Technical data

Chapter 3 Digital input modules Manual VIPA System 200V
3-16 HB97E - SM - Rev. 09/19
221-1BF50 - DI 8xDC 24V NPN
DI 8xDC 24V NPN VIPA 221-1BF50
The digital input module accepts binary control signals from the process
and provides an electrically isolated interface to the central bus system.
The module has 8 channels, each one with a light emitting diode to indicate
the status of the channel. The input becomes active when it is connected to
ground.
• 8 floating inputs, isolated from the backplane bus
• Active low input (signal level "1" when input is at ground)
• DC 24V nominal input voltage
• Suitable for standard switches and proximity switches
• Status indicator for each channel by means of an LED
1
2
3
4
[1]
[2]
[3]
[4]
Label for module description
Label for the bit address with
description
LED status indicator
Edge connector
LED
.0... .7
Description
LEDs (green)
I+0.0 to I+0.7
when an input is at ground
a "1" is detected and the
respective LED is turned
on
DI 8xDC24V
SM 221
.0
.1
.2
.3
.4
.5
.6
.7
VIPA 221-1BF50
X2
34
1
2
3
4
5
6
7
8
9
I0
Pin
1
2
3
4
5
6
7
8
9
10
Assignment
+DC 24V
Input I+0.0
Input I+0.1
Input I+0.2
Input I+0.3
Input I+0.4
Input I+0.5
Input I+0.6
Input I+0.7 / Ground
reserved
Order data
Description
Properties
Construction
Status indicator
pin assignment