Technical data

Chapter 3 Digital input modules Manual VIPA System 200V
3-32 HB97E - SM - Rev. 09/19
221-1BH20 - DI 16xDC24V/1C
DI 16xDC24V/1C VIPA 221-1BH20
The digital input module accepts binary control signals from the process
and provides an electrically isolated interface to the central bus system. It
has 16 channels that indicate the respective status by means of LEDs.
Additionally, the first two channels may head for counters.
• 16 inputs, isolated from the backplane bus
• 2 inputs (I+0.0 and I+0.01) are configurable as one counter, frequency
or period measurement
• Pull up abbr. pull down resistors are inside, so sensors with positive and
negative logic can be connected
• Suitable for standard switches and proximity switches
• Status indicator for each channel by means of an LED
1
2
3
[1]
[2]
[3]
Label for module name
LED status indicator
Edge connector
LED
.0 ... .7
Description
LEDs (green)
I+0.0 to I+1.7
A "1" signal level is
recognized as of app. 15V
and the respective LED is
turned on
.0
.1
.2
.3
.4
.5
.6
.7
.0
.1
.2
.3
.4
.5
.6
.7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
VIPA 221-1BH20
X
2
34
+1
+0
DI 16xDC24V/1C
Pin
1
2
3
4
.
.
.
9
10
.
.
.
17
18
Assignment
L+ DC 24V or Ground
*)
Input I+0.0 / Counter (A)
Input I+0.1 / Counter (B)
Input I+0.2
.
.
.
Input I+0.7
Input I+1.0
.
.
.
Input I+1.7
Ground
*) DC 24V or Ground to connect sensors with positive or negative logic at I+0.0 or I+0.1
Order data
Description
Properties
Construction
Status indicator
connector
assignment