| SIMATIC S7-300, Counter module FM 350-2, 8 channels, 20 kHz, 24 V encoder for counting, frequency measurement, speed measurement, period duration measurement, dosing incl. configuration package and electronic documentation on CD-ROM |
Supply voltage |
Auxiliary voltage 1L+, load voltage 2L+ |
Rated value (DC) | 24 V |
permissible range, lower limit (DC) | 20.4 V |
permissible range, upper limit (DC) | 28.8 V |
Input current |
from load voltage L+ (without load), max. | 150 mA |
from backplane bus 5 V DC, max. | 100 mA |
Encoder supply |
Type of output voltage | NAMUR-encoder supply: 8.2 V ±2 % |
Short-circuit protection | Yes |
Output current |
Rated value | 200 mA |
Power loss |
Power loss, typ. | 10 W |
Digital inputs |
Number of digital inputs | 8 |
Number of NAMUR inputs | 8 |
Functions | 1 each for gate start/ gate stop |
Input voltage |
for signal "0" | -3 to +5V |
for signal "1" | 11 to 30.2 V |
Input current |
for signal "0", max. (permissible quiescent current) | 2 mA |
for signal "1", typ. | 9 mA |
Input delay (for rated value of input voltage) |
for standard inputs |
— at "0" to "1", max. | 50 µs |
Cable length |
shielded, max. | 100 m |
Digital outputs |
Number of digital outputs | 8 |
Short-circuit protection | Yes |
Limitation of inductive shutdown voltage to | L+ (-40 V) |
Output voltage |
for signal "1", min. | L+ (-0.8 V) |
Output current |
for signal "1" rated value | 0.5 A |
for signal "0" residual current, max. | 0.5 mA |
Output delay with resistive load |
"0" to "1", max. | 300 µs |
Switching frequency |
with resistive load, max. | 500 Hz |
with inductive load, max. | 0.5 Hz |
Total current of the outputs (per group) |
horizontal installation |
— up to 40 °C, max. | 4 A |
— up to 60 °C, max. | 2 A |
all other mounting positions |
— up to 40 °C, max. | 2 A |
Cable length |
shielded, max. | 600 m |
unshielded, max. | 100 m |
Encoder |
Connectable encoders |
Incremental encoder (asymmetrical) | Yes |
24 V initiator | Yes |
24 V directional element | Yes |
NAMUR encoder | Yes |
2-wire sensor | Yes |
NAMUR encoder |
Input signal | to DIN 19 234 |
Input current for signal "0", max. | 1.2 mA |
Input current for signal "1", min. | 2.1 mA |
Input delay, max. | 50 µs |
Input frequency, max. | 20 kHz |
Cable length, shielded, max. | 100 m |
Interrupts/diagnostics/status information |
Diagnostics function | Yes; Diagnostic information readable |
Alarms |
Diagnostic alarm | Yes; Parameterizable |
Hardware interrupt | Yes; Parameterizable |
Diagnostics indication LED |
Group error SF (red) | Yes |
Counter |
Counter input 24 V |
Number | 8; 32 bit or ±31 bit |
Input voltage for signal "0" | -3 to +5V |
Input voltage for signal "1" | 11 to 30.2 V |
Input current for signal "0", max. (permissible quiescent current) | 2 mA |
Input current for signal "1", typ. | 9 mA |
Input delay, max. | 50 µs |
Counting frequency, max. | 20 kHz; Incremental encoder: 10 kHz |
Cable length, max. | 100 m |
Potential separation |
Potential separation digital inputs |
between the channels and backplane bus | Yes; and shielding |
Potential separation digital outputs |
between the channels and backplane bus | Yes; and shielding |
Potential separation counter |
between the channels and backplane bus | Yes; and shielding |
Connection method |
required front connector | 1x 40-pin |
Dimensions |
Width | 80 mm |
Height | 125 mm |
Depth | 120 mm |
Weights |
Weight, approx. | 460 g |
last modified: | 03/29/2019 |