 can be monitored with the analog inputs of the
F3 AIO 8/4 01.
The analog inputs of the F3 AIO 8/4 01 can monitor the digital outputs of the DIO 24/16 01
(modular system).
Figure 1 shows how the lines connecting a digital output (DO) to an actuator (e.g., solenoid
valve) can be monitored for open-circuits and short-circuits.
i
The connection must be adapted to the field devices used and the functionality checked
accordingly!