Siemens SIMATIC S7-300 Series Reference Manual page 47

Technical Specifications of the Special Inputs of the CPU 312IFM
Module-Specific Data
Number of inputs
Cable length
S
Shielded
Voltages, Currents, Potentials
Number of inputs that can
be triggered simultaneously
S
(horizontal
configuration)
up to 60°C
S
(vertical configuration)
up to 40°C
Status, Interrupts; Diagnostics
Status display
Interrupts
S
Process interrupt
Diagnostic functions
PLC S7-300, CPU Specifications CPU 312 IFM to CPU 318-2 DP
A5E00111190-01
Sensor Selection Data
4 Input voltage
S
I 124.6 to 125.1
Rated value
S
For "1" signal
I 125.0 and I 125.1
max. 100 m (109yd.)
I 124.6 and I 124.7
S
For "0" signal
4
Input current
S
For "1" signal
I 125.0 and I 125.1
4
I 124.6 and I 124.7
Input delay time
4
S
For "0" to "1"
S
For "1" to "0"
Input characteristic
1 green LED per
E 125.0 and E 125.1
channel
E 124.6 and 124.7
Configurable
Connection of 2-wire
BEROs
None
S
Permissible idle current
I 125.0 and I 125.1
I 124.6 and I 124.7
Time, Frequency
Internal conditioning time
for
S
Interrupt processing
Input frequency
CPUs
24V DC
15 to 30 V
15 to 30 V
-3 to 5 V
min. 2 mA
min. 6.5 mA
max. 50 ms
max. 50 ms
to IEC 1131, Type 1
to IEC 1131, Type 1
no
max. 0.5 mA
max. 2 mA
max. 1.5 ms
v 10 kHz
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