Technical data
SIMATIC S7-300, Analog input SM 331, potential isolation, 8 analog input, aufl. 14Bit, 0.052ms/ channel current, voltage measuring instrument alarm, diagnosis, 1 20 pins, suitable for beat synchronous operation improved bus cycle time, for clock synchronous operation
Supply voltage
Load voltage L+
● Rating (DC) 24 V
● Reverse polarity protection is
Input current
Voltage from load L+ (no load), Max. 50 mA
From the backplane bus DC 5 V, Max 100 mA
Power loss
Power loss, typical value 1.5 W
Analog input
The number of analog inputs is 8
Voltage input Allowed input voltage (damage limit), Max. 20 V; 20 V DC continuous voltage, maximum 1 s DC 75V (duty cycle 1:20)
Current input Allowed input current (damage limit), Max. 40 mA
Input range
● Voltage is
● Current is
● Thermocouple No
● Resistance thermometer No
● Resistance No
Input range (rating), voltage
● 0 to +10 V No
● 1 V to 5 V Yes
- Input resistance (1 V to 5 V) 100 kΩ
● -1 V to +1 V yes
- Input resistance (-1 V to +1 V) 10 MΩ
● -10 V to +10 V Yes
- Input resistance (-10 V to +10 V) 100 kΩ
● -5 V to +5 V Yes
- Input resistance (-5 V to +5 V) 100 kΩ
● -500 mV to +500 mV Yes
● -80 mV to +80 mV Yes
Input range (rating), current
● 0 to 20 mA Yes
- Input resistance (0 to 20 mA) 50 Ω
● -20 mA to +20 mA Yes
- Input resistance (-20 mA to +20 mA) 50 Ω
● 4 mA to 20 mA Yes
- Input resistance (4 mA to 20 mA) 50 Ω
Conductor length
● Shielding, maximum 200 m
Input analog value composition
Integration and conversion time/resolution per channel
● Resolution (bits including symbols) with overmodulation, up to 14 bits; Unipolar: 14 bits; Bipolar: 13 bit + symbol
● Parameterizable integration time is
● Basic conversion time (ms) 52 µs per channel
● For interference frequency f1 (unit Hz), interference voltage suppression none /400/60/50 Hz
sensor
Signal sensor connection
● For the current measurement as a two-wire system transmitter
● For the current measurement as a four-wire system transmitter
Error/accuracy
Operating error limits throughout the temperature range
● Voltage, depending on the input range, (+/-) 0.4 %
● Current, related to the input range, (+/-) 0.3 %
Basic error limit (operating error limit at 25 °C)
● Voltage, depending on the input range, (+/-) 0.25%
● Current, related to input range, (+/-) 0.2 %
Alarm/diagnosis/status information
The diagnostic function is
alarm
● Diagnostic alarm yes; parameterizable
● Limit value alarm is; Parameterizable, channels 0 and 2
diagnosis
● Diagnostic information can be read Yes
Diagnostic display LED
● Cumulative failure SF (red) is
Potential isolation
Simulated input potential isolation
● Between channels no
● Between the channel and the backplane bus
● Between the channel and the supply voltage of the electronic component
insulation
Insulation test, using DC 500 V
Connect technology/title
Required front plug 20 pins
dimension
Width 40mm
Height 125 mm
Depth 117 mm
weight
Weight, about 230 g
FAQ
1.Who are We?
Beijing Zhongping Technology Co., LTD., is a one-stop integrated service provider of intelligent manufacturing, belongs to the Gong Doctor Group, is a scientific research, design, marketing, technical services, industrial Internet, international import and export services as one of the science and technology companies.
2.What can you buy from us?
PLC, inverter, human-machine interface, hydraulic products, low-voltage power distribution, industrial robots and core components
3.Is the item in stock or need to be purchased from another supplier?
We have a large inventory of goods and have our own warehouse.
4.What advantages do we have over other suppliers?
Our company has a large amount of inventory and a number of warehouses, but also in the country's important industrial provinces and cities with offices and a number of overseas service points. To provide you with intelligent manufacturing one-stop comprehensive services, save efforts, labor and cost.
5.Can you provide 100% new original authentic products?
We only sell new original genuine, no renovation, no fake, only for the original factory original!
6.How long is the delivery time?
If there is a stock, it will take 2-3 working days to ship, if the quantity is large, it will take 5-7 working days after receiving the payment, if it is not a conventional model, it will take some time, we will inform you of the specific delivery time.
7.Is there technical support available?
Of course, we have a professional technical team that can help you solve technical problems.
8.How do we guarantee quality?
We have three processes to control the quality of goods.
1). Our engineers will inspect the production and quality control in the factory regularly.
2) Incoming materials shall be inspected by experienced purchasing engineers before they can be stored.
3). At least 2 people in the logistics department cross-check the goods to be sent before delivery.
9.Can you guarantee the safe and reliable delivery of your products?
Yes, we strictly adopt the international standard packing. We also use special packaging for dangerous goods, and refrigerated shipping for items with temperature requirements. Special item packaging and general cargo standard packaging requirements may incur additional costs.
10.How about the freight?
The cost depends on how you choose to get the goods. Express is usually the fastest but also the most expensive way. Sea freight is the best solution for large quantities of goods. The exact shipping cost depends on the purchase amount、quantity and weight of your order. Please feel free to contact us for more information.
010-64225983
+8613811814778
info@zhongpingtech.com
Building 26, Liyuan Community, Chaoyang District, Beijing, China
