Introduction of customer and use scenarios

Clean rooms are widely used in pharmaceutical factories, microbiological products factories, research institute laboratories, microelectronics, semiconductors, Photovoltaic and other industries.

The humidity, temperature, and airflow pressure in the clean room are very important, and need real-time monitoring, precise adjustment and control, and automatic management is essential. Therefore, the automation control of the HVAC control system is the key issue.

In this project, customer is the clean room of a pharmaceutical factory in Brazil, which uses PLC to control the HVAC system. The connection between the PLC and the field instruments is the i/o card for PLC.

It's for a microbiology laboratory test, customer test contamination of vaccine. This company makes vaccines, serums against sneaks and spiders poison, they do R&D about drugs too.

Challenge

The customer is facing to these challenges:

• Too expensive
PLC needs a particular I/O card of proprietary, so the cost per I/O port is very high. wago plc cost about 20 USD per DO or DI and 60 USD per AI point

• user experience is bad
Hard to PLC programming, too slow communication, there are conflicts to polling

SOLUTION

Solution provider is LGRN company in Brazil. LGRN company choose Ethernet I/O module M160T to substitute I/O card.

The cost of Ethernet I/O module is less than USD200 but support 8 channels DI , 8 channels Analog input and 8-channels DO, therefore the average cost per I/O can reduce more than 50%.

Solution topology diagram

RESULT

With the help of solution provider who replace PLC card with M160T Ethernet I/O module, the customer pays less money on the automation of HVAC but get better clean room use experience.

Benefits

Reduce cost per I/O by more than 50%
Simplify wiring
Easy expansion
Few conflict, communication connection more reliable

Customer Testimonials

I tried many solutions, plc card, others I/O remote
The M160t is the best

The reasons of choosing M160T:

• Cost per I/O better than PLC card
• The PLC card refer to i/o card PLC cost about 20 usd per DO or DI and 60 USD per AI point All PLC card I know is always particular，
• Ethernet connection is a big differential
• Because M160T support Ethernet connection , it is better over others connection that uses RS485. And It is more confiability. the M160T works uninterrupted all time, works all function.
Fass communication.
• Possibility expansion points on RS485 port because M160T has RS485 port, there is possibility of expansion. expanse to support more sensors/instruments/data points
• There other advantage the only modbus map, only ID and IP With M160T we can do only one map registers with one ID and one IP address PLC see only "ONE" device only one register map for all instruments/ sensors /devices
• Easy PLC programming
• Direct access to 8AI, 8DI, 8DO, substitute for PLC card is really good!