Interfaces
3.4 Digital inputs/digital outputs
D4x5
Manual, 03/2007 Edition
41
3.4.2 Technical data for X122 and X132
Digital inputs on X122/X132
Table 3-10 Technical data for digital inputs X122/X132
Parameters Values
Voltage -3 V to 30 V
Typical power consumption 10 mA at 24 VDC
Galvanic isolation Reference potential is terminal M1 or M2
Signal level (including ripple factor)
• 0 signal: -3 V to 5 V
• 1 signal: 15 V to 30 V
Input delay
• 0 → 1: 50 μs
• 1 → 0: 100 μs
Digital inputs/digital outputs on X122/X132
Table 3-11 Technical data of digital inputs/digital outputs X122/X132
Parameters Values
As an input
Voltage -3 V to 30 V
Typical power consumption 10 mA at 24 VDC
Switching frequencies
• Ohmic load: min. 0.1 kHz
• Inductive load: min. 0.002 kHz
• Lamp load: min. 0.011 kHz
Signal level (including ripple factor)
• 0 signal: -3 V to 5 V
• 1 signal: 15 V to 30 V
Input delay
• 0 → 1: 50 μs
• 1 → 0: 100 μs
Pins 8, 10 and 11 of X122 and X132 are "rapid inputs" with the following properties:
"Rapid" input delay
• 0 → 1: 5 μs
• 1 → 0: 50 μs
Galvanic isolation Yes
One-time measurement Yes
Cyclic measurement Yes (only in combination with Measuring Input TO)
Resolution 0.25 μs (hardware support)
As an output
Voltage 24 VDC
Maximum load current per output 500 mA
Output delay
• 0 → 1: < 400 μs
• 1 → 0: < 100 μs
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