Product basic information

Product model: 6ES7350-2AH01-0AE0

Belonging to the Siemens SIMATIC S7-300 series, specifically the counter module (FM 350-2)

Core positioning: 8-channel counter module, supporting 24V encoder, capable of counting, frequency measurement, speed measurement, cycle duration measurement, and proportional allocation functions. Comes with configuration package and electronic document (CD format), document date is April 16, 2012, content may be subject to further modification.

Core electrical specifications

（1） Power supply and power consumption

Parameter category details

Supply voltage – auxiliary voltage 1L+, load voltage 2L+: direct current (DC) 24V, allowable range 20.4V-28.8V

-Encoder power supply: NAMUR encoder output voltage 8.2V ± 2%, rated output current 200mA, with short-circuit protection

Input current load voltage L+(no load): maximum 150mA

-Backplane bus 5V DC: maximum 100mA

Typical power loss value 10W

（2） Digital input characteristics

Specific specifications of input parameters

Number of channels: 8 binary input channels, each corresponding to 1 door start/stop function

Signal Level – Signal “0”: -3 to+5V

-Signal “1”: 11 to 30.2V

Input current – signal “0”: maximum 2mA (static current allowed)

-Signal “1”: Typical value 9mA

When switching from input delay standard “0” to “1”, the maximum delay is 50 μ s

Cable length: Shielded cable, maximum 100m

（3） Digital output characteristics

Specific specifications of output parameters

Number of channels: 8 binary output channels with short-circuit protection capability

Inductive turn off voltage limit up to L+(-40V)

Minimum L+(-0.8V) when outputting voltage signal “1”

Output current – signal “1” rated value: 0.5A

-Residual current of signal ‘0’: maximum 0.5mA

Output delay: Under resistive load, the maximum switching delay from “0” to “switching” is 300 μ s

Switching frequency – resistive load: maximum 500Hz

-Inductive load: maximum 0.5Hz

Output total current (per group) – Horizontal installation: maximum 4A below 40 ° C, maximum 2A below 60 ° C

-Other installation locations: maximum 2A below 40 ° C

Cable length – shielded cable: maximum 600m

-Unshielded cable: maximum 100m

Encoder and Counting Function Specifications

（1） Compatible with encoder types

Supports incremental encoders (asymmetric), 24V triggers, 24V directional components, NAMUR encoders, and 2-wire sensors.

（2） NAMUR encoder specific parameters

Parameter specifications

NAMUR input quantity 8

The input signal standard complies with DIN 19234

Input current – signal “0”: maximum 1.2mA

-Signal “1”: minimum 2.1mA

Maximum input delay of 50 μ s

Maximum input frequency 20kHz

Cable length: Shielded cable, maximum 100m

（3） Counter core parameters

Counting parameter specifications

8 counters, supporting 32-bit or ± 31 bit counting

Input voltage – signal “0”: -3 to+5V

-Signal “1”: 11 to 30.2V

Input current – signal “0”: maximum 2mA (static current allowed)

-Signal “1”: Typical value 9mA

Maximum input delay of 50 μ s

The maximum counting frequency is 20kHz (incremental encoder is 10kHz)

The maximum cable length is 100m

Mechanical and isolation specifications

（1） Size and weight

Dimensions: Width 80mm, Height 125mm, Depth 120mm

Weight: Approximately 460g

Connection method: 1 40 pin front connector is required

（2） Electrical isolation

Isolation status of isolated objects

Isolation between digital input channel and backplane bus (including shielding)

NAMUR input channel and backplane bus and shield: isolated

Isolation between digital output channel and backplane bus (including shielding):

Isolation between counter channel and backplane bus (including shielding):

Functional characteristics

（1） Interruption and Diagnosis

Functional Category Capability Details

Alarm function supports parameterized diagnostic alarms and parameterized hardware interrupts

The diagnostic function has diagnostic capabilities and can read diagnostic information

Status indicator red group error indicator light (SF): displays group error status