DIO 24/16 01
4 Start-Up
HI 800 205 E Rev. 1.01
Page 19 of 40
4.1.2.1 Surges
on
Digital Inputs
Due to the short cycle time of the HIMatrix systems, a surge pulse as described in
EN 61000-4-5 can be read in to the digital inputs as a short-term high level.
The following measures ensure proper operation in environments where surges may occur:
1. Install shielded input wires
2. Activate noise blanking: a signal must be present for at least two cycles before it is
evaluated.
i
Activating noise blanking increases the response time of the HIMatrix system!
i
The measures specified above are not necessary if the plant design precludes surges from
occurring within the system.
In particular, the design must include protective measures with respect to overvoltage,
lightning, earth grounding and plant wiring in accordance with the relevant standards and
the instructions specified in the System Manual (HI 800 141 or HI 800 191).
4.1.3 Connecting
the Digital Outputs
Use the following terminals to connect the digital outputs:
Terminal
Designation
Function
28
L-
Supply of outputs 1...8
29
O1
Digital output 1
30
O2
Digital output 2
31
O3
Digital output 3
32
O4
Digital output 4
33
O5
Digital output 5
34
O6
Digital output 6
35
O7
Digital output 7
36
O8
Digital output 8
Terminal
Designation
Function
37
L-
Supply of outputs 9...16
38
O9
Digital output 9
39
O10
Digital output 10
40
O11
Digital output 11
41
O12
Digital output 12
42
O13
Digital output 13
43
O14
Digital output 14
44
O15
Digital output 15
45
O16
Digital output 16
Table 11: Terminal Assignment for the Digital Outputs
