Digital I/O - Emerson MCi210 User Manual

7

Digital I/O

The MCi210 is equipped with three dedicated digital input terminals, one configurable digital input/
output terminal and one dedicated digital output terminal.
The digital outputs are positive logic such that they are at 24 V when active and will supply up to 20
mA of current. The digital outputs are protected against short-circuit and overload. The trip
threshold is 20 mA and if one trips both outputs will be deactivated.
The state of the inputs can be read using parameters S.04.001, S.04.002 and S.04.003 for the
digital input 1, digital input 2 and digital input 3 terminals respectively.
Parameter S.004.004 will indicate the state of the digital I/O 4 terminal, regardless of whether it is
configured as an input or output. It cannot be used to set the output. To set the digital I/O 4 terminal,
when configured as an output, parameter S.04.011 should be used.
Parameter S.04.010 is used to set the state of the digital output 5 (dedicated output) terminal.
Parameter S.04.020 can also be used to set the state of the digital I/O 4 (bit 1) and digital output 5
(bit 0) terminals.
Event tasks can be configured to be run upon a digital input becoming active. This is configurable
using parameter S.04.022.
See section 5.9 Menu 4 - Digital I/O on page 35 for further information.
Figure 7-1 Digital I/O Connections
1 2
4 5
Table 7-1 6-way digital I/O pluggable connector pin out
Terminal
1
2
3
4
5
6
MCi210 User Guide
Issue Number: 2
3
6
Description
Digital input 1
Digital input 2
Digital input 3
Digital I/O 4
Digital Output 5
0 V common
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